1
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Chen D, Wang B, Xu XL, Zhang MY, Bu XM, Yang S, Luo Y, Xu X. Kapok fiber-supported liquid extraction for convenient oil samples preparations: A feasibility and proof-of-concept study. J Chromatogr A 2022; 1681:463480. [PMID: 36095972 DOI: 10.1016/j.chroma.2022.463480] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2022] [Revised: 08/26/2022] [Accepted: 09/04/2022] [Indexed: 11/29/2022]
Abstract
In this study, a novel kapok fiber-supported liquid extraction (KF-SLE) method was developed for conveniently extracting analytes from oil samples. Natural kapok fiber without any pretreatment was directly used as an oil support medium. The extraction device was conveniently constructed by directly packing some kapok fibers into a syringe tube. Due to the fibrous property of the kapok fiber, no filter plate was needed. The cost of a KF-SLE device was as low as 0.5 CNY. The KF-SLE process was conveniently conducted using a simple three-step protocol: (1) the oil sample without any pretreatment including dilution was added directedly; (2) then, the oil-immiscible extractant was added; (3) after waiting a certain time for static extraction, the extractant was eluted out by pressing the kapok fibers with the syringe plunger. The extractant could be directly transferred for subsequent instrumental detection. For the feasibility and proof-of-concept study, the method was applied to quantify four synthetic flavor chemicals in edible oils. Satisfied quantification results were obtained with the correlation coefficient (R2) being greater than 0.996, the relative recoveries ranging from 92.90% to 107.53% and intra- and inter-day RSDs being less than 7.56%. All in all, for the first time, the SLE technique was expanded to process oil samples and the method has the characteristics of low cost, environmental friendliness, high sample processing throughput and ease of automation, offering a promising approach for edible oil sample preparations.
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Affiliation(s)
- Di Chen
- Key Laboratory of Targeting Therapy and Diagnosis for Critical Diseases of Henan Province, School of Pharmaceutical Sciences, Zhengzhou University, Zhengzhou, Henan, China
| | - Bin Wang
- Key Laboratory of Targeting Therapy and Diagnosis for Critical Diseases of Henan Province, School of Pharmaceutical Sciences, Zhengzhou University, Zhengzhou, Henan, China
| | - Xin-Li Xu
- Key Laboratory of Targeting Therapy and Diagnosis for Critical Diseases of Henan Province, School of Pharmaceutical Sciences, Zhengzhou University, Zhengzhou, Henan, China
| | - Man-Yu Zhang
- Key Laboratory of Targeting Therapy and Diagnosis for Critical Diseases of Henan Province, School of Pharmaceutical Sciences, Zhengzhou University, Zhengzhou, Henan, China
| | - Xin-Miao Bu
- Key Laboratory of Targeting Therapy and Diagnosis for Critical Diseases of Henan Province, School of Pharmaceutical Sciences, Zhengzhou University, Zhengzhou, Henan, China
| | - Sen Yang
- Key Laboratory of Targeting Therapy and Diagnosis for Critical Diseases of Henan Province, School of Pharmaceutical Sciences, Zhengzhou University, Zhengzhou, Henan, China
| | - Yanbo Luo
- China National Tobacco Quality Supervision and Test Center, Zhengzhou, Henan, China.
| | - Xia Xu
- Key Laboratory of Targeting Therapy and Diagnosis for Critical Diseases of Henan Province, School of Pharmaceutical Sciences, Zhengzhou University, Zhengzhou, Henan, China.
