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Zhang J, Chen Y, Ni M, Hou C, Qiao X, Wang T. A novel halloysite nanotubes-based hybrid monolith for in-tube solid-phase microextraction of polar cationic pesticides. Food Chem 2024; 458:140205. [PMID: 38943962 DOI: 10.1016/j.foodchem.2024.140205] [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: 10/15/2023] [Revised: 06/13/2024] [Accepted: 06/22/2024] [Indexed: 07/01/2024]
Abstract
The accurate determination of polar cationic pesticides in food poses a challenge due to their high polarity and trace levels in complex matrices. This study hypothesized that the use of halloysite nanotubes (HNTs) can significantly enhance the extraction efficiency and sensitivity of these analytes because of their rich hydroxyl groups and cation exchange sites. Therefore, we chemically incorporated HNTs with organic polymer monoliths for in-tube solid-phase microextraction (SPME). This novel hybrid monolith extended service life, improved adsorption capacity, and exhibited excellent extraction performance for polar cationic pesticides. Based on these advancements, a robust and sensitive in-tube SPME-HILIC-MS/MS method was constructed to determine trace levels of polar cationic pesticides in complex food matrices. The method achieved limits of detection of 1.9, 2.1, and 0.1 μg/kg for maleic hydrazide, amitrole, and cyromazine, respectively. The spiked recoveries in five food samples ranged from 80.2 to 100.8%, with relative standard deviations below 10.7%.
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Affiliation(s)
- Jinhan Zhang
- School of Materials and Chemical Engineering, Ningbo University of Technology, Ningbo 315211, PR China
| | - Yihui Chen
- Ningbo Customs Technology Center, Ningbo 315040, PR China.
| | - Meilin Ni
- Ningbo Customs Technology Center, Ningbo 315040, PR China
| | - Chunyan Hou
- Department of Oncology, Lombardi Comprehensive Cancer Center, Georgetown University Medical Center, Washington, DC 20057, USA
| | - Xiaoqiang Qiao
- College of Pharmaceutical Sciences, Key Laboratory of Medicinal Chemistry and Molecular Diagnosis, Ministry of Education, Hebei University, Baoding 071002, PR China
| | - Tingting Wang
- School of Materials and Chemical Engineering, Ningbo University of Technology, Ningbo 315211, PR China.
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2
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Honda L, Arismendi D, Richter P. Integration of rotating disk sorptive extraction and dispersive-solid phase extraction for the determination of estrogens and their metabolites in urine by liquid chromatography/mass spectrometry. Microchem J 2023. [DOI: 10.1016/j.microc.2022.108273] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
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3
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Yue H, He F, Zhao Z, Duan Y. Plasma-based ambient mass spectrometry: Recent progress and applications. MASS SPECTROMETRY REVIEWS 2023; 42:95-130. [PMID: 34128567 DOI: 10.1002/mas.21712] [Citation(s) in RCA: 10] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/10/2021] [Revised: 05/28/2020] [Accepted: 06/02/2020] [Indexed: 06/12/2023]
Abstract
Ambient mass spectrometry (AMS) has grown as a group of advanced analytical techniques that allow for the direct sampling and ionization of the analytes in different statuses from their native environment without or with minimum sample pretreatments. As a significant category of AMS, plasma-based AMS has gained a lot of attention due to its features that allow rapid, real-time, high-throughput, in vivo, and in situ analysis in various fields, including bioanalysis, pharmaceuticals, forensics, food safety, and mass spectrometry imaging. Tens of new methods have been developed since the introduction of the first plasma-based AMS technique direct analysis in real-time. This review first provides a comprehensive overview of the established plasma-based AMS techniques from their ion source configurations, mechanisms, and developments. Then, the progress of the representative applications in various scientific fields in the past 4 years (January 2017 to January 2021) has been summarized. Finally, we discuss the current challenges and propose the future directions of plasma-based AMS from our perspective.
