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Bustamante-Rangel M, Del Nogal Sánchez M, García-García S, Conejo-Valverde P, Rodríguez-Gonzalo E, Pavón JLP. A new method based on dispersive solid phase microextraction with commercial MOFs coupled to LC-MS/MS for the determination of isoflavones in soy drinks. Food Chem 2024; 455:139861. [PMID: 38833860 DOI: 10.1016/j.foodchem.2024.139861] [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: 12/07/2023] [Revised: 05/13/2024] [Accepted: 05/26/2024] [Indexed: 06/06/2024]
Abstract
For the first time, a method based on dispersive solid phase microextraction (D-μSPE) using commercial metal-organic frameworks coupled to liquid chromatography-triple quadrupole tandem mass spectrometry (LC-MS/MS) has been proposed for the determination of isoflavones in soy drinks. The use of commercial sorbents simplifies the sample treatment procedure and allows their application to routine analysis. Optimization of the parameters involved in the microextraction process was carried out using a Box-Behnken experimental design. Under the optimized conditions, the limits of detection ranged between 2 and 7 μg L-1; the intra-day and inter-day precision were <10 and 20%, respectively, and the recoveries were in the range of 61-120%. No significant matrix effect was found, which allowed the use of external standard calibration method. The method was successfully applied to the determination of isoflavones in commercial soy milk samples.
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Affiliation(s)
- M Bustamante-Rangel
- Department of Analytical Chemistry, Nutrition and Food Science, Faculty of Chemical Sciences, Plaza Caídos s/n, University of Salamanca, Salamanca 37008, Spain.
| | - M Del Nogal Sánchez
- Department of Analytical Chemistry, Nutrition and Food Science, Faculty of Chemical Sciences, Plaza Caídos s/n, University of Salamanca, Salamanca 37008, Spain
| | - S García-García
- Department of Analytical Chemistry, Nutrition and Food Science, Faculty of Chemical Sciences, Plaza Caídos s/n, University of Salamanca, Salamanca 37008, Spain
| | - P Conejo-Valverde
- Department of Analytical Chemistry, Nutrition and Food Science, Faculty of Chemical Sciences, Plaza Caídos s/n, University of Salamanca, Salamanca 37008, Spain
| | - E Rodríguez-Gonzalo
- Department of Analytical Chemistry, Nutrition and Food Science, Faculty of Chemical Sciences, Plaza Caídos s/n, University of Salamanca, Salamanca 37008, Spain
| | - J L Pérez Pavón
- Department of Analytical Chemistry, Nutrition and Food Science, Faculty of Chemical Sciences, Plaza Caídos s/n, University of Salamanca, Salamanca 37008, Spain
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2
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Cardoso AT, Martins RO, Lanças FM. Advances and Applications of Hybrid Graphene-Based Materials as Sorbents for Solid Phase Microextraction Techniques. Molecules 2024; 29:3661. [PMID: 39125063 PMCID: PMC11314039 DOI: 10.3390/molecules29153661] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2024] [Revised: 07/29/2024] [Accepted: 07/30/2024] [Indexed: 08/12/2024] Open
Abstract
The advancement of traditional sample preparation techniques has brought about miniaturization systems designed to scale down conventional methods and advocate for environmentally friendly analytical approaches. Although often referred to as green analytical strategies, the effectiveness of these methods is intricately linked to the properties of the sorbent utilized. Moreover, to fully embrace implementing these methods, it is crucial to innovate and develop new sorbent or solid phases that enhance the adaptability of miniaturized techniques across various matrices and analytes. Graphene-based materials exhibit remarkable versatility and modification potential, making them ideal sorbents for miniaturized strategies due to their high surface area and functional groups. Their notable adsorption capability and alignment with green synthesis approaches, such as bio-based graphene materials, enable the use of less sorbent and the creation of biodegradable materials, enhancing their eco-friendly aspects towards green analytical practices. Therefore, this study provides an overview of different types of hybrid graphene-based materials as well as their applications in crucial miniaturized techniques, focusing on offline methodologies such as stir bar sorptive extraction (SBSE), microextraction by packed sorbent (MEPS), pipette-tip solid-phase extraction (PT-SPE), disposable pipette extraction (DPX), dispersive micro-solid-phase extraction (d-µ-SPE), and magnetic solid-phase extraction (MSPE).