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2
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Arbouche N, Raul JS, Kintz P. Développement et validation d’une méthode de criblage et de dosage de 13 antidiabétiques oraux dans le sang par LC-MS/MS : application à des cas post-mortem. TOXICOLOGIE ANALYTIQUE ET CLINIQUE 2022. [DOI: 10.1016/j.toxac.2022.03.006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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3
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Chaker J, Kristensen DM, Halldorsson TI, Olsen SF, Monfort C, Chevrier C, Jégou B, David A. Comprehensive Evaluation of Blood Plasma and Serum Sample Preparations for HRMS-Based Chemical Exposomics: Overlaps and Specificities. Anal Chem 2022; 94:866-874. [DOI: 10.1021/acs.analchem.1c03638] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Jade Chaker
- Univ Rennes, Inserm, EHESP, Irset (Institut de recherche en santé, environnement et travail) - UMR_S 1085, F-35000 Rennes, France
| | - David Møbjerg Kristensen
- Univ Rennes, Inserm, EHESP, Irset (Institut de recherche en santé, environnement et travail) - UMR_S 1085, F-35000 Rennes, France
- Department of Neurology, Danish Headache Center, Rigshospitalet, University of Copenhagen, Copenhagen 1165, Denmark
| | - Thorhallur Ingi Halldorsson
- Center for Fetal Programming, Department of Epidemiology Research, Statens Serum Institut, Copenhagen 2300, Denmark
- The Unit for Nutrition Research, Faculty of Food Science and Nutrition, School of Health Sciences, University of Iceland, Reykjavik 101, Iceland
| | - Sjurdur Frodi Olsen
- Center for Fetal Programming, Department of Epidemiology Research, Statens Serum Institut, Copenhagen 2300, Denmark
- Department of Nutrition, Harvard T. H. Chan School of Public Health, Boston, Massachusetts 02115, United States
| | - Christine Monfort
- Univ Rennes, Inserm, EHESP, Irset (Institut de recherche en santé, environnement et travail) - UMR_S 1085, F-35000 Rennes, France
| | - Cécile Chevrier
- Univ Rennes, Inserm, EHESP, Irset (Institut de recherche en santé, environnement et travail) - UMR_S 1085, F-35000 Rennes, France
| | - Bernard Jégou
- Univ Rennes, Inserm, EHESP, Irset (Institut de recherche en santé, environnement et travail) - UMR_S 1085, F-35000 Rennes, France
| | - Arthur David
- Univ Rennes, Inserm, EHESP, Irset (Institut de recherche en santé, environnement et travail) - UMR_S 1085, F-35000 Rennes, France
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4
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Liu Y, Meng X, Zhang Y, Zhang L, Shan Y, Gu J, Sun D. High-throughput bioanalysis of sitagliptin in plasma using direct analysis in real time mass spectrometry and its application in the pharmacokinetic study thereof. J Sep Sci 2021; 45:631-637. [PMID: 34709732 DOI: 10.1002/jssc.202100461] [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: 06/11/2021] [Revised: 10/08/2021] [Accepted: 10/21/2021] [Indexed: 11/10/2022]
Abstract
Sitagliptin is a dipeptidyl peptidase-IV inhibitor for the treatment of type 2 diabetes mellitus. In the present study, a sensitive and high-throughput quantitative method based on the direct analysis in real time tandem mass spectrometry has been developed and validated for the bioanalysis of sitagliptin in rat plasma without chromatographic separation. Sitagliptin and its internal standard retagliptin were detected in positive ion mode by multiple reaction monitoring transitions at m/z 408.2→235.0 and 465.2→260.1, respectively. The method includes a simple solid-phase extraction sample preparation procedure, through which appropriate and reproducible analytical results within the linear concentration range of 20-2000 ng/mL have been achieved. The intra- and interday precisions were <10.6% and the accuracies were ranging from -8.17 to 2.60%. This method has been successfully applied to the pharmacokinetic study of sitagliptin after single intravenous administration in rats. This approach shows considerable promise of direct analysis in real time tandem mass spectrometry method in the high-throughput bioanalysis.