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Affiliation(s)
- Hanlu Yue
- College of Life Sciences, Sichuan University, Chengdu, China
| | - Feiyao He
- College of Life Sciences, Sichuan University, Chengdu, China
| | - Zhongjun Zhao
- School of Chemical Engineering, Sichuan University, Chengdu, China
| | - Yixiang Duan
- College of Life Sciences, Sichuan University, Chengdu, China
- School of Manufacturing Science and Engineering, Sichuan University, Chengdu, China
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Gormez E, Golge O, González-Curbelo MÁ, Kabak B. Monitoring and Exposure Assessment of Fosetyl Aluminium and Other Highly Polar Pesticide Residues in Sweet Cherry. Molecules 2022; 28:molecules28010252. [PMID: 36615450 PMCID: PMC9822240 DOI: 10.3390/molecules28010252] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2022] [Revised: 12/20/2022] [Accepted: 12/20/2022] [Indexed: 12/31/2022] Open
Abstract
Cherries are popular fruits due to their health benefits, organoleptic quality, and attractive appearance. Since highly polar pesticides are of low mass and amphoteric character, and are not amenable to traditional multi-residue extraction methods, they are more commonly not included in the pesticide monitoring program. This study aims to determine twelve highly polar pesticide residues in cherry samples intended for export from Turkey. A total of 16,022 cherry samples from 2018−2020 harvests in four production areas of Turkey were analyzed using a modification of the Quick Polar Pesticides method and liquid chromatography-tandem mass spectrometry. The method was validated at two fortification levels (0.01 and 0.05 mg kg−1), and good recoveries (87.4−111.4%) and relative standard deviations (<6%) were achieved for all analytes. The limits of quantification were in the range of 1.08−2.55 μg kg−1. Overall, 28.4% of the analyzed cherry samples were detected with phosphonic acid, calculated as fosetyl aluminium (fosetyl-Al) in amounts up to 77.7 mg kg−1. For 2304 samples (14.4%), the residues exceeded the European Union maximum residue level of 2 mg kg−1. There is no reason to be concerned about long-term exposure to phosphonic acid/fosetyl-Al, and the other highly polar pesticides through the consumption of sweet cherry.
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Affiliation(s)
- Emrah Gormez
- Pia Frucht Food Control Laboratory, Alaşehir 45600, Turkey
| | - Ozgur Golge
- Department of Gastronomy and Culinary Arts, Faculty of Tourism, Alanya Alaaddin Keykubat University, Alanya 07450, Turkey
| | - Miguel Ángel González-Curbelo
- Departamento de Ciencias Básicas, Facultad de Ingeniería, Universidad EAN, Calle 79 nº 11-45, Bogotá 110221, Colombia
| | - Bulent Kabak
- Department of Food Engineering, Faculty of Engineering, Hitit University, Corum 19030, Turkey
- Correspondence:
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5
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Jang S, Seo H, Kim H, Kim H, Ahn J, Cho H, Hong S, Lee S, Na T. Development of a Quantitative Method for Detection of Multiclass Veterinary Drugs in Feed Using Modified QuPPe Extraction and LC–MS/MS. Molecules 2022; 27:molecules27144483. [PMID: 35889354 PMCID: PMC9318824 DOI: 10.3390/molecules27144483] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2022] [Revised: 07/08/2022] [Accepted: 07/12/2022] [Indexed: 12/02/2022] Open
Abstract
A method was developed for the rapid and quantitative analysis of 30 veterinary drugs belonging to 17 classes (amphenicols (1), anthelmintics (1), cephalosporins (4), coccidiostats (1), lincosamides (1), macrolide (1), nitroimidazole (1), penicillins (3), phenylhydrazines (1), polypeptides (1), pyrethrins (1), quinolones (5), sulfonamides (3), tetracycline (3), neuroleptic agents (1), triazene trypanocidal agents (1), other. (1)) in feeds. The proposed method with a modified Quick Polar Pesticides (QuPPe) sample preparation was validated for the determination of 30 veterinary drugs in feed samples by liquid chromatography triple-quadrupole mass spectrometry (LC–MS/MS). The sample was extracted with methanol containing 1% acetic acid and purified by dispersive solid-phase extraction (d-SPE) with C18. Good linearity (r2 ≥ 0.98) was observed, and the LOQ values ranged from 10 to 200 µg/kg. Average recoveries ranged from 70.8 to 118.4%, and the relative standard deviation was ≤ 18.7%. This validated method was used in the determination of 30 veterinary drugs in 142 feed samples obtained from South Korea. The results show that lincomycin was present in only one of the tested feed samples, although it was detected at a value lower than the LOQ. In conclusion, this multi-residue method can be used for screening through the detection and quantitation of residual multiclass veterinary drugs in feed samples.