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Affiliation(s)
| | | | - Fernando Mauro Lanças
- Laboratory of Chromatography, Institute of Chemistry at Sao Carlos, University of Sao Paulo, P.O. Box 780, São Carlos 13566590, Brazil
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3
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Bo C, Li Y, Liu B, Tang X, Guo S, Ma G, Li Y, Zhao W. Internal multiple interactions-adsorption and external zwitterionic polymer-exclusion of restricted access materials as adsorbent for offline and online extraction of neonicotinoid pesticides in Goji samples. J Chromatogr A 2024; 1720:464807. [PMID: 38461769 DOI: 10.1016/j.chroma.2024.464807] [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: 11/27/2023] [Revised: 03/05/2024] [Accepted: 03/06/2024] [Indexed: 03/12/2024]
Abstract
A method based on novel restricted access materials (RAMs) for the determination of neonicotinoid pesticides in Goji samples using offline and online solid phase extraction (SPE) coupled with high-performance liquid chromatography (LC). RAMs were synthesized using poly(chloromethylstyrene-co-divinylbenzene) (PVBC/DVB) microspheres as substrate, styrene (St) and n-vinylpyrrolidone (NVP) were first copolymerized on the interior to construct adsorption sites, and sulfobetaine methacrylate (SBMA) was then polymerized on the exterior to form exclusion sites via two-step surface initiated-atom transfer polymerization. The prepared PVBC/DVB@poly(St-co-NVP)@poly(SBMA) RAMs could efficiently extract neonicotinoid pesticides and automatically exclude proteins. Under the optimized conditions, the developed methods of offline (magnetic SPE and SPE column) and online extraction coupled with LC both using PVBC/DVB@poly(St-co-NVP)@poly(SBMA) RAMs as the extractant, exhibit a wide linearity, low limits of detection and limit of quantification and good inter-day and intra-day precision with satisfactory recoveries. Among these methods, online extraction coupled with LC based on novel RAMs exhibits clear advantages for the determination of neonicotinoid pesticides in Goji samples has clear advantages, such as simple operation by direct injection, short extraction times, and high accuracy with less human error.
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Affiliation(s)
- Chunmiao Bo
- School of Chemistry and Chemical Engineering, Ningxia Key Laboratory of Solar Chemical Conversion Technology, Key Laboratory for Chemical Engineering and Technology, State Ethnic Affairs Commission, North Minzu University, No. 204 Wenchang North Street, Xixia District, Yinchuan 750021, China.
| | - Yinhai Li
- School of Chemistry and Chemical Engineering, Ningxia Key Laboratory of Solar Chemical Conversion Technology, Key Laboratory for Chemical Engineering and Technology, State Ethnic Affairs Commission, North Minzu University, No. 204 Wenchang North Street, Xixia District, Yinchuan 750021, China
| | - Bin Liu
- School of Chemistry and Chemical Engineering, Ningxia Key Laboratory of Solar Chemical Conversion Technology, Key Laboratory for Chemical Engineering and Technology, State Ethnic Affairs Commission, North Minzu University, No. 204 Wenchang North Street, Xixia District, Yinchuan 750021, China
| | - Xiaofan Tang
- School of Chemistry and Chemical Engineering, Ningxia Key Laboratory of Solar Chemical Conversion Technology, Key Laboratory for Chemical Engineering and Technology, State Ethnic Affairs Commission, North Minzu University, No. 204 Wenchang North Street, Xixia District, Yinchuan 750021, China
| | - Shengwei Guo
- College of Materials Science and Engineering, North Minzu University, Yinchuan 750021, China
| | - Guijuan Ma
- NingXia Food Testing and Research Institute (Key Laboratory of Quality and Safety of Wolfberry and Wine for State Administration For Market Regulation), Yinchuan 750021, China
| | - Yan Li
- School of Chemistry and Chemical Engineering, Ningxia Key Laboratory of Solar Chemical Conversion Technology, Key Laboratory for Chemical Engineering and Technology, State Ethnic Affairs Commission, North Minzu University, No. 204 Wenchang North Street, Xixia District, Yinchuan 750021, China
| | - Weilong Zhao
- School of Chemistry and Chemical Engineering, Ningxia Key Laboratory of Solar Chemical Conversion Technology, Key Laboratory for Chemical Engineering and Technology, State Ethnic Affairs Commission, North Minzu University, No. 204 Wenchang North Street, Xixia District, Yinchuan 750021, China
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4
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Bocelli MD, Medina DAV, Lanças FM, Dos Santos-Neto ÁJ. Automated microextraction by packed sorbent of endocrine disruptors in wastewater using a high-throughput robotic platform followed by liquid chromatography-tandem mass spectrometry. Anal Bioanal Chem 2023; 415:6165-6176. [PMID: 37532864 DOI: 10.1007/s00216-023-04888-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2023] [Revised: 07/10/2023] [Accepted: 07/19/2023] [Indexed: 08/04/2023]
Abstract
