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Geng X, Wang Y, Li H, Chen DDY. Characterization of cigarette smokeomics by in situ solid-phase microextraction and confined-space direct analysis in real time mass spectrometry. Talanta 2024; 280:126680. [PMID: 39128317 DOI: 10.1016/j.talanta.2024.126680] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2024] [Revised: 08/02/2024] [Accepted: 08/05/2024] [Indexed: 08/13/2024]
Abstract
Characterization of chemical composition in cigarette smoke is essential for establishing smoke-related exposure estimates. Currently used methods require complex sample preparation with limited capability for obtaining accurate chemical information. We have developed an in situ solid-phase microextraction (SPME) method for online processing of smoke aerosols and directly coupling the SPME probes with confined-space direct analysis in real time (cDART) ion source for high-resolution mass spectrometry (MS) analysis. In a confined space, the substances from SPME probes can be efficiently desorbed and ionized using the DART ion source, and the diffusion and evaporation of volatile species into the open air can be largely avoided. Using SPME-cDART-MS, mainstream smoke (MSS) and side-stream smoke (SSS) can be investigated and the whole analytical protocol can be accomplished in a few min. More than five hundred substances and several classes of compounds were detected and identified. The relative contents of 13 tobacco alkaloids were compared between MSS and SSS. Multivariate data analysis unveiled differences between different types of cigarette smoke and also discovered the characteristic ions. The method is reliable with good reproducibility and repeatability, and has the potential to be quantitative. This study provides a simple and high-efficiency method for smokeomics profiling of complex aerosol samples with in situ online extraction of volatile samples, and direct integration of extracted probes with a modified ambient ionization technique.
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Affiliation(s)
- Xin Geng
- Jiangsu Collaborative Innovation Center of Biomedical Functional Materials, Jiangsu Key Laboratory of Biomedical Materials, School of Chemistry and Materials Science, Nanjing Normal University, Nanjing, 210023, China
| | - Yanqiu Wang
- Jiangsu Collaborative Innovation Center of Biomedical Functional Materials, Jiangsu Key Laboratory of Biomedical Materials, School of Chemistry and Materials Science, Nanjing Normal University, Nanjing, 210023, China
| | - Hongli Li
- Jiangsu Collaborative Innovation Center of Biomedical Functional Materials, Jiangsu Key Laboratory of Biomedical Materials, School of Chemistry and Materials Science, Nanjing Normal University, Nanjing, 210023, China.
| | - David Da Yong Chen
- Jiangsu Collaborative Innovation Center of Biomedical Functional Materials, Jiangsu Key Laboratory of Biomedical Materials, School of Chemistry and Materials Science, Nanjing Normal University, Nanjing, 210023, China; Department of Chemistry, University of British Columbia, Vancouver, BC, V6T 1Z1, Canada.
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2
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Ulusoy S, Ulusoy Hİ, Locatelli M, Kabir A. Titania-based fabric phase sorptive extraction approach for the determination of antiepileptic drugs, levetiracetam and lamotrigine in urine samples using high-performance liquid chromatography-photo diode array detection. J Chromatogr A 2024; 1719:464737. [PMID: 38387152 DOI: 10.1016/j.chroma.2024.464737] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2023] [Revised: 02/06/2024] [Accepted: 02/12/2024] [Indexed: 02/24/2024]
Abstract
A new fabric phase sorptive extraction (FPSE) based separation and enrichment method was developed for sensitive determination of two antiepileptic drug molecules, Levetiracetam (LEV) and Lamotrigine (LTG). The analysis of these drug molecules was performed with high-performance liquid chromatography equipped with photodiode array detector (HPLC-PDA) after FPSE. HPLC analysis was carried out by using phenyl hexyl column, under isocratic conditions with the mobile phase composed of pH 3.0 buffer-acetonitrile (77:23 v: v). All parameters affecting the separation and enrichment process were studied and optimized step by step. The linear working range of the developed method was calculated in the range of 10.0-1000.0 ng mL-1 for both the drug molecules (LEV and LTG). The limits of detection of the method (LODs) were calculated as 2.72 and 3.64 ng mL-1, respectively. The relative standard deviation (%RSD) values of the developed method as an indicator of precision were varied between 4.0 and 7.3. The accuracy of the optimized FPSE method was determined by the recovery tests utilizing spiked samples and results were assessed in the range from 94.6 to 106.3%. This is the first application of sol-gel Titania polycaprolactone-polydimethylsiloxane-polycaprolactone (Ti-PCAP-PDMS-PCAP) based FPSE membrane in the determination of antiepileptic drug molecules.
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Affiliation(s)
- Songül Ulusoy
- Department of Pharmacy, Vocational School of Health Service, Sivas Cumhuriyet University, Sivas 58140, Turkiye.
| | - Halil İbrahim Ulusoy
- Department of Analytical Chemistry, Faculty of Pharmacy, Sivas Cumhuriyet University, Sivas 58140, Turkiye
| | - Marcello Locatelli
- Department of Pharmacy, University of Chieti-Pescara "G. d'Annunzio", Via dei Vestini 31, Chieti 66100, Italy
| | - Abuzar Kabir
- Department of Chemistry and Biochemistry, International Forensic Research Institute, Florida International University, 11200 SW 8th St, Miami, FL 33199, United States
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Sariga, Varghese A. The Renaissance of Ferrocene-Based Electrocatalysts: Properties, Synthesis Strategies, and Applications. Top Curr Chem (Cham) 2023; 381:32. [PMID: 37910233 DOI: 10.1007/s41061-023-00441-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2023] [Accepted: 10/06/2023] [Indexed: 11/03/2023]
Abstract
The fascinating electrochemical properties of the redox-active compound ferrocene have inspired researchers across the globe to develop ferrocene-based electrocatalysts for a wide variety of applications. Advantages including excellent chemical and thermal stability, solubility in organic solvents, a pair of stable redox states, rapid electron transfer, and nontoxic nature improve its utility in various electrochemical applications. The use of ferrocene-based electrocatalysts enables control over the intrinsic properties and electroactive sites at the surface of the electrode to achieve specific electrochemical activities. Ferrocene and its derivatives can function as a potential redox medium that promotes electron transfer rates, thereby enhancing the reaction kinetics and electrochemical responses of the device. The outstanding electrocatalytic activity of ferrocene-based compounds at lower operating potentials enhances the specificity and sensitivity of reactions and also amplifies the response signals. Owing to their versatile redox chemistry and catalytic activities, ferrocene-based electrocatalysts are widely employed in various energy-related systems, molecular machines, and agricultural, biological, medicinal, and sensing applications. This review highlights the importance of ferrocene-based electrocatalysts, with emphasis on their properties, synthesis strategies for obtaining different ferrocene-based compounds, and their electrochemical applications.
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Affiliation(s)
- Sariga
- CHRIST (Deemed to Be University), Bangalore, Karnataka, 560029, India
| | - Anitha Varghese
- CHRIST (Deemed to Be University), Bangalore, Karnataka, 560029, India.
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Soares S, Rosado T, Barroso M, Gallardo E. Solid Phase-Based Microextraction Techniques in Therapeutic Drug Monitoring. Pharmaceutics 2023; 15:pharmaceutics15041055. [PMID: 37111541 PMCID: PMC10142207 DOI: 10.3390/pharmaceutics15041055] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2023] [Revised: 03/18/2023] [Accepted: 03/22/2023] [Indexed: 04/29/2023] Open
Abstract
Therapeutic drug monitoring is an established practice for a small group of drugs, particularly those presenting narrow therapeutic windows, for which there is a direct relationship between concentration and pharmacological effects at the site of action. Drug concentrations in biological fluids are used, in addition to other clinical observation measures, to assess the patient's status, since they are the support for therapy individualization and allow assessing adherence to therapy. Monitoring these drug classes is of great importance, as it minimizes the risk of medical interactions, as well as toxic effects. In addition, the quantification of these drugs through routine toxicological tests and the development of new monitoring methodologies are extremely relevant for public health and for the well-being of the patient, and it has implications in clinical and forensic situations. In this sense, the use of new extraction procedures that employ smaller volumes of sample and organic solvents, therefore considered miniaturized and green techniques, is of great interest in this field. From these, the use of fabric-phase extractions seems appealing. Noteworthy is the fact that SPME, which was the first of these miniaturized approaches to be used in the early '90s, is still the most used solventless procedure, providing solid and sound results. The main goal of this paper is to perform a critical review of sample preparation techniques based on solid-phase microextraction for drug detection in therapeutic monitoring situations.