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Affiliation(s)
- Yingze Liu
- School of Pharmaceutical Sciences, Jilin University, Changchun, P. R. China.,Beijing Institute of Drug Metabolism, Beijing, P. R. China
| | - Xiangjun Meng
- Research Center for Drug Metabolism, School of Life Sciences, Jilin University, Changchun, P. R. China
| | - Yuyao Zhang
- Research Center for Drug Metabolism, School of Life Sciences, Jilin University, Changchun, P. R. China
| | - Linge Zhang
- Research Center for Drug Metabolism, School of Life Sciences, Jilin University, Changchun, P. R. China
| | - Yuqin Shan
- Research Center for Drug Metabolism, School of Life Sciences, Jilin University, Changchun, P. R. China
| | - Jingkai Gu
- Research Center for Drug Metabolism, School of Life Sciences, Jilin University, Changchun, P. R. China.,Beijing Institute of Drug Metabolism, Beijing, P. R. China
| | - Dong Sun
- Research Center for Drug Metabolism, School of Life Sciences, Jilin University, Changchun, P. R. China.,Key Laboratory of Molecular Pharmacology and Drug Evaluation, Yantai University, Yantai, P. R. China
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5
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Ma W, Gao X, Guo H, Chen W. Determination of 13 antidepressants in blood by UPLC-MS/MS with supported liquid extraction pretreatment. J Chromatogr B Analyt Technol Biomed Life Sci 2021; 1171:122608. [PMID: 33756452 DOI: 10.1016/j.jchromb.2021.122608] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2020] [Revised: 02/14/2021] [Accepted: 02/18/2021] [Indexed: 11/28/2022]
Abstract
Antidepressants are widely used nowadays. Due to the potential detrimental consequences and involvement in forensic cases, therapeutic drug monitoring of antidepressants is desired. Herein we report a method for sensitive determination of 13 commonly used antidepressants in blood. An ultra-high performance liquid chromatography-tandem mass spectrometry (UPLC-MS/MS) method with supported liquid extraction (SLE) was developed for analysis of imipramine, desipramine, fluoxetine, norfluoxetine, paroxetine, maprotiline, sertraline, citalopram, clomipramine, trazodone, doxepin, clozapine and amitriptyline in this study. The limits of detection (LODs) are in the range of 0.0003-0.003 ng/mL, which are lower than other reported methods by several orders of magnitude. The linear ranges are 0.01-200 ng/mL for norfluoxetine, paroxetine and doxepin, while the linear ranges are 0.001-200 ng/mL for the rest antidepressants. The correlation coefficients are over 0.99. Extraction recoveries (ER) ranging in 82.4-101.5% were obtained for the target analytes. The intra-day relative standard deviations (RSDs) range in 4.5-10.3% and inter-day RSDs range in 5.1-12.7%. Reasonable values of matrix effect (ME) ranging in 82.5-110.4% were obtained for quality control samples. The present methodology was used for the analysis of antidepressants in real cases and is expected to have a wide usage for analysis of antidepressants in biomedical area and forensic practice.
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Affiliation(s)
- Weiping Ma
- School of Stomatology and Medicine, Foshan University, Foshan 528000, Guangdong, China
| | - Xue Gao
- College of Environment and Resources, Chongqing Technology and Business University, Chongqing 400067, China
| | - Hao Guo
- Chongqing Institute of Forensic Sciences, Chongqing 400021, China.
| | - Weiming Chen
- School of Pharmaceutical Sciences, Gannan Medical University, Ganzhou 341000, Jiangxi, China.
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6
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Agrawal K, Voggu RR, Pisek D, Becht S, Chudnovskiy R, Dufour GM, Arfvidsson C, Thomas CE. A validated surrogate analyte LC-MS/MS assay for quantification of endogenous cortisol in human whole blood. J Pharm Biomed Anal 2021; 198:114028. [PMID: 33756381 DOI: 10.1016/j.jpba.2021.114028] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2020] [Revised: 03/10/2021] [Accepted: 03/12/2021] [Indexed: 11/17/2022]
Abstract
Cortisol is a steroid hormone that is frequently measured as a marker of stress, inflammation, and immune function. While commonly analyzed in saliva, hair, blood plasma and urine, a recent trend towards whole blood-based at-home collection devices has emerged, which necessitates development of more sensitive assays for cortisol in whole blood. To support the implementation of a patient-centric sampling approach in a drug development program, a fit-for-purpose surrogate analyte-based liquid chromatography-tandem mass spectrometry (LC-MS/MS) assay for cortisol in whole blood was developed using 13C3-cortisol as a surrogate analyte and cortisol-d6 as the internal standard. The surrogate analyte approach was chosen due to a lack of available cortisol-free whole blood and the absence of appropriately representative surrogate matrices. Samples were prepared using supported liquid extraction, and the LC-MS/MS analysis consisted of a 4.00 min analytical run. The method demonstrated linearity between 0.500 and 500 ng/mL of 13C3-cortisol, and accuracy, precision and robustness were all acceptable per current regulatory guidance for bioanalytical method validation of chromatographic assays for cortisol- and 13C3-cortisol-based quality control (QC) samples when quantified against a 13C3-cortisol calibration curve. The acceptable robustness of cortisol-based QCs when quantified against a 13C3-cortisol-based calibration curve also suggests parallelism between the analytes. These results indicate a viable surrogate analyte method, that is fit-for-purpose to analyze whole blood cortisol levels using a surrogate analyte LC-MS/MS approach. Evaluation of patient samples showed very promising comparability between whole blood and plasma cortisol concentrations, suggesting that whole blood could be used in place of or in addition to a plasma-based sampling protocol in clinical trials analyzing cortisol. Overall, this method presents a novel tool that is a first step in supporting the trend towards sample miniaturization and at-home sample collection, and may be readily used in clinical and diagnostic settings.
