| Rapid and simple determination of psychotropic phenylalkylamine derivatives in urine by direct injection liquid chromatography-electrospray ionization-tandem mass spectrometry. | |
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MedLine Citation:
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PMID: 22532383 Owner: NLM Status: Publisher |
Abstract/OtherAbstract:
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A direct injection liquid chromatography-electrospray ionization-tandem mass spectrometric method (LC-ESI-MS/MS) was developed and validated for the rapid and simple determination of 13 phenylalkylamine derivatives. Eight deuterium-labeled compounds were prepared for use as internal standards (ISs) to quantify the analytes. Urine samples mixed with ISs were centrifuged, filtered through 0.22 µm filters and then injected directly into the LC-ESI-MS/MS system. The mobile phase was composed of 0.2% formic acid and 2 mM ammonium formate in distilled water and 0.2% formic acid and 2 mM ammonium formate in acetonitrile. The analytical column was a Capcell Pak MG-II C(18) (150 × 2.0 mm i.d., 5 µm, Shiseido). Separation and detection of the analytes were accomplished within 10 min. The linear ranges were 5-750 ng/mL (ephedrine and fenfluramine), 10-750 ng/mL (3,4-methylenedioxyamphetamine, phendimetrazine, methamphetamine, 3,4-methylenedioxyethylamphetamine and benzphetamine), 20-750 ng/mL (norephedrine, amphetamine, phentermine and ketamine) and 30-1000 ng/mL (3,4-methylenedioxymethamphetamine and norketamine), with determination coefficients, R(2) , ≥ 0.9967. The intra-day and inter-day precisions were within 19.1%. The intra-day and inter-day accuracies ranged from -16.0 to 18.7%. The lower limits of quantification for all the analytes were lower than 26.5 ng/mL. The applicability of the method was examined by analyzing urine samples from drug abusers (n = 30). Copyright © 2012 John Wiley & Sons, Ltd. |
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Authors:
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Woonyong Kwon; Jin Young Kim; Sungill Suh; Moon Kyo In |
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Publication Detail:
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Type: JOURNAL ARTICLE Date: 2012-4-25 |
Journal Detail:
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Title: Biomedical chromatography : BMC Volume: - ISSN: 1099-0801 ISO Abbreviation: - Publication Date: 2012 Apr |
Date Detail:
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Created Date: 2012-4-25 Completed Date: - Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 8610241 Medline TA: Biomed Chromatogr Country: - |
Other Details:
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Languages: ENG Pagination: - Citation Subset: - |
Copyright Information:
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Copyright © 2012 John Wiley & Sons, Ltd. |
Affiliation:
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Drug Analysis Laboratory, Forensic Science Division, Supreme Prosecutors' Office, Seoul, 137-730, Korea. |
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From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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