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Affiliation(s)
- Sofia Soares
- Centro de Investigação em Ciências da Saúde, Faculdade de Ciências da Saúde, Universidade da Beira Interior (CICS-UBI), 6200-506 Covilhã, Portugal
- Laboratório de Fármaco-Toxicologia, Ubimedical, Universidade da Beira Interior, 6200-284 Covilhã, Portugal
| | - Tiago Rosado
- Centro de Investigação em Ciências da Saúde, Faculdade de Ciências da Saúde, Universidade da Beira Interior (CICS-UBI), 6200-506 Covilhã, Portugal
- Laboratório de Fármaco-Toxicologia, Ubimedical, Universidade da Beira Interior, 6200-284 Covilhã, Portugal
| | - Mário Barroso
- Serviço de Química e Toxicologia Forenses, Instituto de Medicina Legal e Ciências Forenses-Delegação do Sul, 1169-201 Lisboa, Portugal
| | - Eugenia Gallardo
- Centro de Investigação em Ciências da Saúde, Faculdade de Ciências da Saúde, Universidade da Beira Interior (CICS-UBI), 6200-506 Covilhã, Portugal
- Laboratório de Fármaco-Toxicologia, Ubimedical, Universidade da Beira Interior, 6200-284 Covilhã, Portugal
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Dispersive magnetic solid-phase extraction for capsaicinoid compounds in human serum using LC-HRMS: targeted and non-targeted approaches. Anal Bioanal Chem 2023; 415:2133-2145. [PMID: 36695870 PMCID: PMC10079705 DOI: 10.1007/s00216-023-04544-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2022] [Revised: 12/19/2022] [Accepted: 01/13/2023] [Indexed: 01/26/2023]
Abstract
A new analytical method based on the use of dispersive magnetic solid-phase extraction (DMSPE) is described for the preconcentration of capsaicin (CAP), dihydrocapsaicin (DCAP), and N-vanillylnonanamide (PCAP) from human serum samples. The influence of several experimental factors affecting the adsorption (nature and amount of magnetic material, adsorption time, and pH) and desorption (nature of solvent, its volume and desorption time) steps was studied. Among seven different nanomaterials studied, the best results were obtained using magnetic multiwalled carbon nanotubes, which were characterized by means of spectrometry- and microscopy-based techniques. Analyses were performed by ultra-high-performance liquid chromatography with quadrupole-time-of-flight mass spectrometry using electrospray ionization in positive mode (UHPLC-ESI-Q-TOF-MS). The developed method was validated by obtaining several parameters, including linearity (0.3-300 μg L-1 range), and limits of detection which were 0.1, 0.15, and 0.17 μg L-1 for CAP, DCAP, and PCAP, respectively. The repeatability of the method, expressed as relative standard deviation (RSD, n = 7), varied from 3.4 to 11%. The serum samples were also studied through a non-targeted approach in a search for capsaicinoid metabolites and related compounds. With this objective, the fragmentation pathway of this family of compounds was initially studied and a strategy was established for the identification of novel or less studied capsaicinoid-derived compounds.
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Homemade Pipette Tip Solid-Phase Extraction for the Simultaneous Determination of 40 Drugs of Abuse in Urine by Liquid Chromatography–Tandem Mass Spectrometry. SEPARATIONS 2022. [DOI: 10.3390/separations9090233] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
Pipette tip solid-phase extraction facilitates the handling of low-volume samples and organic solvents in order to achieve more environmentally friendly pre-treatment sample techniques. The use of pipette tip extraction was examined for the quick and simple determination of a heterogeneous group of 40 drugs of abuse and some of their metabolites in urine by liquid chromatography coupled to tandem mass spectrometry. Several parameters were studied and optimized, including those which can affect extraction efficiencies, such as the amount of sorbent and the volumes and number of aspirating/dispensing cycles of the sample and organic solvents. The linear range of this method was between the quantification limit and 75 or 100 ng mL−1. Detection limits between 0.025 and 0.500 ng mL−1 and quantification limits from 0.100 to 1.500 ng mL−1 were achieved, which are adequate to determine the studied compounds in urine from drug users. Finally, in order to prove its suitability in toxicological and forensic analyses, the method was successfully applied to 22 urine specimens from women who were starting a detoxification program. Cocaine was the most frequently detected substance, as its presence or the presence of its main metabolite was found in 86% of the analyzed samples.
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Wei L, Wang D, Sun J, Wang X, Shen Y, Di H. Determination of Ten Long-Chain Fatty Acids in Poppy-Seed Oil Using Electro-Enhanced Solid-Phase Microextraction-GC/MS. FOOD ANAL METHOD 2022. [DOI: 10.1007/s12161-022-02301-7] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Zhang Y, Wang N, Lu Z, Chen N, Cui C, Chen X. Smart Titanium Wire Used for the Evaluation of Hydrophobic/Hydrophilic Interaction by In-Tube Solid Phase Microextraction. MOLECULES (BASEL, SWITZERLAND) 2022; 27:molecules27072353. [PMID: 35408750 PMCID: PMC9000888 DOI: 10.3390/molecules27072353] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/02/2022] [Revised: 03/29/2022] [Accepted: 04/01/2022] [Indexed: 11/16/2022]
Abstract
Evaluation of the hydrophobic/hydrophilic interaction individually between the sorbent and target compounds in sample pretreatment is a big challenge. Herein, a smart titanium substrate with switchable surface wettability was fabricated and selected as the sorbent for the solution. The titanium wires and meshes were fabricated by simple hydrothermal etching and chemical modification so as to construct the superhydrophilic and superhydrophobic surfaces. The micro/nano hierarchical structures of the formed TiO2 nanoparticles in situ on the surface of Ti substrates exhibited the switchable surface wettability. After UV irradiation for about 15.5 h, the superhydrophobic substrates became superhydrophilic. The morphologies and element composition of the wires were observed by SEM, EDS, and XRD, and their surface wettabilities were measured using the Ti mesh by contact angle goniometer. The pristine hydrophilic wire, the resulting superhydrophilic wire, superhydrophobic wire, and the UV-irradiated superhydrophilic wire were filled into a stainless tube as the sorbent instead of the sample loop of a six-port valve for on-line in-tube solid-phase microextraction. When employed in conjunction with HPLC, four kinds of wires were comparatively applied to extract six estrogens in water samples. The optimal conditions for the preconcentration and separation of target compounds were obtained with a sample volume of 60 mL, an injection rate of 2 mL/min, a desorption time of 2 min, and a mobile phase of acetonile/water (47/53, v/v). The results showed that both the superhydrophilic wire and UV-irradiated wire had the highest extraction efficiency for the polar compounds of estrogens with the enrichment factors in the range of 20-177, while the superhydrophobic wire exhibited the highest extraction efficiency for the non-polar compounds of five polycyclic aromatic hydrocarbons (PAHs). They demonstrated that extraction efficiency was mainly dependent on the surface wettability of the sorbent and the polarity of the target compounds, which was in accordance with the molecular theory of like dissolves like.
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Affiliation(s)
- Yuping Zhang
- College of Chemistry and Materials Engineering, Hunan University of Arts and Science, Changde 415000, China
- College of Chemistry and Chemical Engineering, Henan Institute of Science and Technology, Xinxiang 453000, China; (N.W.); (Z.L.); (N.C.); (C.C.); (X.C.)
- Correspondence: or
| | - Ning Wang
- College of Chemistry and Chemical Engineering, Henan Institute of Science and Technology, Xinxiang 453000, China; (N.W.); (Z.L.); (N.C.); (C.C.); (X.C.)
| | - Zhenyu Lu
- College of Chemistry and Chemical Engineering, Henan Institute of Science and Technology, Xinxiang 453000, China; (N.W.); (Z.L.); (N.C.); (C.C.); (X.C.)
| | - Na Chen
- College of Chemistry and Chemical Engineering, Henan Institute of Science and Technology, Xinxiang 453000, China; (N.W.); (Z.L.); (N.C.); (C.C.); (X.C.)
| | - Chengxing Cui
- College of Chemistry and Chemical Engineering, Henan Institute of Science and Technology, Xinxiang 453000, China; (N.W.); (Z.L.); (N.C.); (C.C.); (X.C.)
| | - Xinxin Chen
- College of Chemistry and Chemical Engineering, Henan Institute of Science and Technology, Xinxiang 453000, China; (N.W.); (Z.L.); (N.C.); (C.C.); (X.C.)