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Affiliation(s)
- Karan Agrawal
- Covance Laboratories, Inc., 8211 SciCor Drive, Indianapolis, IN, 46214, USA.
| | - Ramakrishna R Voggu
- Covance Laboratories, Inc., 8211 SciCor Drive, Indianapolis, IN, 46214, USA.
| | - Daniel Pisek
- Covance Laboratories, Inc., 8211 SciCor Drive, Indianapolis, IN, 46214, USA.
| | - Steven Becht
- Covance Laboratories, Inc., 3301 Kinsman Blvd, Madison, WI, 53704, USA.
| | - Ross Chudnovskiy
- Covance Laboratories, Inc., 8211 SciCor Drive, Indianapolis, IN, 46214, USA.
| | | | - Cecilia Arfvidsson
- Clinical Pharmacology and Safety Sciences, Quantitative Pharmacology Clinical Pharmacology, AstraZeneca R&D, Gothenburg, Sweden.
| | - C Eric Thomas
- Covance Laboratories, Inc., 8211 SciCor Drive, Indianapolis, IN, 46214, USA.
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7
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Scherf-Clavel O, Kinzig M, Stoffel MS, Fuhr U, Sörgel F. A HILIC-MS/MS assay for the quantification of metformin and sitagliptin in human plasma and urine: A tool for studying drug transporter perturbation. J Pharm Biomed Anal 2019; 175:112754. [PMID: 31336285 DOI: 10.1016/j.jpba.2019.07.002] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2019] [Revised: 06/28/2019] [Accepted: 07/01/2019] [Indexed: 12/19/2022]
Abstract
This article describes the development and validation of a HILIC-MS/MS method for the simultaneous quantification of metformin and sitagliptin from human plasma and urine. The presented method uses quick sample preparation and fast chromatography allowing for high sample throughput. The quantification is performed using multi-reaction monitoring and ESI positive mode with stable isotope labelled internal standards for both metformin and sitagliptin. Excellent linearity in the selected calibrations ranges, low inter-day variability (CV% <6.7%), and high accuracy (95.5-104.1%) were obtained. Adequate retention was attained for both analytes by hydrophilic interaction liquid chromatography using a plain silica column in combination with a mobile phase composed of ammonium formate, acetonitrile, formic acid and water in gradient separation mode.
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Affiliation(s)
- Oliver Scherf-Clavel
- IMBP - Institute for Biomedical and Pharmaceutical Research, Paul-Ehrlich-Straße 19, D-90562, Nürnberg-Heroldsberg, Germany
| | - Martina Kinzig
- IMBP - Institute for Biomedical and Pharmaceutical Research, Paul-Ehrlich-Straße 19, D-90562, Nürnberg-Heroldsberg, Germany
| | - Marc S Stoffel
- University of Cologne, Faculty of Medicine and University Hospital Cologne, Center for Pharmacology, Department I of Pharmacology, Gleueler Str. 24, D-50931, Cologne, Germany
| | - Uwe Fuhr
- University of Cologne, Faculty of Medicine and University Hospital Cologne, Center for Pharmacology, Department I of Pharmacology, Gleueler Str. 24, D-50931, Cologne, Germany
| | - Fritz Sörgel
- IMBP - Institute for Biomedical and Pharmaceutical Research, Paul-Ehrlich-Straße 19, D-90562, Nürnberg-Heroldsberg, Germany; University of Duisburg-Essen, Faculty of Medicine,Institute of Pharmacology, Hufelandstraße 55, D-45122, Essen, Germany.