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Affiliation(s)
- Sunyeong Jang
- Experiment Research Institute, National Agricultural Products Quality Management Service, Yongjeon-ro 141, Gimcheon-si 39660, Korea; (S.J.); (H.S.); (H.K.); (H.K.); (H.C.); (S.H.)
| | - Hyungju Seo
- Experiment Research Institute, National Agricultural Products Quality Management Service, Yongjeon-ro 141, Gimcheon-si 39660, Korea; (S.J.); (H.S.); (H.K.); (H.K.); (H.C.); (S.H.)
| | - Hojin Kim
- Experiment Research Institute, National Agricultural Products Quality Management Service, Yongjeon-ro 141, Gimcheon-si 39660, Korea; (S.J.); (H.S.); (H.K.); (H.K.); (H.C.); (S.H.)
| | - Hyoyoung Kim
- Experiment Research Institute, National Agricultural Products Quality Management Service, Yongjeon-ro 141, Gimcheon-si 39660, Korea; (S.J.); (H.S.); (H.K.); (H.K.); (H.C.); (S.H.)
| | - Jongsung Ahn
- National Agricultural Products Quality Management Service, Cheonnyeon-ro 1430, Yeonggwang-eup, Yeonggwang-gun 57049, Korea;
| | - Hyunjeong Cho
- Experiment Research Institute, National Agricultural Products Quality Management Service, Yongjeon-ro 141, Gimcheon-si 39660, Korea; (S.J.); (H.S.); (H.K.); (H.K.); (H.C.); (S.H.)
| | - Sunghie Hong
- Experiment Research Institute, National Agricultural Products Quality Management Service, Yongjeon-ro 141, Gimcheon-si 39660, Korea; (S.J.); (H.S.); (H.K.); (H.K.); (H.C.); (S.H.)
| | - Seunghwa Lee
- Experiment Research Institute, National Agricultural Products Quality Management Service, Yongjeon-ro 141, Gimcheon-si 39660, Korea; (S.J.); (H.S.); (H.K.); (H.K.); (H.C.); (S.H.)
- Correspondence: (S.L.); (T.N.); Tel.: +82-54-429-7819 (S.L.); +82-54-429-7813 (T.N.)
| | - Taewoong Na
- Experiment Research Institute, National Agricultural Products Quality Management Service, Yongjeon-ro 141, Gimcheon-si 39660, Korea; (S.J.); (H.S.); (H.K.); (H.K.); (H.C.); (S.H.)
- Correspondence: (S.L.); (T.N.); Tel.: +82-54-429-7819 (S.L.); +82-54-429-7813 (T.N.)
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Abstract
The extensive use of pesticides represents a risk to human health. Consequently, legal frameworks have been established to ensure food safety, including control programs for pesticide residues. In this context, the performance of analytical methods acquires special relevance. Such methods are expected to be able to determine the largest number of compounds at trace concentration levels in complex food matrices, which represents a great analytical challenge. Technical advances in mass spectrometry (MS) have led to the development of more efficient analytical methods for the determination of pesticides. This review provides an overview of current analytical strategies applied in pesticide analysis, with a special focus on MS methods. Current targeted MS methods allow the simultaneous determination of hundreds of pesticides, whereas non-targeted MS methods are now applicable to the identification of pesticide metabolites and transformation products. New trends in pesticide analysis are also presented, including approaches for the simultaneous determination of pesticide residues and other food contaminants (i.e., mega-methods), or the recent application of techniques such as ion mobility–mass spectrometry (IM–MS) for this purpose.
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Raynie DE. Quick Polar Pesticides (QuPPe): Learning from and Expanding on the Work of Others. LCGC NORTH AMERICA 2022. [DOI: 10.56530/lcgc.na.sp6865h3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
Abstract
In January, Steve Lehotay from the U.S. Department of Agriculture provided an update on the quick, easy, cheap, effective, rugged, and safe (QuEChERS) extraction method, originally developed for multiresidue pesticide analysis. Like any method, QuEChERS had some deficiencies, which were addressed with the new QuEChERSER (adding “efficient” and “robust” to the acronym) mega-method. Meanwhile, the European Union (EU) Reference Laboratories developed a new method for the multiresidue analysis of highly polar pesticides, called the quick polar pesticides (QuPPe) method. This month, we take a look at QuPPe, comparing and contrasting it with QuEChERS and noting how we can learn from previously developed methods as we strive for improvements.