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Sun M, Li C, Feng J, Sun H, Sun M, Feng Y, Ji X, Han S, Feng J. Development of aerogels in solid-phase extraction and microextraction. Trends Analyt Chem 2022. [DOI: 10.1016/j.trac.2021.116497] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
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10
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Chen L, Wang J, Xu T, Feng X, Huang C, Shen X. Recent sample pretreatment methods for determination of selective serotonin reuptake inhibitors (SSRIs) in biological samples. J Pharm Biomed Anal 2021; 206:114364. [PMID: 34543943 DOI: 10.1016/j.jpba.2021.114364] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2021] [Revised: 08/29/2021] [Accepted: 09/03/2021] [Indexed: 12/20/2022]
Abstract
Selective serotonin reuptake inhibitors (SSRIs) such as fluoxetine (FLU), sertraline (SER), paroxetine (PAR), fluvoxamine (FLV) and citalopram (CIT) have been the first treatment drugs for pregnant and breastfeeding women. Quantitative analysis of SSRIs in biological samples is extremely needed in public health and clinical practice. During the analysis, sample pretreatment is an important step that can obtain an accurate quantitative analysis of SSRIs in the complex samples. The present paper discussed the recent development of sample preparation methods for SSRI analysis. Traditional sample preparation techniques such as liquid liquid extraction (LLE) and solid phase extraction (SPE), which have been widely used in the separation of SSRIs in biological samples, were extensively presented. Moreover, the new sample preparation techniques including liquid phase microextraction (LPME), solid phase microextraction (SPME), electromembrane extraction (EME) and other miniaturized extraction techniques, which are becoming highly popular in SSRI analysis, were also critically reviewed. In this review, both the advantages and disadvantages of these sample pretreatment methods were addressed. As a summary, we prospected the challenges and promising directions for the future of sample pretreatment methods in SSRI analysis.
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Affiliation(s)
- Li Chen
- Key Laboratory of Environment and Health, Ministry of Education & Ministry of Environmental Protection and State Key Laboratory of Environmental Health (Incubation), School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, 13 Hangkong Road, Wuhan 430030, China
| | - Jincheng Wang
- Key Laboratory of Environment and Health, Ministry of Education & Ministry of Environmental Protection and State Key Laboratory of Environmental Health (Incubation), School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, 13 Hangkong Road, Wuhan 430030, China
| | - Tyllis Xu
- Shanghai American School, 258 Jinfeng Road, Minhang District, Shanghai 201107, China; Wuhan Egaotech Company Lmt., 9F, Building 3, Science and Technolge new energy Base, East Lake High-Tech District, Wuhan 430075, China
| | - Xinrui Feng
- Key Laboratory of Environment and Health, Ministry of Education & Ministry of Environmental Protection and State Key Laboratory of Environmental Health (Incubation), School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, 13 Hangkong Road, Wuhan 430030, China
| | - Chuixiu Huang
- Department of Forensic Medicine, Huazhong University of Science and Technology, 13 Hangkong Road, Wuhan 430030, China
| | - Xiantao Shen
- Key Laboratory of Environment and Health, Ministry of Education & Ministry of Environmental Protection and State Key Laboratory of Environmental Health (Incubation), School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, 13 Hangkong Road, Wuhan 430030, China.
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Rosado T, Barroso M, Vieira DN, Gallardo E. Trends in microextraction approaches for handling human hair extracts - A review. Anal Chim Acta 2021; 1185:338792. [PMID: 34711317 DOI: 10.1016/j.aca.2021.338792] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2021] [Revised: 06/20/2021] [Accepted: 06/21/2021] [Indexed: 11/20/2022]
Abstract
The complementary role of hair in testing scenarios has expanded across the spectrum of toxicological and clinical monitoring investigations and, over the last 20 years, hair analysis has gained increasing attention and recognition. Moreover, a great deal of attention has been paid to the miniaturisation of extraction procedures, minimising/eliminating toxic organic solvents consumption, making them user-friendly and rapid, in addition to maximising extraction efficiency. The aim of this work is to provide a critical review of the advances observed over the last 5 years in the use of miniaturised approaches for sample clean-up and drug pre-concentration in hair analysis. There have been major improvements in some well-established microextraction approaches, such as liquid phase microextraction, mainly through the use of supramolecular and ionic liquids. In addition, new developments have also been reported in solid phase microextraction, driven by d-SPE applications. In the last 5 years, a total of 69 articles have been published using some type of microextraction technique for hair specimens, thus justifying the relevance of a critical review of innovations, improvements and trends related to these miniaturised approaches for sample preparation.
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Affiliation(s)
- Tiago Rosado
- Centro de Investigação em Ciências da Saúde (CICS-UBI), Universidade da Beira Interior, Covilhã, Portugal; Laboratório de Fármaco-Toxicologia - UBIMedical, Universidade da Beira Interior, Covilhã, Portugal; C4 - Cloud Computing Competence Centre, Universidade da Beira Interior, Covilhã, Portugal
| | - Mário Barroso
- Serviço de Química e Toxicologia Forenses, Instituto Nacional de Medicina Legal e Ciências Forenses, Delegação do Sul, Lisboa, Portugal
| | | | - Eugenia Gallardo
- Centro de Investigação em Ciências da Saúde (CICS-UBI), Universidade da Beira Interior, Covilhã, Portugal; Laboratório de Fármaco-Toxicologia - UBIMedical, Universidade da Beira Interior, Covilhã, Portugal.
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Headspace Solid-Phase Microextraction/Gas Chromatography-Mass Spectrometry for the Determination of 2-Nonenal and Its Application to Body Odor Analysis. Molecules 2021; 26:molecules26195739. [PMID: 34641283 PMCID: PMC8510471 DOI: 10.3390/molecules26195739] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2021] [Revised: 09/17/2021] [Accepted: 09/20/2021] [Indexed: 11/29/2022] Open
Abstract
The odors and emanations released from the human body can provide important information about the health status of individuals and the presence or absence of diseases. Since these components often emanate from the body surface in very small quantities, a simple sampling and sensitive analytical method is required. In this study, we developed a non-invasive analytical method for the measurement of the body odor component 2-nonenal by headspace solid-phase microextraction coupled with gas chromatography–mass spectrometry by selective ion monitoring. Using a StableFlex PDMS/DVB fiber, 2-nonenal was efficiently extracted and enriched by fiber exposition at 50 °C for 45 min and was separated within 10 min using a DB−1 capillary column. Body odor sample was easily collected by gauze wiping. The limit of detection of 2-nonenal collected in gauze was 22 pg (S/N = 3), and the linearity was obtained in the range of 1–50 ng with a correlation coefficient of 0.991. The method successfully analyzed 2-nonenal in skin emissions and secretions and was applied to the analysis of body odor changes in various lifestyles, including the use of cosmetics, food intake, cigarette smoking, and stress load.
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Norouzi F, Gharekhani A, Jouyban A, Shayanfar A. Spectrofluorimetric determination of indoxyl sulfate in human plasma after salting-out assisted liquid–liquid extraction. CHEMICAL PAPERS 2021. [DOI: 10.1007/s11696-021-01578-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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14
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Çelebier M. Ultrafiltration-based Sample Preparation for Pharmaceutical Analysis. CURR PHARM ANAL 2021. [DOI: 10.2174/1573412916999200729172653] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Pharmaceutical analysis plays an important role in all steps of drug development processes.
Analysis of active pharmaceutical ingredients in biological samples needs sample preparation techniques
to prevent the signal of the analyte from interferences coming from matrix components. Ultrafiltration
is a well-known technique used in the food and pharmaceutical industry. Commercial ultrafiltration
devices have been frequently used on proteomics and metabolomics studies for sample preparation.
In pharmaceutical analysis, these devices have been employed to analyze the free concentration of
drugs in biological fluids after filtration. However, they have been rarely used to determine the total
concentration of targeted compounds when it is compared with some other common sample preparation
techniques. Ultrafiltration-based sample preparation might be used to clean-up the sample easily
from matrix components especially on bioanalysis performed with high-performance liquid chromatography
(HPLC). In the case of using protein precipitation agents on filtration procedure, the quantitative
recovery of this non-selective unique technique is competitive with solid-phase extraction.