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8
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Qiu X, Xie S, Ye L, Xu RA. UPLC-MS/MS method for the quantification of ertugliflozin and sitagliptin in rat plasma. Anal Biochem 2018; 567:112-116. [PMID: 30578763 DOI: 10.1016/j.ab.2018.12.016] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2018] [Revised: 12/18/2018] [Accepted: 12/18/2018] [Indexed: 12/17/2022]
Abstract
In the present study, an ultra-performance liquid chromatography tandem mass spectrometry (UPLC-MS/MS) approach was designed to concurrently measure the levels of ertugliflozin and sitagliptin in rat plasma with diazepam as the internal standard (IS). Acetonitrile-based protein precipitation was applied for sample preparation, then analytes (ertugliflozin and sitagliptin) were subjected to gradient elution chromatography with a mobile phase composed of acetonitrile (A) and 0.1% formic acid in water (B). Ertugliflozin was monitored by m/z 437.2 → 329.0 transition for quantification and m/z 437.2 → 207.5 transition for qualification, and sitagliptin was determined by m/z 408.2 → 235.0 transition for quantification and m/z 408.2 → 174.0 transition for qualification by multiple reaction monitoring (MRM) in positive ion electrospray ionization (ESI) source. When the concentration of ertugliflozin ranged from 1 to 1000 ng/mL and sitagliptin ranged from 2 to 2500 ng/mL, the method exhibited good linearity. For both ertugliflozin and sitagliptin, the intra- and inter-day precision were determined with the values of 1.6-10.9% and 0.8-13.3%, respectively; and the accuracy ranged from -5.7% to 14.6%. Matrix effect, extraction recovery, and stability data were in line with the stipulated FDA guidelines for validating a bioanalytical method. The validity of the designed method was confirmed through the pharmacokinetic experiments.
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Affiliation(s)
- Xiangjun Qiu
- Medical College of Henan University of Science and Technology, 471003, Luoyang, PR China
| | - Saili Xie
- The First Affiliated Hospital of Wenzhou Medical University, 325000, Wenzhou, PR China
| | - Lei Ye
- The First Affiliated Hospital of Wenzhou Medical University, 325000, Wenzhou, PR China.
| | - Ren-Ai Xu
- The First Affiliated Hospital of Wenzhou Medical University, 325000, Wenzhou, PR China.
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9
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Al-Hashimi NN, Shahin RO, Al-Hashimi AN, Al Ajeal AM, Tahtamouni LH, Basheer C. Cetyl-alcohol-reinforced hollow fiber solid/liquid-phase microextraction and HPLC-DAD analysis of ezetimibe and simvastatin in human plasma and urine. Biomed Chromatogr 2018; 33:e4410. [PMID: 30315647 DOI: 10.1002/bmc.4410] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2018] [Revised: 09/26/2018] [Accepted: 10/09/2018] [Indexed: 11/11/2022]
Abstract
A new cetyl-alcohol-reinforced hollow fiber solid/liquid-phase microextraction (CA-HF-SLPME) followed by high-performance liquid chromatography-diode array detection (HPLC-DAD) method was developed for simultaneous determination of ezetimibe and simvastatin in human plasma and urine samples. To prepare the CA-HF-SLPME device, the cetyl-alcohol was immobilized into the pores of a 2.5 cm hollow fiber micro-tube and the lumen of the micro-tube was filled with 1-octanol with the two ends sealed. Afterwards, the prepared device was introduced into 10 mL of the sample solution containing the analytes with agitation. Under optimized conditions, calibration curves plotted in spiked plasma and urine samples were linear in the ranges of 0.363-25/0.49-25 μg L-1 for ezetimibe/simvastatin and 0.193-25/0.312-25 μg L-1 for ezetimibe/simvastatin in plasma and urine samples, respectively. The limit of detection was 0.109/0.174 μg L-1 for ezetimibe/simvastatin in plasma and 0.058/0.093 μg L-1 for ezetimibe/simvastatin in urine. As a potential application, the proposed method was applied to determine the concentration of selected analytes in patient plasma and urine samples after medication and satisfactory results were achieved. In comparison with reference methods, the CA-HF-SLPME-HPLC-DAD method demonstrates considerable potential in the biopharmaceutical analysis of selected drugs.