An automated microextraction by packed sorbent followed by liquid chromatography-tandem mass spectrometry (MEPS-LC-MS/MS) method was developed for the determination of four endocrine disruptors-parabens, benzophenones, and synthetic phenolic antioxidants-in wastewater samples. The method utilizes a lab-made repackable MEPS device and a multi-syringe robotic platform that provides flexibility to test small quantities (2 mg) of multiple extraction phases and enables high-throughput capabilities for efficient method development. The overall performance of the MEPS procedure, including the investigation of influencing variables and the optimization of operational parameters for the robotic platform, was comprehensively studied through univariate and multivariate experiments. Under optimized conditions, the target analytes were effectively extracted from a small sample volume of 1.5 mL, with competitive detectability and analytical confidence. The limits of detection ranged from 0.15 to 0.30 ng L-1, and the intra-day and inter-day relative standard deviations were between 3 and 21%. The method's applicability was successfully demonstrated by determining methylparaben, propylparaben, butylated hydroxyanisole, and oxybenzone in wastewater samples collected from the São Carlos (SP, Brazil) river. Overall, the developed method proved to be a fast, sensitive, reliable, and environmentally friendly analytical tool for water quality monitoring.
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Affiliation(s)
- Marcio David Bocelli
- São Carlos Institute of Chemistry, University of São Paulo, São Carlos, SP, Brazil
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5
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Medina DAV, Lozada-Blanco A, Rodríguez JPG, Lanças FM, Santos-Neto ÁJ. An open-source smart fraction collector for isocratic preparative liquid chromatography. HARDWAREX 2023; 15:e00462. [PMID: 37600064 PMCID: PMC10432948 DOI: 10.1016/j.ohx.2023.e00462] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/24/2023] [Revised: 06/16/2023] [Accepted: 07/30/2023] [Indexed: 08/22/2023]
Abstract
Preparative liquid chromatography is a technique for separating complex samples or isolating pure compounds from complex extracts. It involves eluting samples through a packed column and selectively collecting or isolating the separated bands in a sequence of fractions. Depending on the column length and the sample complexity, a large number of fractions may be obtained, making fraction collection a laborious and time-consuming process. Manual fraction collection is also tedious, error-prone, less reproducible, and susceptible to contamination. Several commercial and lab-made solutions are available for automated fraction collection, but most systems do not synchronize with the instrument detector and collect fractions at fixed volumes or time intervals. We have assembled a low-cost Arduino-based smart fraction collector that can record the signal from the UV-vis detector of the chromatography instrument and enable the automated selective collection of the targeted bands. The system consists of a robot equipped with position sensors and a 3-way solenoid valve that switches the column effluent between the waste or collection positions. By proper programming, an Arduino board records the detector response and actuates the solenoid valve, the position sensors, and the stepper motors to collect the target chromatographic bands.
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6
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Sartore DM, Vargas Medina DA, Bocelli MD, Jordan-Sinisterra M, Santos-Neto ÁJ, Lanças FM. Modern automated microextraction procedures for bioanalytical, environmental, and food analyses. J Sep Sci 2023; 46:e2300215. [PMID: 37232209 DOI: 10.1002/jssc.202300215] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2023] [Revised: 05/02/2023] [Accepted: 05/04/2023] [Indexed: 05/27/2023]
Abstract
Sample preparation frequently is considered the most critical stage of the analytical workflow. It affects the analytical throughput and costs; moreover, it is the primary source of error and possible sample contamination. To increase efficiency, productivity, and reliability, while minimizing costs and environmental impacts, miniaturization and automation of sample preparation are necessary. Nowadays, several types of liquid-phase and solid-phase microextractions are available, as well as different automatization strategies. Thus, this review summarizes recent developments in automated microextractions coupled with liquid chromatography, from 2016 to 2022. Therefore, outstanding technologies and their main outcomes, as well as miniaturization and automation of sample preparation, are critically analyzed. Focus is given to main microextraction automation strategies, such as flow techniques, robotic systems, and column-switching approaches, reviewing their applications to the determination of small organic molecules in biological, environmental, and food/beverage samples.