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Affiliation(s)
- Mustafa Çelebier
- Department of Analytical Chemistry, Faculty of Pharmacy, Hacettepe University, Ankara, Turkey
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15
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Carbonized Aramid Fiber as the Adsorbent for In-Tube Solid-Phase Microextraction to Detect Estrogens in Water Samples. J CHEM-NY 2021. [DOI: 10.1155/2021/9970518] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
Carbonized aramid fiber was prepared as a new type of adsorbent for in-tube solid-phase microextraction. The surface structure, chemical composition, and graphitization degree of the resulted fiber was determined and characterized by scanning electron microscopy, X-ray photoelectron spectroscopy, and Raman spectrometry. The prepared fiber was packed in a stainless-steel tube instead of the sample loop of a six-port and tested for the extraction of five environmental estrogen hormones coupled with high-performance liquid chromatography. Several parameters affecting the estrogens’ extraction including the sampling volume, sampling rate, NaCl content, and desorption time were investigated in detail. The extraction tube with carbonized aramid fiber exhibited remarkable extraction performance towards five estrogen targets. The analysis method was established, and it exhibited a wide linear range (0.5–10.0 μg/L) with good linearity (correlation coefficient ≥0.9906), low limits of detection (0.011–0.13 μg/L), and high enrichment factors (178–1335) for the five analytes. Relative standard deviations (n = 3) for intraday (≤4.8%) and interday (≤4.0%) tests indicated that the extraction material had satisfactory repeatability. Bisphenol A released from a polycarbonate (PC) bottle was quantitatively detected with a concentration of 8.3 μg/L. The relative recoveries spiked at 5 and 10 μg/L were investigated, and the results were in the range of 74.3–121% for real water samples.
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Ahmad SM, Gonçalves OC, Oliveira MN, Neng NR, Nogueira JMF. Application of Microextraction-Based Techniques for Screening-Controlled Drugs in Forensic Context-A Review. Molecules 2021; 26:2168. [PMID: 33918766 PMCID: PMC8070059 DOI: 10.3390/molecules26082168] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2021] [Revised: 04/03/2021] [Accepted: 04/06/2021] [Indexed: 01/12/2023] Open
Abstract
The analysis of controlled drugs in forensic matrices, i.e., urine, blood, plasma, saliva, and hair, is one of the current hot topics in the clinical and toxicological context. The use of microextraction-based approaches has gained considerable notoriety, mainly due to the great simplicity, cost-benefit, and environmental sustainability. For this reason, the application of these innovative techniques has become more relevant than ever in programs for monitoring priority substances such as the main illicit drugs, e.g., opioids, stimulants, cannabinoids, hallucinogens, dissociative drugs, and related compounds. The present contribution aims to make a comprehensive review on the state-of-the art advantages and future trends on the application of microextraction-based techniques for screening-controlled drugs in the forensic context.
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Affiliation(s)
- Samir M. Ahmad
- Centro de Química Estrutural, Faculdade de Ciências, Universidade de Lisboa, 1749-016 Lisboa, Portugal; (O.C.G.); (M.N.O.)
- Molecular Pathology and Forensic Biochemistry Laboratory, CiiEM, Campus Universitário—Quinta da Granja, Monte da Caparica, 2829-511 Caparica, Portugal
- Forensic and Psychological Sciences Laboratory Egas Moniz, Campus Universitário—Quinta da Granja, Monte da Caparica, 2829-511 Caparica, Portugal
| | - Oriana C. Gonçalves
- Centro de Química Estrutural, Faculdade de Ciências, Universidade de Lisboa, 1749-016 Lisboa, Portugal; (O.C.G.); (M.N.O.)
| | - Mariana N. Oliveira
- Centro de Química Estrutural, Faculdade de Ciências, Universidade de Lisboa, 1749-016 Lisboa, Portugal; (O.C.G.); (M.N.O.)
| | - Nuno R. Neng
- Centro de Química Estrutural, Faculdade de Ciências, Universidade de Lisboa, 1749-016 Lisboa, Portugal; (O.C.G.); (M.N.O.)
- Departamento de Química e Bioquímica, Faculdade de Ciências, Universidade de Lisboa, 1749-016 Lisboa, Portugal
| | - José M. F. Nogueira
- Centro de Química Estrutural, Faculdade de Ciências, Universidade de Lisboa, 1749-016 Lisboa, Portugal; (O.C.G.); (M.N.O.)
- Departamento de Química e Bioquímica, Faculdade de Ciências, Universidade de Lisboa, 1749-016 Lisboa, Portugal
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17
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Kataoka H. In-tube solid-phase microextraction: Current trends and future perspectives. J Chromatogr A 2020; 1636:461787. [PMID: 33359971 DOI: 10.1016/j.chroma.2020.461787] [Citation(s) in RCA: 25] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2020] [Revised: 12/02/2020] [Accepted: 12/04/2020] [Indexed: 01/01/2023]
Abstract
In-tube solid-phase microextraction (IT-SPME) was developed about 24 years ago as an effective sample preparation technique using an open tubular capillary column as an extraction device. IT-SPME is useful for micro-concentration, automated sample cleanup, and rapid online analysis, and can be used to determine the analytes in complex matrices simple sample processing methods such as direct sample injection or filtration. IT-SPME is usually performed in combination with high-performance liquid chromatography using an online column switching technology, in which the entire process from sample preparation to separation to data analysis is automated using the autosampler. Furthermore, IT-SPME minimizes the use of harmful organic solvents and is simple and labor-saving, making it a sustainable and environmentally friendly green analytical technique. Various operating systems and new sorbent materials have been developed to improve its extraction efficiency by, for example, enhancing its sorption capacity and selectivity. In addition, IT-SPME methods have been widely applied in environmental analysis, food analysis and bioanalysis. This review describes the present state of IT-SPME technology and summarizes its current trends and future perspectives, including method development and strategies to improve extraction efficiency.
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Affiliation(s)
- Hiroyuki Kataoka
- School of Pharmacy, Shujitsu University, Nishigawara, Okayama 703-8516, Japan.
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18
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Peng LQ, Cao J. Modern microextraction techniques for natural products. Electrophoresis 2020; 42:219-232. [PMID: 33215711 DOI: 10.1002/elps.202000248] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2020] [Revised: 10/16/2020] [Accepted: 11/03/2020] [Indexed: 11/11/2022]
Abstract
Natural product analysis has gained wide attention in recent years, especially for herbal medicines, which contain complex ingredients and play a significant clinical role in the therapy of numerous diseases. The constituents of natural products are usually found at low concentrations, and the matrices are complex. Thus, the extraction of target compounds from natural products before analysis by analytical instruments is very significant for human health and its wide application. The commonly used traditional extraction methods are time-consuming, using large amounts of sample and organic solvents, as well as expensive and inefficient. Recently, microextraction techniques have been used for natural product extraction to overcome the disadvantages of conventional extraction methods. In this paper, the successful applications of and recent developments in microextraction techniques including solvent-based and sorbent-based microextraction methods, in natural product analysis in recent years, especially in the last 5 years, are reviewed for the first time. Their features, advantages, disadvantages, and future development trends are also discussed.
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Affiliation(s)
- Li-Qing Peng
- College of Pharmaceutical Sciences, Hangzhou Normal University, Hangzhou, 311121, P. R. China
| | - Jun Cao
- College of Pharmaceutical Sciences, Hangzhou Normal University, Hangzhou, 311121, P. R. China.,College of Material Chemistry and Chemical Engineering, Hangzhou Normal University, Hangzhou, 311121, P. R. China
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19
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Nedaei M, Abdi K, Ghorbanian SA, Pirooznia N. Ultrasonic-Air-Assisted Solidification of Settled Organic Drop Microextraction Using Terpene-Based Deep Eutectic Solvents for the Effectual Enrichment of Methadone in Biological Samples. Chromatographia 2020. [DOI: 10.1007/s10337-020-03952-6] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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20
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Compensate for or Minimize Matrix Effects? Strategies for Overcoming Matrix Effects in Liquid Chromatography-Mass Spectrometry Technique: A Tutorial Review. Molecules 2020; 25:molecules25133047. [PMID: 32635301 PMCID: PMC7412464 DOI: 10.3390/molecules25133047] [Citation(s) in RCA: 89] [Impact Index Per Article: 22.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2020] [Revised: 06/30/2020] [Accepted: 07/01/2020] [Indexed: 11/16/2022] Open
Abstract
In recent decades, mass spectrometry techniques, particularly when combined with separation methods such as high-performance liquid chromatography, have become increasingly important in pharmaceutical, bio-analytical, environmental, and food science applications because they afford high selectivity and sensitivity. However, mass spectrometry has limitations due to the matrix effects (ME), which can be particularly marked in complex mixes, when the analyte co-elutes together with other molecules, altering analysis results quantitatively. This may be detrimental during method validation, negatively affecting reproducibility, linearity, selectivity, accuracy, and sensitivity. Starting from literature and own experience, this review intends to provide a simple guideline for selecting the best operative conditions to overcome matrix effects in LC-MS techniques, to obtain the best result in the shortest time. The proposed methodology can be of benefit in different sectors, such as pharmaceutical, bio-analytical, environmental, and food sciences. Depending on the required sensitivity, analysts may minimize or compensate for ME. When sensitivity is crucial, analysis must try to minimize ME by adjusting MS parameters, chromatographic conditions, or optimizing clean-up. On the contrary, to compensate for ME analysts should have recourse to calibration approaches depending on the availability of blank matrix. When blank matrices are available, calibration can occur through isotope labeled internal standards and matrix matched calibration standards; conversely, when blank matrices are not available, calibration can be performed through isotope labeled internal standards, background subtraction, or surrogate matrices. In any case, an adjusting of MS parameters, chromatographic conditions, or a clean-up are necessary.