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Affiliation(s)
- Nabil N Al-Hashimi
- Faculty of Pharmaceutical Sciences, Department of Pharmaceutical Chemistry, The Hashemite University, Al-Zarqa, Jordan
| | - Rand O Shahin
- Faculty of Pharmaceutical Sciences, Department of Pharmaceutical Chemistry, The Hashemite University, Al-Zarqa, Jordan
| | - Aqeel N Al-Hashimi
- University College of Science, Department of Biochemistry, Osmania University, Hyderabad, India
| | - Ajeal M Al Ajeal
- Faculty of Medicine, Department of Internal and Family Medicine, The Hashemite University, Al-Zarqa, Jordan
| | - Lubna H Tahtamouni
- Faculty of Science, Department of Biology and Biotechnology, The Hashemite University, Al-Zarqa, Jordan
| | - Chanbasha Basheer
- College of Sciences, Department of Chemistry, King Fahd University of Petroleum and Minerals, Dhahran, Kingdom of Saudi Arabia
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10
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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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Gao X, Tan Y, Guo H. Simultaneous determination of amitraz, chlordimeform, formetanate and their main metabolites in human urine by high performance liquid chromatography-tandem mass spectrometry. J Chromatogr B Analyt Technol Biomed Life Sci 2017; 1052:27-33. [PMID: 28346886 DOI: 10.1016/j.jchromb.2017.03.004] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/24/2016] [Revised: 02/26/2017] [Accepted: 03/08/2017] [Indexed: 10/20/2022]
Abstract
A rapid, simple and reliable high performance liquid chromatography-tandem mass spectrometry (HPLC-MS/MS) method was developed for simultaneous determination of amitraz, chlordimeform, formetanate and their main metabolites, N-(2,4-dimethylphenyl)-N-methyl-formamidine (DMPF), 2,4-dimethylformamidine (DMF), 2,4-dimethylaniline (DMA), 4-chloro-2-methylaniline and 3-hydroxyacetanilide in human urine. The urine samples were mixed with buffer solutions (pH 8) and subsequently cleaned up by solid supported liquid/liquid extraction (SLE). The target analytes were efficiently separated with a Waters Atlantis T3 column (150mm×4.6mm, 5μm), ionized with electrospray ion source in positive mode, and quantitatively determined by tandem mass spectrometry in the multiple reaction monitoring (MRM) mode. In order to minimize matrix effects, the matrix-matched calibration curves of eight analytes were adopted with correlation coefficients (R2) above 0.99. The method were further validated by determining the limits of detection (LODs, 0.3-0.6ng/mL), the limits of quantitation (LOQs, 1.0-2.0ng/mL) and recoveries (89.1%-108.4%) with intra-day and inter-day relative standard deviation (RSD, <11%). The established method was applied and demonstrated in a real case by assaying a urine sample from a female poisoned by formetanate. The achieved results proved this method to be rapid, sensitive and accurate for simultaneous quantitation of eight analytes in human urine for intended forensic cases of human poisoning.
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Affiliation(s)
- Xue Gao
- Chongqing Key Lab of Catalysis & Functional Organic Molecules, Chongqing Technology and Business University, Chongqing 400067, China; School of Resources and Environment, Chongqing Technology and Business University, Chongqing 400067, China
| | - Yanglan Tan
- Institute for Nutritional Sciences, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences, Shanghai 200031, China
| | - Hao Guo
- Chongqing Institute of Forensic Science, Chongqing 400021, China.