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Li J, Liu J, Wan Y, Wang J, Pi F. Routine analysis of pesticides in foodstuffs: Emerging ambient ionization mass spectrometry as an alternative strategy to be on your radar. Crit Rev Food Sci Nutr 2022; 63:7341-7356. [PMID: 35229702 DOI: 10.1080/10408398.2022.2045561] [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] [Indexed: 11/03/2022]
Abstract
Pesticides residues in foodstuffs are longstanding of great concern to consumers and governments, thus reliable evaluation techniques for these residues are necessary to ensure food safety. Emerging ambient ionization mass spectrometry (AIMS), a transformative technology in the field of analytical chemistry, is becoming a promising and solid evaluation technology due to its advantages of direct, real-time and in-situ ionization on samples without complex pretreatments. To provide useful guidance on the evaluation techniques in the field of food safety, we offered a comprehensive review on the AIMS technology and introduced their novel applications for the analysis of residual pesticides in foodstuffs under different testing scenarios (i.e., quantitative, screening, imaging, high-throughput detection and rapid on-site analysis). Meanwhile, the creative combination of AIMS with high-resolution mass analyzer (e.g., orbitrap and time-of-flight) was fundamentally mentioned based on recent studies about the detection and evaluation of multi-residual pesticides between 2015 and 2021. Finally, the technical challenges and prospects associated with AIMS operation in food industry were discussed.
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Affiliation(s)
- Jingkun Li
- State Key Laboratory of Food Science and Technology, School of Food Science and Technology, Jiangnan University, Wuxi, Jiangsu, People's Republic of China
| | - Jinghan Liu
- State Key Laboratory of Food Science and Technology, School of Food Science and Technology, Jiangnan University, Wuxi, Jiangsu, People's Republic of China
| | - Yuqi Wan
- State Key Laboratory of Food Science and Technology, School of Food Science and Technology, Jiangnan University, Wuxi, Jiangsu, People's Republic of China
| | - Jiahua Wang
- College of Food Science and Engineering, Wuhan Polytechnic University, Wuhan, People's Republic of China
| | - Fuwei Pi
- State Key Laboratory of Food Science and Technology, School of Food Science and Technology, Jiangnan University, Wuxi, Jiangsu, People's Republic of China
- College of Food Science and Engineering, Wuhan Polytechnic University, Wuhan, People's Republic of China
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9
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Advances in Analysis of Contaminants in Foodstuffs on the Basis of Orbitrap Mass Spectrometry: a Review. FOOD ANAL METHOD 2021. [DOI: 10.1007/s12161-021-02168-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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10
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Gormez E, Golge O, Dincay O, Kabak B. A potential threat to black figs intended for export from Turkey: Ethephon. J Food Compost Anal 2021. [DOI: 10.1016/j.jfca.2021.103989] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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11
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Multi-frequency multi-mode ultrasound treatment for removing pesticides from lettuce (Lactuca sativa L.) and effects on product quality. Lebensm Wiss Technol 2021. [DOI: 10.1016/j.lwt.2021.111147] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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12
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Gormez E, Golge O, Kabak B. Quantification of fosetyl-aluminium/phosphonic acid and other highly polar residues in pomegranates using Quick Polar Pesticides method involving liquid chromatography-tandem mass spectrometry measurement. J Chromatogr A 2021; 1642:462038. [PMID: 33714773 DOI: 10.1016/j.chroma.2021.462038] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2021] [Revised: 02/24/2021] [Accepted: 02/27/2021] [Indexed: 11/26/2022]
Abstract
Interest in the quantification of highly polar substances in crops has noticeably increased in the last five years. This study was designed to assess quantification of six polar residues, chlorate, ethephon, fosetly-aluminium (fosetyl-Al), glyphosate, phosphonic acid and perchlorate. A total of 2513 pomegranate samples intended for export from Turkey were analysed using the Quick Polar Pesticides (QuPPe) method. The method was in-house validated with very good performance results. The limits of quantification (LOQs) for residues were much lower than the respective EU Maximum Residue Levels (MRLs). Phosphonic acid was detected in 38.5% of pomegranate samples at quantifiable concentrations, calculated as fosetyl-Al. The concentrations ranged between 0.005 and 12.9 mg kg-1. The 20% of pomegranate samples showed fosetyl-Al levels above the EU MRL of 2 mg kg-1. Other polar residues were not detected in any pomegranate samples. This is the first report about highly polar pesticides in pomegranates cultivated in Turkey.