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21
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Manousi N, Tzanavaras PD, Zacharis CK. Bioanalytical HPLC Applications of In-Tube Solid Phase Microextraction: A Two-Decade Overview. Molecules 2020; 25:molecules25092096. [PMID: 32365828 PMCID: PMC7248733 DOI: 10.3390/molecules25092096] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2020] [Revised: 04/28/2020] [Accepted: 04/29/2020] [Indexed: 12/18/2022] Open
Abstract
In-tube solid phase microextraction is a cutting-edge sample treatment technique offering significant advantages in terms of miniaturization, green character, automation, and preconcentration prior to analysis. During the past years, there has been a considerable increase in the reported publications, as well as in the research groups focusing their activities on this technique. In the present review article, HPLC bioanalytical applications of in-tube SPME are discussed, covering a wide time frame of twenty years of research reports. Instrumental aspects towards the coupling of in-tube SPME and HPLC are also discussed, and detailed information on materials/coatings and applications in biological samples are provided.
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Affiliation(s)
- Natalia Manousi
- Laboratory of Analytical Chemistry, School of Chemistry, Faculty of Sciences, Aristotle University of Thessaloniki, GR-54124 Thessaloniki, Greece; (N.M.); (P.D.T.)
| | - Paraskevas D. Tzanavaras
- Laboratory of Analytical Chemistry, School of Chemistry, Faculty of Sciences, Aristotle University of Thessaloniki, GR-54124 Thessaloniki, Greece; (N.M.); (P.D.T.)
| | - Constantinos K. Zacharis
- Laboratory of Pharmaceutical Analysis, Department of Pharmaceutical Technology, School of Pharmacy, Aristotle University of Thessaloniki, GR-54124 Thessaloniki, Greece
- Correspondence: ; Tel.: +30-231-099-7663
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22
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Lizot LDLF, da Silva ACC, Bastiani MF, Maurer TF, Hahn RZ, Perassolo MS, Antunes MV, Linden R. Simultaneous Determination of Cocaine and Metabolites in Human Plasma Using Solid Phase Micro-Extraction Fiber Tips C18 and UPLC-MS/MS. J Anal Toxicol 2020; 44:49-56. [PMID: 31095712 DOI: 10.1093/jat/bkz042] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2019] [Revised: 03/10/2019] [Indexed: 11/14/2022] Open
Abstract
The determination of cocaine (COC) and its metabolites ecgonine methyl ester (EME), benzoylecgonine (BZE), norcocaine (NCOC) and cocaethylene (CE) in human plasma is relevant in clinical and forensic toxicology. An efficient extraction and clean-up of plasma specimens for the simultaneous determination of BZE along with COC and basic metabolites is challenging due to their widely different polarities and ionization characteristics. Recently, biocompatible SPME LC tips C18 became commercially available. We applied SPME LC tips C18 to the simultaneous extraction of COC, BZE, EME, NCOC, and CE by direct immersion of the fiber in plasma diluted with a buffer at pH 8.0. Analytes were desorbed from the fiber to methanol containing formic acid and injected into a UPLC-MS/MS system. The assay was linear from 5 to 500 ng mL-1. Precision assays presented CV% in the range of 2.22 to 10.54%, and accuracy was in the range of 93.4-108.1%. The assay requires minimal quantities of plasma and organic solvents, allowing multiple extractions in parallel. Biocompatible SPME is a promising alternative for preparing biological samples prior to drug measurement by UPLC-MS/MS.
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Affiliation(s)
- Lilian de Lima Feltraco Lizot
- Laboratory of Analytical Toxicology, Feevale University, Novo Hamburgo, Brazil.,National Institute of Science and Technology in Forensic Sciences (INCT Forense), Brazil.,Graduate Program on Toxicology and Analytical Toxicology, Universidade Feevale, Novo Hamburgo-RS, Brazil
| | - Anne Caroline Cezimbra da Silva
- Laboratory of Analytical Toxicology, Feevale University, Novo Hamburgo, Brazil.,Graduate Program on Toxicology and Analytical Toxicology, Universidade Feevale, Novo Hamburgo-RS, Brazil
| | - Marcos Frank Bastiani
- Laboratory of Analytical Toxicology, Feevale University, Novo Hamburgo, Brazil.,National Institute of Science and Technology in Forensic Sciences (INCT Forense), Brazil.,Graduate Program on Toxicology and Analytical Toxicology, Universidade Feevale, Novo Hamburgo-RS, Brazil
| | | | - Roberta Zilles Hahn
- Laboratory of Analytical Toxicology, Feevale University, Novo Hamburgo, Brazil
| | - Magda Susana Perassolo
- Graduate Program on Toxicology and Analytical Toxicology, Universidade Feevale, Novo Hamburgo-RS, Brazil
| | - Marina Venzon Antunes
- Laboratory of Analytical Toxicology, Feevale University, Novo Hamburgo, Brazil.,Graduate Program on Toxicology and Analytical Toxicology, Universidade Feevale, Novo Hamburgo-RS, Brazil
| | - Rafael Linden
- Laboratory of Analytical Toxicology, Feevale University, Novo Hamburgo, Brazil.,National Institute of Science and Technology in Forensic Sciences (INCT Forense), Brazil.,Graduate Program on Toxicology and Analytical Toxicology, Universidade Feevale, Novo Hamburgo-RS, Brazil
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23
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Jalili V, Barkhordari A, Ghiasvand A. Bioanalytical Applications of Microextraction Techniques: A Review of Reviews. Chromatographia 2020. [DOI: 10.1007/s10337-020-03884-1] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
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24
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Sample preparation for the analysis of drugs in biological fluids. HANDBOOK OF ANALYTICAL SEPARATIONS 2020. [DOI: 10.1016/b978-0-444-64066-6.00001-0] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
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25
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Review of Ionic Liquids in Microextraction Analysis of Pesticide Residues in Fruit and Vegetable Samples. Chromatographia 2019. [DOI: 10.1007/s10337-019-03818-6] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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26
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Ishizaki A, Kataoka H. A sensitive method for the determination of tobacco-specific nitrosamines in mainstream and sidestream smokes of combustion cigarettes and heated tobacco products by online in-tube solid-phase microextraction coupled with liquid chromatography-tandem mass spectrometry. Anal Chim Acta 2019; 1075:98-105. [DOI: 10.1016/j.aca.2019.04.073] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2019] [Revised: 04/21/2019] [Accepted: 04/30/2019] [Indexed: 12/14/2022]
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27
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28
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Ali I, Suhail M, Alharbi OML, Hussain I. Advances in sample preparation in chromatography for organic environmental pollutants analyses. J LIQ CHROMATOGR R T 2019. [DOI: 10.1080/10826076.2019.1579739] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Affiliation(s)
- Imran Ali
- Department of Chemistry, College of Science, Taibah University, Al-Medina Al-Munawarah, Saudi Arabia
- Department of Chemistry, Jamia Millia Islamia, New Delhi, India
| | - Mohd. Suhail
- Department of Chemistry, Jamia Millia Islamia, New Delhi, India
| | - Omar M. L. Alharbi
- Department of Biology, College of Science, Taibah University, Al-Medina Al-Munawarah, Saudi Arabia
| | - Iqbal Hussain
- Department of General Studies, Jubail Industrial College, Jubail Industrial City, Saudi Arabia
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29
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Alsharif AMA, Choo YM, Tan GH, Abdulra’uf LB. Determination of Mycotoxins Using Hollow Fiber Dispersive Liquid–Liquid–Microextraction (HF-DLLME) Prior to High-Performance Liquid Chromatography – Tandem Mass Spectrometry (HPLC - MS/MS). ANAL LETT 2019. [DOI: 10.1080/00032719.2019.1587766] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Affiliation(s)
- Ali Mohamed Ali Alsharif
- Department of Chemistry, Faculty of Science, University of Malaya, Kuala Lumpur , Malaysia
- Arab Centre for Desertification and Development of Saharian Societies, Murzuk, Libya
| | - Yeun-Mun Choo