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Affiliation(s)
- Douglas M Sartore
- Departamento de Química e Física Molecular, São Carlos Institute of Chemistry, University of São Paulo, São Carlos, Brazil
| | - Deyber A Vargas Medina
- Departamento de Química e Física Molecular, São Carlos Institute of Chemistry, University of São Paulo, São Carlos, Brazil
| | - Marcio D Bocelli
- Departamento de Química e Física Molecular, São Carlos Institute of Chemistry, University of São Paulo, São Carlos, Brazil
| | - Marcela Jordan-Sinisterra
- Departamento de Química e Física Molecular, São Carlos Institute of Chemistry, University of São Paulo, São Carlos, Brazil
| | - Álvaro J Santos-Neto
- Departamento de Química e Física Molecular, São Carlos Institute of Chemistry, University of São Paulo, São Carlos, Brazil
| | - Fernando M Lanças
- Departamento de Química e Física Molecular, São Carlos Institute of Chemistry, University of São Paulo, São Carlos, Brazil
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7
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Borsatto JVB, Lanças FM. Recent Trends in Graphene-Based Sorbents for LC Analysis of Food and Environmental Water Samples. Molecules 2023; 28:5134. [PMID: 37446796 DOI: 10.3390/molecules28135134] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2023] [Revised: 06/22/2023] [Accepted: 06/22/2023] [Indexed: 07/15/2023] Open
Abstract
This review provides an overview of recent advancements in applying graphene-based materials as sorbents for liquid chromatography (LC) analysis. Graphene-based materials are promising for analytical chemistry, including applications as sorbents in liquid chromatography. These sorbents can be functionalized to produce unique extraction or stationary phases. Additionally, graphene-based sorbents can be supported in various materials and have consequently been applied to produce various devices for sample preparation. Graphene-based sorbents are employed in diverse applications, including food and environmental LC analysis. This review summarizes the application of graphene-based materials in food and environmental water analysis in the last five years (2019 to 2023). Offline and online sample preparation methods, such as dispersive solid phase microextraction, stir bar sorptive extraction, pipette tip solid phase extraction, in-tube solid-phase microextraction, and others, are reviewed. The review also summarizes the application of the columns produced with graphene-based materials in separating food and water components and contaminants. Graphene-based materials have been reported as stationary phases for LC columns. Graphene-based stationary phases have been reported in packed, monolithic, and open tubular columns and have been used in LC and capillary electrochromatography modes.
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Affiliation(s)
- João V B Borsatto
- Laboratory of Chromatography, Institute of Chemistry at Sao Carlos, University of Sao Paulo, P.O. Box 780, São Carlos 13566-590, Brazil
| | - Fernando M Lanças
- Laboratory of Chromatography, Institute of Chemistry at Sao Carlos, University of Sao Paulo, P.O. Box 780, São Carlos 13566-590, Brazil
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8
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Zhang C, Li Y, Yuan H, Lu Z, Zhang Q, Zhao L. Methacrylate bonded covalent organic framework monolithic column online coupling with high-performance liquid chromatography for analysis of trace estrogens in food. J Chromatogr B Analyt Technol Biomed Life Sci 2023; 1222:123697. [PMID: 37059013 DOI: 10.1016/j.jchromb.2023.123697] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2023] [Revised: 03/22/2023] [Accepted: 03/29/2023] [Indexed: 04/03/2023]
Abstract
Covalent organic frameworks (COFs) are a burgeoning class of crystalline porous materials with unique properties and have been considered as a promising functional extraction medium in sample pretreatment. In this study, a new methacrylate-bonded COF (TpTh-MA) was well designed and synthesized via the aldehyde-amine condensation reaction, and the TpTh-MA was incorporated into poly (ethylene dimethacrylate) porous monolith by a facile polymerization reaction inside capillary to prepare a novel TpTh-MA monolithic column. The fabricated TpTh-MA monolithic column was characterized with scanning electron microscope, Fourier transform infrared spectrometer, X-ray diffraction, and N2 adsorption-desorption experiments. Then, the homogeneous porous structure, good permeability and high mechanical stability of TpTh-MA monolithic column was used as separation and enrichment media of capillary microextraction, which was coupled with high-performance liquid chromatography fluorescence detection for online enrichment and analysis of trace estrogens. The main experimental parameters influencing the extraction efficiency were systematically investigated. The adsorption mechanism for three estrogens was also explored and discussed based on hydrophobic effect, π-π affinity and hydrogen bonding interaction, which contributed to its strong recognition affinity to target compounds. The enrichment factors of the TpTh-MA monolithic column micro extraction method for the three estrogens were 107-114, indicating a significant preconcentration ability. Under optimal conditions, a new online analysis method was developed and exhibited good sensitivity and wide linearity range of 0.25-100.0 µg·L-1 with a coefficient of determination (R2) higher than 0.9990 and a low limit of detection with 0.05-0.07 µg·L-1. The method was successfully applied for online analysis of three estrogens of milk and shrimp samples and the recoveries obtained from spiking experiments were in range of 81.4-113% and 77.9-111%, with the relative standard deviations of 2.6-7.9% and 2.1-8.3% (n = 5), respectively. The results revealed the great potential for the application of the COFs-bonded monolithic column in the field of sample pretreatment.