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12
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LC–MS/MS determination of alectinib and its major human metabolite M4 in human urine: prevention of nonspecific binding. Bioanalysis 2017; 9:459-468. [DOI: 10.4155/bio-2016-0284] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
Aim: Alectinib (Alecensa®) is an anaplastic lymphoma kinase inhibitor for the treatment of anaplastic lymphoma kinase positive non-small-cell lung cancer, and M4 is its major pharmacologically active metabolite. To characterize the pharmacokinetics and excretion of alectinib and M4 in human urine, a bioanalytical method was required. Results: An LC–MS/MS method using supported liquid extraction was developed for the determination of alectinib and M4 in human urine over the concentration range 0.5–500 ng/ml. Accuracy ranged from 92.0 to 112.2% and precision (CV) was below 9.6%. Conclusion: The method was successfully employed to determine alectinib and M4 concentrations in urine samples from a clinical mass balance study. Addition of the surfactant Tween-20 to urine prevented nonspecific binding of the analytes.
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13
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Ding X, Chen Y, Sahasranaman S, Shi Y, McKnight J, Dean B. A supported liquid extraction LC-MS/MS method for determination of concentrations of GDC-0425, a small molecule Checkpoint kinase 1 inhibitor, in human plasma. Biomed Chromatogr 2016; 30:1984-1991. [DOI: 10.1002/bmc.3775] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2015] [Revised: 01/04/2016] [Accepted: 05/27/2016] [Indexed: 12/22/2022]
Affiliation(s)
- Xiao Ding
- Genentech; Drug Metabolism and Pharmacokinetics; 1 DNA Way South San Francisco CA USA
| | - Yuan Chen
- Genentech; Drug Metabolism and Pharmacokinetics; 1 DNA Way South San Francisco CA USA
| | - Srikumar Sahasranaman
- Genentech; Small Molecule Clinical Pharmacology; 1 DNA Way South San Francisco CA USA
| | - Yifan Shi
- Covance Laboratories; 3301 Kinsman Blvd. Madison WI USA
| | | | - Brian Dean
- Genentech; Drug Metabolism and Pharmacokinetics; 1 DNA Way South San Francisco CA USA
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14
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Bioanalysis of alectinib and metabolite M4 in human plasma, cross-validation and impact on PK assessment. Bioanalysis 2016; 8:1465-79. [DOI: 10.4155/bio-2016-0068] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
Background: Alectinib is a novel anaplastic lymphoma kinase (ALK) inhibitor for treatment of patients with ALK-positive non-small-cell lung cancer who have progressed on or are intolerant to crizotinib. To support clinical development, concentrations of alectinib and metabolite M4 were determined in plasma from patients and healthy subjects. Methods: LC–MS/MS methods were developed and validated in two different laboratories: Chugai used separate assays for alectinib and M4 in a pivotal Phase I/II study while Roche established a simultaneous assay for both analytes for another pivotal study and all other studies. Conclusion: Cross-validation assessment revealed a bias between the two bioanalytical laboratories, which was confirmed with the clinical PK data between both pivotal studies using the different bioanalytical methods.
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Abstract
Background: Statins are the microsomal 3-hydroxy-3methylglutaryl-coenzyme A reductase inhibitors used for the treatment of hypercholesterolemia. Some recent studies revealed also the extra-lipid effects and anticancer activities. Due to the wide incidence of cancer diseases, the number of studies dealing with anticancer statin activities has grown in recent years. Development of one universal multistatin method will be a very convenient way of providing practical and economical multiple statin analysis. Results/methodology: Fast and sensitive methods for determination of seven clinically relevant statins, their interconversion products and metabolites (17 analytes in total) in biological samples using microextraction by packed sorbent for sample preparation and UHPLC–MS/MS for subsequent analysis were developed and validated. Three MS platforms with different ion sources, transfer optics, collision cell technologies and scan speed parameters were compared. Conclusion: Significant differences among the methods were observed in terms of selectivity and sensitivity. Microextraction by packed sorbent was successful in the extraction of all 17 analytes from biological matrix.
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