- Department of Chemistry, Faculty of Science, University of Malaya, Kuala Lumpur , Malaysia
| | - Guan Huat Tan
- Department of Chemistry, Faculty of Science, University of Malaya, Kuala Lumpur , Malaysia
| | - Lukman Bola Abdulra’uf
- Department of Chemistry, College of Pure and Applied Sciences, Kwara State University, Malete, Nigeria
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30
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Zhang Y, Duan Y. A double-functionalized polymeric ionic liquid used as solid-phase microextraction coating for efficient aromatic amine extraction and detection with gas chromatography–mass spectrometry. Anal Bioanal Chem 2019; 411:2209-2221. [DOI: 10.1007/s00216-019-01664-x] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2018] [Revised: 01/21/2019] [Accepted: 01/31/2019] [Indexed: 12/17/2022]
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31
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Kermani M, Jafari MT, Saraji M. Porous magnetized carbon sheet nanocomposites for dispersive solid-phase microextraction of organophosphorus pesticides prior to analysis by gas chromatography-ion mobility spectrometry. Mikrochim Acta 2019; 186:88. [PMID: 30631951 DOI: 10.1007/s00604-018-3215-6] [Citation(s) in RCA: 26] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2018] [Accepted: 12/28/2018] [Indexed: 10/27/2022]
Abstract
Carbon sheets were attached to magnetite (Fe3O4) nanoparticles. The resulting nanocomposite is shown to be a viable sorbent for use in magnetic dispersive solid-phase microextraction of three organophosphorus pesticides. The sorbent was synthesized via the sol-gel process followed by calcination and was characterized by an X-ray diffractometer, field emission scanning electron microscopy and energy dispersive X-ray spectroscopy, Fourier transform infrared spectroscopy, and Raman spectrometry techniques. The affecting parameters in the adsorption and desorption steps were assessed and optimized via response surface methodology. Following desorption with dichloromethane, the OPPs were quantified by gas chromatography along with ion mobility spectrometry detection. Under optimized conditions, the limits of detection were 1.00, 0.46 and 0.85 μg L-1 for fenthion, malathion and chlorpyrifos, respectively. Response is linear in the concentration range of 2-500 μg L-1 for fenthion and malathion, and 2-1000 μg L-1 for chlorpyrifos with the determination coefficient larger than 0.9969. The intra-day and inter-day precision were from 3 to 9% and 5 to 16%, respectively. The enrichment factor was greater than 142 for all the studied pesticides. The sorbent was used for analyze spiked water and vegetable samples and gave relative recovery higher than 82%. Graphical abstract A flowchart of the synthesis of porous magnetized carbon sheet nanocomposites and the process of the magnetic dispersive solid-phase microextraction (MD-μ-SPE) of three organophosphorus pesticides prior to analysis by gas chromatography-ion mobility spectrometry (GC-IMS).
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Affiliation(s)
- Mansoure Kermani
- Department of Chemistry, Isfahan University of Technology, Isfahan, 84156-83111, Iran
| | - Mohammad T Jafari
- Department of Chemistry, Isfahan University of Technology, Isfahan, 84156-83111, Iran.
| | - Mohammad Saraji
- Department of Chemistry, Isfahan University of Technology, Isfahan, 84156-83111, Iran
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32
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Pereira JAM, Gonçalves J, Porto-Figueira P, Figueira JA, Alves V, Perestrelo R, Medina S, Câmara JS. Current trends on microextraction by packed sorbent – fundamentals, application fields, innovative improvements and future applications. Analyst 2019; 144:5048-5074. [DOI: 10.1039/c8an02464b] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
MEPS, the acronym of microextraction by packed sorbent, is a simple, fast and user- and environmentally-friendly miniaturization of the popular solid-phase extraction technique (SPE).
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Affiliation(s)
- Jorge A. M. Pereira
- CQM – Centro de Química da Madeira
- Universidade da Madeira
- 9020-105 Funchal
- Portugal
| | - João Gonçalves
- CQM – Centro de Química da Madeira
- Universidade da Madeira
- 9020-105 Funchal
- Portugal
| | | | - José A. Figueira
- CQM – Centro de Química da Madeira
- Universidade da Madeira
- 9020-105 Funchal
- Portugal
| | - Vera Alves
- CQM – Centro de Química da Madeira
- Universidade da Madeira
- 9020-105 Funchal
- Portugal
| | - Rosa Perestrelo
- CQM – Centro de Química da Madeira
- Universidade da Madeira
- 9020-105 Funchal
- Portugal
| | - Sonia Medina
- CQM – Centro de Química da Madeira
- Universidade da Madeira
- 9020-105 Funchal
- Portugal
| | - José S. Câmara
- CQM – Centro de Química da Madeira
- Universidade da Madeira
- 9020-105 Funchal
- Portugal
- Faculdade de Ciências Exatas e da Engenharia
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33
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Havlikova M, Cabala R, Pacakova V, Bursova M, Bosakova Z. Critical evaluation of microextraction pretreatment techniques - Part 1: Single drop and sorbent-based techniques. J Sep Sci 2018; 42:273-284. [DOI: 10.1002/jssc.201800902] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2018] [Revised: 10/02/2018] [Accepted: 10/02/2018] [Indexed: 12/16/2022]
Affiliation(s)
- Martina Havlikova
- Faculty of Science; Department of Analytical Chemistry; Charles University; Prague 2 Czech Republic
| | - Radomir Cabala
- Faculty of Science; Department of Analytical Chemistry; Charles University; Prague 2 Czech Republic
- Toxicology Department; Institute of Forensic Medicine and Toxicology; General University Hospital in Prague and 1st Faculty of Medicine of Charles University; Prague 2 Czech Republic
| | - Vera Pacakova
- Faculty of Science; Department of Analytical Chemistry; Charles University; Prague 2 Czech Republic
| | - Miroslava Bursova
- Faculty of Science; Department of Analytical Chemistry; Charles University; Prague 2 Czech Republic
- Toxicology Department; Institute of Forensic Medicine and Toxicology; General University Hospital in Prague and 1st Faculty of Medicine of Charles University; Prague 2 Czech Republic
| | - Zuzana Bosakova
- Faculty of Science; Department of Analytical Chemistry; Charles University; Prague 2 Czech Republic
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34
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Wu YJ, Li YS, Tseng WL, Lu CY. Microextraction combined with microderivatization for drug monitoring and protein modification analysis from limited blood volume using mass spectrometry. Anal Bioanal Chem 2018; 410:7405-7414. [PMID: 30191273 DOI: 10.1007/s00216-018-1349-3] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2018] [Revised: 08/18/2018] [Accepted: 08/28/2018] [Indexed: 12/15/2022]
Abstract
In the clinic, ethosuximide is commonly used to treat generalized absence seizures but has recently been repurposed for other diseases. Because of adverse effects and drug interactions, high-throughput therapeutic drug monitoring of ethosuximide is necessary. Microextraction is a simple, effective, rapid, and low consumption of organic solvents method for sample preparation. In this study, microderivatization-increased detection (MDID)-combined microextraction was used to detect ethosuximide by mass spectrometry. Ethosuximide is a difficult to retain and ionize compound in the C18 nano-flow column and ionization interface, respectively. Hence, we developed a fast method for detecting ethosuximide in human plasma by using the MDID strategy (within 2 min). Chemical microderivatization parameters were studied and optimized to increase the sensitivity of ethosuximide detection at trace levels. The linear range for the analysis of ethosuximide in 10 μL plasma was 5-500 μg/mL with a coefficient of determination (r2) ≥ 0.995. The precision and accuracy of intraday and interday analyses of ethosuximide were below 13.0%. Furthermore, modifications of major proteins in plasma and blood cells, induced by ethosuximide, were identified. The proposed method effectively utilizes microliter samples to detect drug plasma concentrations under suitable microextraction procedures toward the eco-friendly goal of low consumption of organic solvents. Graphical abstract ᅟ.