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Affiliation(s)
- Chengjiang Zhang
- School of Pharmacy, Zunyi Medical University, Zunyi 563000, China.
| | - Yuhuang Li
- School of Pharmacy, Zunyi Medical University, Zunyi 563000, China
| | - Hongmei Yuan
- School of Pharmacy, Zunyi Medical University, Zunyi 563000, China
| | - Zeyi Lu
- School of Pharmacy, Zunyi Medical University, Zunyi 563000, China
| | - Qi Zhang
- School of Pharmacy, Zunyi Medical University, Zunyi 563000, China
| | - Lirong Zhao
- School of Pharmacy, Zunyi Medical University, Zunyi 563000, China
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Zheng J, Kuang Y, Zhou S, Gong X, Ouyang G. Latest Improvements and Expanding Applications of Solid-Phase Microextraction. Anal Chem 2023; 95:218-237. [PMID: 36625125 DOI: 10.1021/acs.analchem.2c03246] [Citation(s) in RCA: 31] [Impact Index Per Article: 31.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Affiliation(s)
- Juan Zheng
- Ministry of Education (MOE) Key Laboratory of Bioinorganic and Synthetic Chemistry, School of Chemistry/School of Chemistry and Chemical Engineering, Sun Yat-sen University, Guangzhou 510006, China
| | - Yixin Kuang
- Ministry of Education (MOE) Key Laboratory of Bioinorganic and Synthetic Chemistry, School of Chemistry/School of Chemistry and Chemical Engineering, Sun Yat-sen University, Guangzhou 510006, China
| | - Suxin Zhou
- Ministry of Education (MOE) Key Laboratory of Bioinorganic and Synthetic Chemistry, School of Chemistry/School of Chemistry and Chemical Engineering, Sun Yat-sen University, Guangzhou 510006, China
| | - Xinying Gong
- Ministry of Education (MOE) Key Laboratory of Bioinorganic and Synthetic Chemistry, School of Chemistry/School of Chemistry and Chemical Engineering, Sun Yat-sen University, Guangzhou 510006, China
| | - Gangfeng Ouyang
- Ministry of Education (MOE) Key Laboratory of Bioinorganic and Synthetic Chemistry, School of Chemistry/School of Chemistry and Chemical Engineering, Sun Yat-sen University, Guangzhou 510006, China
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10
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Analyzes of β-lactam antibiotics by direct injection of environmental water samples into a functionalized graphene oxide-silica packed capillary extraction column online coupled to liquid chromatography tandem mass spectrometry. TALANTA OPEN 2023. [DOI: 10.1016/j.talo.2023.100185] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023] Open
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11
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Bocelli MD, Vargas Medina DA, Rodriguez JPG, Lanças FM, Santos‐Neto ÁJ. Determination of parabens in wastewater samples via robot‐assisted dynamic single‐drop microextraction and liquid chromatography–tandem mass spectrometry. Electrophoresis 2022; 43:1567-1576. [DOI: 10.1002/elps.202100390] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/24/2021] [Revised: 04/16/2022] [Accepted: 04/25/2022] [Indexed: 11/07/2022]
Affiliation(s)
- Marcio David Bocelli
- São Carlos Institute of Chemistry University of São Paulo São Carlos São Paulo Brazil
| | | | | | - Fernando Mauro Lanças
- São Carlos Institute of Chemistry University of São Paulo São Carlos São Paulo Brazil
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12
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Lv H, Guan Q, Wang Y, Zhang X. Mechanical power driven SPME-SERS ultra-fast detection of illegal additives in aquaculture water. RSC Adv 2021; 11:12893-12901. [PMID: 35423820 PMCID: PMC8697362 DOI: 10.1039/d0ra10227j] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2020] [Accepted: 03/26/2021] [Indexed: 11/21/2022] Open
Abstract