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Affiliation(s)
- Emrah Gormez
- Pia Frucht Food Control Laboratory, Alaşehir, Manisa, Turkey
| | - Ozgur Golge
- Alanya Alaaddin Keykubat University, Faculty of Tourism, Department of Gastronomy and Culinary Arts, Alanya, Antalya, Turkey
| | - Bulent Kabak
- Hitit University, Faculty of Engineering, Department of Food Engineering, TR-19030 Corum, Turkey.
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Validation of Quick Polar Pesticides (QuPPe) Method for Determination of Eight Polar Pesticides in Cherries by LC-MS/MS. FOOD ANAL METHOD 2021. [DOI: 10.1007/s12161-021-01966-w] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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14
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Beneito-Cambra M, Gilbert-López B, Moreno-González D, Bouza M, Franzke J, García-Reyes JF, Molina-Díaz A. Ambient (desorption/ionization) mass spectrometry methods for pesticide testing in food: a review. ANALYTICAL METHODS : ADVANCING METHODS AND APPLICATIONS 2020; 12:4831-4852. [PMID: 33000770 DOI: 10.1039/d0ay01474e] [Citation(s) in RCA: 28] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/19/2023]
Abstract
Ambient mass spectrometry refers to the family of techniques that allows ions to be generated from condensed phase samples under ambient conditions and then, collected and analysed by mass spectrometry. One of their key advantages relies on their ability to allow the analysis of samples with minimal to no sample workup. This feature maps well to the requirements of food safety testing, in particular, those related to the fast determination of pesticide residues in foods. This review discusses the application of different ambient ionization methods for the qualitative and (semi)quantitative determination of pesticides in foods, with the focus on different specific methods used and their ionization mechanisms. More popular techniques used are those commercially available including desorption electrospray ionization (DESI-MS), direct analysis on real time (DART-MS), paper spray (PS-MS) and low-temperature plasma (LTP-MS). Several applications described with ambient MS have reported limits of quantitation approaching those of reference methods, typically based on LC-MS and generic sample extraction procedures. Some of them have been combined with portable mass spectrometers thus allowing "in situ" analysis. In addition, these techniques have the ability to map surfaces (ambient MS imaging) to unravel the distribution of agrochemicals on crops.
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Affiliation(s)
- Miriam Beneito-Cambra
- Analytical Chemistry Research Group (FQM-323), Department of Physical and Analytical Chemistry, University of Jaen, 23071 Jaén, Spain.
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Direct analysis in real time-mass spectrometry for rapid quantification of five anti-arrhythmic drugs in human serum: application to therapeutic drug monitoring. Sci Rep 2020; 10:15550. [PMID: 32968164 PMCID: PMC7511339 DOI: 10.1038/s41598-020-72490-w] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2020] [Accepted: 08/28/2020] [Indexed: 02/06/2023] Open
Abstract
Therapeutic drug monitoring (TDM) is necessary for the optimal administration of anti-arrhythmic drugs in the treatment of heart arrhythmia. The present study aimed to develop and validate a direct analysis in real time tandem mass spectrometry (DART–MS/MS) method for the rapid and simultaneous determination of five anti-arrhythmic drugs (metoprolol, diltiazem, amiodarone, propafenone, and verapamil) and one metabolite (5-hydroxy(OH)-propafenone) in human serum. After the addition of isotope-labeled internal standards and protein precipitation with acetonitrile, anti-arrhythmic drugs were ionized by DART in positive mode followed by multiple reaction monitoring (MRM) detection. The use of DART–MS/MS avoided the need for chromatographic separation and allowed rapid and ultrahigh throughput analysis of anti-arrhythmic drugs in a total run time of 30 s per sample. The DART–MS/MS method yielded satisfactory linearity (R2 ≥ 0.9906), accuracy (86.1–109.9%), and precision (≤ 14.3%) with minimal effect of biological matrixes. The method was successfully applied to analyzing 30 clinical TDM samples. The relative error (RE) of the concentrations obtained by DART–MS/MS and liquid chromatography-tandem mass spectrometry (LC–MS/MS) was within ± 13%. This work highlights the potential usefulness of DART for the rapid quantitative analysis of anti-arrhythmic drugs in human serum and gives rapid feedback in the clinical TDM practices.