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Affiliation(s)
- Ying-Jung Wu
- Department of Biochemistry, College of Medicine, Kaohsiung Medical University, Kaohsiung, 80708, Taiwan
| | - Yi-Shan Li
- Department of Biochemistry, College of Medicine, Kaohsiung Medical University, Kaohsiung, 80708, Taiwan
| | - Wei-Lung Tseng
- Department of Chemistry, College of Science, National Sun Yat-sen University, Kaohsiung, 80424, Taiwan
| | - Chi-Yu Lu
- Department of Biochemistry, College of Medicine, Kaohsiung Medical University, Kaohsiung, 80708, Taiwan.
- Research Center for Environmental Medicine, Kaohsiung Medical University, Kaohsiung, 80708, Taiwan.
- Institute of Medical Science and Technology, National Sun Yat-sen University, Kaohsiung, 80424, Taiwan.
- Department of Medical Research, Kaohsiung Medical University Hospital, Kaohsiung, 80708, Taiwan.
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35
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Analysis of nicotine and cotinine in hair by on-line in-tube solid-phase microextraction coupled with liquid chromatography-tandem mass spectrometry as biomarkers of exposure to tobacco smoke. J Pharm Biomed Anal 2018; 156:272-277. [DOI: 10.1016/j.jpba.2018.04.032] [Citation(s) in RCA: 33] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2018] [Revised: 04/21/2018] [Accepted: 04/22/2018] [Indexed: 12/13/2022]
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36
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Pérez-Rodríguez M, Pellerano RG, Pezza L, Pezza HR. An overview of the main foodstuff sample preparation technologies for tetracycline residue determination. Talanta 2018; 182:1-21. [DOI: 10.1016/j.talanta.2018.01.058] [Citation(s) in RCA: 57] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2017] [Revised: 01/19/2018] [Accepted: 01/20/2018] [Indexed: 12/26/2022]
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37
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Novel capsule phase microextraction in combination with liquid chromatography-tandem mass spectrometry for determining personal care products in environmental water. Anal Bioanal Chem 2018; 410:2991-3001. [DOI: 10.1007/s00216-018-0984-z] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2017] [Revised: 02/12/2018] [Accepted: 02/23/2018] [Indexed: 12/27/2022]
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38
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Tian Y, Feng J, Wang X, Sun M, Luo C. Silicon carbide nanomaterial as a coating for solid-phase microextraction. J Sep Sci 2018; 41:1995-2002. [PMID: 29377595 DOI: 10.1002/jssc.201701156] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2017] [Revised: 01/17/2018] [Accepted: 01/17/2018] [Indexed: 11/07/2022]
Abstract
Silicon carbide has excellent properties, such as corrosion resistance, high strength, oxidation resistance, high temperature, and so on. Based on these properties, silicon carbide was coated on stainless-steel wire and used as a solid-phase microextraction coating, and polycyclic aromatic hydrocarbons were employed as model analytes. Using gas chromatography, some important factors that affect the extraction efficiency were optimized one by one, and an analytical method was established. The analytical method showed wide linear ranges (0.1-30, 0.03-30, and 0.01-30 μg/L) with satisfactory correlation coefficients (0.9922-0.9966) and low detection limits (0.003-0.03 μg/L). To investigate the practical application of the method, rainwater and cigarette ash aqueous solution were collected as real samples for extraction and detection. The results indicate that silicon carbide has excellent application in the field of solid-phase microextraction.
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Affiliation(s)
- Yu Tian
- Key Laboratory of Interfacial Reaction & Sensing Analysis in Universities of Shandong, School of Chemistry and Chemical Engineering, University of Jinan, Jinan, P. R. China
| | - Juanjuan Feng
- Key Laboratory of Interfacial Reaction & Sensing Analysis in Universities of Shandong, School of Chemistry and Chemical Engineering, University of Jinan, Jinan, P. R. China
| | - Xiuqin Wang
- Key Laboratory of Interfacial Reaction & Sensing Analysis in Universities of Shandong, School of Chemistry and Chemical Engineering, University of Jinan, Jinan, P. R. China
| | - Min Sun
- Key Laboratory of Interfacial Reaction & Sensing Analysis in Universities of Shandong, School of Chemistry and Chemical Engineering, University of Jinan, Jinan, P. R. China
| | - Chuannan Luo
- Key Laboratory of Interfacial Reaction & Sensing Analysis in Universities of Shandong, School of Chemistry and Chemical Engineering, University of Jinan, Jinan, P. R. China
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39
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Chormey DS, Bakırdere S. Principles and Recent Advancements in Microextraction Techniques. FUNDAMENTALS OF QUORUM SENSING, ANALYTICAL METHODS AND APPLICATIONS IN MEMBRANE BIOREACTORS 2018. [DOI: 10.1016/bs.coac.2018.03.011] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
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40
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Amiri A, Ghaemi F. Graphene grown on stainless steel mesh as a highly efficient sorbent for sorptive microextraction of polycyclic aromatic hydrocarbons from water samples. Anal Chim Acta 2017; 994:29-37. [DOI: 10.1016/j.aca.2017.08.049] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2017] [Revised: 08/23/2017] [Accepted: 08/26/2017] [Indexed: 12/31/2022]
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41
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El-Beqqali A, Andersson LI, Jeppsson AD, Abdel-Rehim M. Molecularly imprinted polymer-sol-gel tablet toward micro-solid phase extraction: II. Determination of amphetamine in human urine samples by liquid chromatography-tandem mass spectrometry. J Chromatogr B Analyt Technol Biomed Life Sci 2017; 1063:130-135. [PMID: 28863334 DOI: 10.1016/j.jchromb.2017.08.027] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2017] [Revised: 08/04/2017] [Accepted: 08/19/2017] [Indexed: 12/15/2022]
Abstract
Amphetamine selective molecularly imprinted sol-gel polymer tablets, MIP-tablets, for solid-phase microextraction of biofluid samples were prepared. An acetonitrile solution of deuterated amphetamine template and silane precursor, 3-(propylmethacrylate) trimethoxysilane, was soaked into the pores of polyethylene tablet substrates and polymerized by an acid-catalysed sol-gel process. Application of the resultant MIP-tablets to extract amphetamine from human urine samples followed by LC-MS/MS analysis was investigated. The extraction protocol was optimised with respect to pH of sample, addition of sodium chloride, extraction time, desorption solvent and desorption time. The final analysis method determined amphetamine in human urine with a limit of detection (LOD) of 1.0ng/mL and a lower limit of quantification (LLOQ) of 5ng/mL. Validation demonstrated accuracy of the method was 91.0-104.0% and inter-assay precision was 4.8-8.5% (RSD). Extraction recovery was 80%. The MIP-tablets could be re-used and the same tablet could be employed for more than twenty extractions.
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Affiliation(s)
- Aziza El-Beqqali
- Department of Environmental Sci. & Analytical Chemistry, Stockholm University, SE10691 Stockholm, Sweden
| | - Lars I Andersson
- Department of Laboratory Medicine, Karolinska Institutet, Stockholm, Sweden
| | | | - Mohamed Abdel-Rehim
- Department of Environmental Sci. & Analytical Chemistry, Stockholm University, SE10691 Stockholm, Sweden.