A dual-function (extraction and detection) porous silver fiber with high enhancement effect was constructed based on a convenient electrochemical etching method. The prepared silver fiber not only had high enrichment capacity and good Surface Enhanced Raman Spectroscopy (SERS) performance but also had good laser stability and uniformity. A strategy combining mechanical power and integration of solid phase extraction (SPME) and SERS detection was used. Driven by mechanical power, the analyte malachite green (MG) was enriched on the prepared silver fiber after 40 seconds, which can realize an ultra-fast and sensitive detection with a detection limit of 8.48 × 10-9 M. At the same time, this fiber can be regenerated after being treated with NaBH4. The silver fiber can be used for the detection of MG and CV after being immersed in NaBH4 solution for a few minutes. After 5 cycles of processing, the measurement signals of the silver fiber can reach 70% of the initial signals. The mechanical power driven SPME-SERS (MPD-SPME-SERS) integrated detection method can be used to analyse aquaculture water within 1 minute with a good linear relationship.
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Affiliation(s)
- Handi Lv
- School of Chemistry and Chemical Engineering, Shandong University China
| | - Qi Guan
- School of Chemistry and Chemical Engineering, Shandong University China
| | - Ying Wang
- School of Chemistry and Chemical Engineering, Shandong University China
| | - Xiaoli Zhang
- School of Chemistry and Chemical Engineering, Shandong University China
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13
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Grecco CF, Souza ID, Queiroz MEC. Novel materials as capillary coatings for in‐tube solid‐phase microextraction for bioanalysis. J Sep Sci 2021; 44:1662-1693. [DOI: 10.1002/jssc.202001070] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2020] [Revised: 01/11/2021] [Accepted: 01/31/2021] [Indexed: 12/18/2022]
Affiliation(s)
- Caroline Fernandes Grecco
- Faculdade de Filosofia Ciências e Letras de Ribeirão Preto Departamento de Química Universidade de São Paulo São Paulo Brazil
| | - Israel Donizeti Souza
- Faculdade de Filosofia Ciências e Letras de Ribeirão Preto Departamento de Química Universidade de São Paulo São Paulo Brazil
| | - Maria Eugênia Costa Queiroz
- Faculdade de Filosofia Ciências e Letras de Ribeirão Preto Departamento de Química Universidade de São Paulo São Paulo Brazil
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14
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Davis JJ, Foster SW, Grinias JP. Low-cost and open-source strategies for chemical separations. J Chromatogr A 2021; 1638:461820. [PMID: 33453654 PMCID: PMC7870555 DOI: 10.1016/j.chroma.2020.461820] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2020] [Revised: 12/12/2020] [Accepted: 12/14/2020] [Indexed: 12/18/2022]
Abstract
In recent years, a trend toward utilizing open access resources for laboratory research has begun. Open-source design strategies for scientific hardware rely upon the use of widely available parts, especially those that can be directly printed using additive manufacturing techniques and electronic components that can be connected to low-cost microcontrollers. Open-source software eliminates the need for expensive commercial licenses and provides the opportunity to design programs for specific needs. In this review, the impact of the "open-source movement" within the field of chemical separations is described, primarily through a comprehensive look at research in this area over the past five years. Topics that are covered include general laboratory equipment, sample preparation techniques, separations-based analysis, detection strategies, electronic system control, and software for data processing. Remaining hurdles and possible opportunities for further adoption of open-source approaches in the context of these separations-related topics are also discussed.
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Affiliation(s)
- Joshua J Davis
- Department of Chemistry & Biochemistry, Rowan University, Glassboro, NJ 08028, United States
| | - Samuel W Foster
- Department of Chemistry & Biochemistry, Rowan University, Glassboro, NJ 08028, United States
| | - James P Grinias
- Department of Chemistry & Biochemistry, Rowan University, Glassboro, NJ 08028, United States.
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