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Zhou W, Yang Z, Huang S, Fang Z, Chen B, Ma M. Rapid quantitative analysis of ginkgo flavonoids using paper spray mass spectrometry. J Pharm Biomed Anal 2019; 171:158-163. [PMID: 30999226 DOI: 10.1016/j.jpba.2019.04.018] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2018] [Revised: 04/07/2019] [Accepted: 04/08/2019] [Indexed: 12/20/2022]
Abstract
In this work, a method for the rapid and reliable analysis of ginkgo flavonoids was developed by using paper spray mass spectrometry (PS-MS) assisted by microwave-assisted hydrolysis (MAH). Kaempferol-D4, quercetin-D5, and isorhamnetin-D3 were used as internal standards (IS). Samples analyses were completed by simply treating with extraction, MAH, dilution, and quantitative analysis by PS-MS. Because of the absence of HPLC separation, the PS-MS analysis time was less than 20 s. The linear ranges of kaempferol, quercetin and isorhamnetin were 1.7-86, 1.7-86, and 1.3-68 mg/L, respectively, with linear coefficients (R2) of 0.9993-0.9998. The detection limits (LODs) were 0.1, 0.1, and 0.2 mg/L. Limits of quantifications (LOQs) were all less than 0.6 mg/L. Compared with HPLC results, there are no obvious differences. It can be concluded that the PS-MS method with isotope IS is accurate for the rapid analysis of ginkgo flavonoids in extracts and related products.
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Affiliation(s)
- Wei Zhou
- Key Laboratory of Phytochemical R&D of Hunan Province and Key Laboratory of Chemical Biology & Traditional Chinese Medicine Research, Ministry of Education, Hunan Normal University, Changsha 410081, PR China
| | - Zihui Yang
- Key Laboratory of Phytochemical R&D of Hunan Province and Key Laboratory of Chemical Biology & Traditional Chinese Medicine Research, Ministry of Education, Hunan Normal University, Changsha 410081, PR China
| | - Si Huang
- Key Laboratory of Phytochemical R&D of Hunan Province and Key Laboratory of Chemical Biology & Traditional Chinese Medicine Research, Ministry of Education, Hunan Normal University, Changsha 410081, PR China
| | - Zhengfa Fang
- Key Laboratory of Phytochemical R&D of Hunan Province and Key Laboratory of Chemical Biology & Traditional Chinese Medicine Research, Ministry of Education, Hunan Normal University, Changsha 410081, PR China
| | - Bo Chen
- Key Laboratory of Phytochemical R&D of Hunan Province and Key Laboratory of Chemical Biology & Traditional Chinese Medicine Research, Ministry of Education, Hunan Normal University, Changsha 410081, PR China.
| | - Ming Ma
- Key Laboratory of Phytochemical R&D of Hunan Province and Key Laboratory of Chemical Biology & Traditional Chinese Medicine Research, Ministry of Education, Hunan Normal University, Changsha 410081, PR China
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17
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Francesquett JZ, Rizzetti TM, Cadaval TRS, Prestes OD, Adaime MB, Zanella R. Simultaneous determination of the quaternary ammonium pesticides paraquat, diquat, chlormequat, and mepiquat in barley and wheat using a modified quick polar pesticides method, diluted standard addition calibration and hydrophilic interaction liquid chromatography coupled to tandem mass spectrometry. J Chromatogr A 2018; 1592:101-111. [PMID: 30638711 DOI: 10.1016/j.chroma.2018.12.060] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2018] [Revised: 12/24/2018] [Accepted: 12/27/2018] [Indexed: 10/27/2022]
Abstract
In this study, a modified Quick Polar Pesticides (QuPPe) method, optimized by a central composite design, was developed to determine quaternary ammonium pesticides (QUATs) residues in barley and wheat by ultra-high-performance liquid chromatographic tandem mass spectrometry (UHPLC-MS/MS) using a hydrophilic interaction chromatography (HILIC) column. Considering the high polarity of these compounds, special conditions of sample preparation and analysis are required. Different mobile phases, extraction procedure and clean-up were evaluated. An isocratic elution with aqueous solution of ammonium formate 60 mmol L-1 (pH 3.7) and acetonitrile, 40:60 (v/v), was selected. Water and acidified methanol as extraction solvent, without heating, and a clean-up with dichloromethane, chitosan and acetonitrile presented good results. The validated method presented satisfactory selectivity, linearity, matrix effect, trueness and precision, providing recoveries from 93 to 110% with RSD < 13% for barley, and 70 to 115% with RSD < 18% for wheat. The complexity of these matrices requires the calibration in matrix and the diluted standard addition calibration (DSAC) procedure has been shown to be an excellent option to compensate for the matrix effect and the losses of the analytes in the extraction. Real samples of barley and wheat were analyzed and 60% presented concentrations of paraquat above the maximum limits allowed by the European Union. The modified QuPPe method combined with DSAC and HILIC-UHPLC-MS/MS demonstrated to be an effective approach to determine QUATs in barley and wheat, and is a good alternative for routine analysis. The use of the biosorbent chitosan is effective, low cost and more ecological when compared to others conventional sorbents.