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42
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Rivoira L, Studzińska S, Szultka-Młyńska M, Bruzzoniti MC, Buszewski B. New approaches for extraction and determination of betaine from Beta vulgaris samples by hydrophilic interaction liquid chromatography-tandem mass spectrometry. Anal Bioanal Chem 2017; 409:5133-5141. [PMID: 28664334 PMCID: PMC5534198 DOI: 10.1007/s00216-017-0461-0] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2017] [Revised: 05/22/2017] [Accepted: 06/09/2017] [Indexed: 11/30/2022]
Abstract
Betaine is one of most studied biologically active compounds, due its role in the main biological processes. Although it may be found in several plants and roots, such as the Beta vulgaris family, present in typical diets, just a few analytical methods have been developed for its extraction from roots. A new, quick and effective procedure for the isolation and determination of betaine from two different varieties of B. vulgaris (red and gold) is presented. For betaine extraction, an accelerated solvent extraction (ASE) was coupled with solid-phase extraction. For betaine determination, a separation method based on hydrophilic interaction chromatography coupled with tandem mass spectrometry was optimized for a sensible detection of betaine by means of experimental design. Recoveries were about 93%, with RSD <5%, for both the matrices, without evidence of interfering species. The total content of betaine in extracts of various parts of plants (juice, peel, root) have been determined, obtaining concentrations in the range 3000–4000 mg/L for the juice and in the range 2–5 mg/g for the pulp and for the peel. The B. vulgaris gold species exhibited a higher concentration of betaine, compared to the red variety. Additionally, a micro extraction by packed sorbent technique and a modified quick, easy, cheap, rugged and safe (QuEChERS) procedure, were also tested and compared. Despite the lower recoveries of the latter, with respect to the ASE/SPE procedure (75–89%, RSD <1.5%), the ease of the method, which can be applied without the SPE purification procedure, can represent a positive improvement. Determination of betaine from Beta vulgaris samples. ![]()
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Affiliation(s)
- Luca Rivoira
- Department of Chemistry, University of Torino, via P. Giuria 5, 10125, Torino, Italy.,Department of Environmental Chemistry and Bioanalytics, Nicolaus Copernicus University, ul. Gagarina 7, 87-100, Toruń, Poland
| | - Sylwia Studzińska
- Department of Environmental Chemistry and Bioanalytics, Nicolaus Copernicus University, ul. Gagarina 7, 87-100, Toruń, Poland
| | - Malgorzata Szultka-Młyńska
- Department of Environmental Chemistry and Bioanalytics, Nicolaus Copernicus University, ul. Gagarina 7, 87-100, Toruń, Poland.,Center for Modern Interdisciplinary Technologies, Nicolaus Copernicus University, Wilenska 4, 87-100, Torun, Poland
| | | | - Bogusław Buszewski
- Department of Environmental Chemistry and Bioanalytics, Nicolaus Copernicus University, ul. Gagarina 7, 87-100, Toruń, Poland. .,Center for Modern Interdisciplinary Technologies, Nicolaus Copernicus University, Wilenska 4, 87-100, Torun, Poland.
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43
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Abstract
AIM Micro-SPE in pipette tips (μ-SPE-PT) with particle sorbent has never been used in small-molecule drug analysis. Methodology & results: μ-SPE-PT was used for the extraction of statins from biological materials followed by UHPLC-MS/MS. The commercial and homemade μ-SPE-PT tips filled with particle sorbent were compared. While the homemade tips enabled direct serum sample loading into the sorbent, protein precipitation (PP) had to be implemented before μ-SPE-PT procedure using commercial tips. Three μ-SPE-PT methods were developed and validated: method A: μ-SPE-PT with homemade tips; method B: PP + μ-SPE-PT with homemade tips; and method C: PP + μ-SPE-PT with commercial tips. Method A enabled a simple high-throughput approach (48 samples in 90 min) compared with methods B and C that required three-times longer time. However, PP increased the recoveries of protein-bound analytes and extracts purity in methods B and C. The matrix effects without internal standards correction for method C were significantly higher than those for the methods A and B. CONCLUSION Compared with commercial tips, homemade tips filled with particles were found to be more suitable for drug analysis. Commercial tips tested in this study were found challenging but the conditions under which they could be applicable were also defined.
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44
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Tian Y, Feng J, Bu Y, Wang X, Luo C, Sun M. In-situ hydrothermal synthesis of titanium dioxide nanorods on titanium wire for solid-phase microextraction of polycyclic aromatic hydrocarbons. Anal Bioanal Chem 2017; 409:4071-4078. [DOI: 10.1007/s00216-017-0353-3] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2017] [Revised: 03/25/2017] [Accepted: 03/30/2017] [Indexed: 01/03/2023]
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45
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Khezeli T, Daneshfar A. Development of dispersive micro-solid phase extraction based on micro and nano sorbents. Trends Analyt Chem 2017. [DOI: 10.1016/j.trac.2017.01.004] [Citation(s) in RCA: 194] [Impact Index Per Article: 27.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
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46
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Lubes G, Goodarzi M. Analysis of Volatile Compounds by Advanced Analytical Techniques and Multivariate Chemometrics. Chem Rev 2017; 117:6399-6422. [PMID: 28306239 DOI: 10.1021/acs.chemrev.6b00698] [Citation(s) in RCA: 102] [Impact Index Per Article: 14.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Smelling is one of the five senses, which plays an important role in our everyday lives. Volatile compounds are, for example, characteristics of food where some of them can be perceivable by humans because of their aroma. They have a great influence on the decision making of consumers when they choose to use a product or not. In the case where a product has an offensive and strong aroma, many consumers might not appreciate it. On the contrary, soft and fresh natural aromas definitely increase the acceptance of a given product. These properties can drastically influence the economy; thus, it has been of great importance to manufacturers that the aroma of their food product is characterized by analytical means to provide a basis for further optimization processes. A lot of research has been devoted to this domain in order to link the quality of, e.g., a food to its aroma. By knowing the aromatic profile of a food, one can understand the nature of a given product leading to developing new products, which are more acceptable by consumers. There are two ways to analyze volatiles: one is to use human senses and/or sensory instruments, and the other is based on advanced analytical techniques. This work focuses on the latter. Although requirements are simple, low-cost technology is an attractive research target in this domain; most of the data are generated with very high-resolution analytical instruments. Such data gathered based on different analytical instruments normally have broad, overlapping sensitivity profiles and require substantial data analysis. In this review, we have addressed not only the question of the application of chemometrics for aroma analysis but also of the use of different analytical instruments in this field, highlighting the research needed for future focus.
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Affiliation(s)
- Giuseppe Lubes
- Laboratorio de Química en Solución. Universidad Simón Bolívar (USB) , Apartado 89000, Caracas 1080 A, Venezuela
| | - Mohammad Goodarzi
- Department of Biochemistry, University of Texas Southwestern Medical Center , Dallas, Texas 75390, United States
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47
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Recent progress, challenges and trends in trace determination of drug analysis using molecularly imprinted solid-phase microextraction technology. Talanta 2017; 164:612-625. [DOI: 10.1016/j.talanta.2016.11.007] [Citation(s) in RCA: 105] [Impact Index Per Article: 15.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2016] [Revised: 11/03/2016] [Accepted: 11/04/2016] [Indexed: 01/11/2023]
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48
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Moein MM, El Beqqali A, Abdel-Rehim M. Bioanalytical method development and validation: Critical concepts and strategies. J Chromatogr B Analyt Technol Biomed Life Sci 2017; 1043:3-11. [DOI: 10.1016/j.jchromb.2016.09.028] [Citation(s) in RCA: 55] [Impact Index Per Article: 7.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2016] [Revised: 09/17/2016] [Accepted: 09/19/2016] [Indexed: 12/23/2022]
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49
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Mofidi Z, Norouzi P, Seidi S, Reza Ganjali M. Efficient design for in situ determination of amlodipine in whole blood samples using fast Fourier transform stripping square wave voltammetry after preconcentration by electromembrane extraction. NEW J CHEM 2017. [DOI: 10.1039/c7nj01932g] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Ultra-sensitive in situ determination of amlodipine in whole blood samples was conducted using FFT voltammetry after preconcentration by electromembrane extraction.
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Affiliation(s)
- Zahra Mofidi
- Center of Excellence in Electrochemistry
- School of Chemistry
- College of Science
- University of Tehran
- Tehran
| | - Parviz Norouzi
- Center of Excellence in Electrochemistry
- School of Chemistry
- College of Science
- University of Tehran
- Tehran
| | - Shahram Seidi
- Department of Analytical Chemistry
- Faculty of Chemistry
- K. N. Toosi University of Technology
- Tehran
- Iran
| | - Mohammad Reza Ganjali
- Center of Excellence in Electrochemistry
- School of Chemistry
- College of Science
- University of Tehran
- Tehran
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50
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El-Beqqali A, Abdel-Rehim M. Molecularly imprinted polymer-sol-gel tablet toward micro-solid phase extraction: I. Determination of methadone in human plasma utilizing liquid chromatography–tandem mass spectrometry. Anal Chim Acta 2016; 936:116-22. [DOI: 10.1016/j.aca.2016.07.001] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2016] [Revised: 06/29/2016] [Accepted: 07/02/2016] [Indexed: 12/11/2022]
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