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Affiliation(s)
- Janice Z Francesquett
- Laboratory of Pesticide Residue Analysis (LARP), Chemistry Department, Federal University of Santa Maria (UFSM), 97105-900, Santa Maria, RS, Brazil
| | - Tiele M Rizzetti
- Laboratory of Pesticide Residue Analysis (LARP), Chemistry Department, Federal University of Santa Maria (UFSM), 97105-900, Santa Maria, RS, Brazil
| | - Tito R S Cadaval
- School of Chemistry and Food, Federal University of Rio Grande (FURG), Rio Grande, RS, Brazil
| | - Osmar D Prestes
- Laboratory of Pesticide Residue Analysis (LARP), Chemistry Department, Federal University of Santa Maria (UFSM), 97105-900, Santa Maria, RS, Brazil
| | - Martha B Adaime
- Laboratory of Pesticide Residue Analysis (LARP), Chemistry Department, Federal University of Santa Maria (UFSM), 97105-900, Santa Maria, RS, Brazil
| | - Renato Zanella
- Laboratory of Pesticide Residue Analysis (LARP), Chemistry Department, Federal University of Santa Maria (UFSM), 97105-900, Santa Maria, RS, Brazil.
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Lenninger M, Aguilo-Aguayo N, Bechtold T. Quantification of triethanolamine through measurement of catalytic current in alkaline iron-d-gluconate solution. J Electroanal Chem (Lausanne) 2018. [DOI: 10.1016/j.jelechem.2018.10.026] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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19
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Chamkasem N. Rapid determination of polar pesticides and plant growth regulators in fruits and vegetables by liquid chromatography/tandem mass spectrometry. JOURNAL OF ENVIRONMENTAL SCIENCE AND HEALTH. PART. B, PESTICIDES, FOOD CONTAMINANTS, AND AGRICULTURAL WASTES 2018; 53:622-631. [PMID: 29787687 DOI: 10.1080/03601234.2018.1473977] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/22/2018] [Accepted: 04/17/2018] [Indexed: 06/08/2023]
Abstract
A simple high-throughput liquid chromatography/tandem mass spectrometry (LC-MS/MS) multiresidue analysis method was developed for the simultaneous determination of polar pesticides, plant growth regulators and other polar compounds. These included amitrole, chlormequat, mepiquat, cyromazine, ETU, PTU, perchlorate, and daminozide using a mixed-mode column. A 10 g test portion was shaken with acidified methanol for 10 min. After centrifugation, the sample extract was injected and analyzed within 11 min by LC-MS-MS. This column eliminated the need for derivatization or the use of ion paring reagent. Two MS-MS transitions were monitored in the method for each target compound to achieve true positive identification. Eight isotopically-labeled internal standards corresponding to each analyte were used to correct for matrix suppression effect and/or instrument signal drift. The average recovery for all analytes at 20, 40, and 250 ng/g (n = 6) ranged from 73-136%, with a relative standard deviation of ≤ 20%.
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Affiliation(s)
- Narong Chamkasem
- a Southeast Food and Feed Laboratory (SFFL), U.S. Food and Drug Administration , Atlanta , Georgia , USA
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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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