Rapid and simple LC–MS/MS determination of urinary ethyl glucuronide, naltrexone, 6β-naltrexol, chlordiazepoxide, and norchlordiazepoxide for monitoring alcohol abuse

Abstract In this study, a liquid chromatography–tandem mass spectrometry (LC–MS/MS) method was developed to detect ethyl glucuronide (EtG), which is a biomarker for monitoring alcohol consumption, and naltrexone (NTX), 6β-naltrexol (6βNTX), chlordiazepoxide (CDP), and norchlordiazepoxide (norCDP), w...

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Main Authors: Yeong Eun Sim, Ji Woo Kim, Beom Jun Ko, Jin Young Kim
Format: Article
Language:English
Published: SpringerOpen 2022-02-01
Series:Journal of Analytical Science and Technology
Subjects:
Online Access:https://doi.org/10.1186/s40543-022-00315-8
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author Yeong Eun Sim
Ji Woo Kim
Beom Jun Ko
Jin Young Kim
author_facet Yeong Eun Sim
Ji Woo Kim
Beom Jun Ko
Jin Young Kim
author_sort Yeong Eun Sim
collection DOAJ
description Abstract In this study, a liquid chromatography–tandem mass spectrometry (LC–MS/MS) method was developed to detect ethyl glucuronide (EtG), which is a biomarker for monitoring alcohol consumption, and naltrexone (NTX), 6β-naltrexol (6βNTX), chlordiazepoxide (CDP), and norchlordiazepoxide (norCDP), which are analyzed to confirm the presence of medications for alcohol dependence treatment. The protein precipitation method was conducted to rapidly prepare samples. LC–MS/MS analysis was performed in the multiple-reaction monitoring mode. The analytes were separated using a Scherzo SM-C18 (2.0 × 100 mm, 3 µm) column. The calibration ranges were 5–1000 ng/mL for EtG, 6βNTX, CDP, and norCDP, and 1–100 ng/mL for NTX, with the correlation coefficients (r) being ≥ 0.994, and the weighting factor being 1/x 2. The lower limit of quantification was 1–5 ng/mL. The method was also validated for precision, accuracy, selectivity, dilution integrity, recovery, matrix effect, and stability. The developed method was successfully applied for the determination of EtG, NTX, 6βNTX, CDP, and norCDP in urine samples obtained from 49 probationers who received alcohol dependence treatment orders. The method developed herein can be used to monitor the drug-based treatment of alcohol abuse and alcohol consumption during the treatment of individuals under probation.
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spelling doaj.art-dfea7e0616df4ac39a24e10f73c519992022-12-21T19:33:40ZengSpringerOpenJournal of Analytical Science and Technology2093-33712022-02-0113111010.1186/s40543-022-00315-8Rapid and simple LC–MS/MS determination of urinary ethyl glucuronide, naltrexone, 6β-naltrexol, chlordiazepoxide, and norchlordiazepoxide for monitoring alcohol abuseYeong Eun Sim0Ji Woo Kim1Beom Jun Ko2Jin Young Kim3Forensic Genetics and Chemistry Division, Supreme Prosecutors’ OfficeForensic Genetics and Chemistry Division, Supreme Prosecutors’ OfficeForensic Genetics and Chemistry Division, Supreme Prosecutors’ OfficeForensic Genetics and Chemistry Division, Supreme Prosecutors’ OfficeAbstract In this study, a liquid chromatography–tandem mass spectrometry (LC–MS/MS) method was developed to detect ethyl glucuronide (EtG), which is a biomarker for monitoring alcohol consumption, and naltrexone (NTX), 6β-naltrexol (6βNTX), chlordiazepoxide (CDP), and norchlordiazepoxide (norCDP), which are analyzed to confirm the presence of medications for alcohol dependence treatment. The protein precipitation method was conducted to rapidly prepare samples. LC–MS/MS analysis was performed in the multiple-reaction monitoring mode. The analytes were separated using a Scherzo SM-C18 (2.0 × 100 mm, 3 µm) column. The calibration ranges were 5–1000 ng/mL for EtG, 6βNTX, CDP, and norCDP, and 1–100 ng/mL for NTX, with the correlation coefficients (r) being ≥ 0.994, and the weighting factor being 1/x 2. The lower limit of quantification was 1–5 ng/mL. The method was also validated for precision, accuracy, selectivity, dilution integrity, recovery, matrix effect, and stability. The developed method was successfully applied for the determination of EtG, NTX, 6βNTX, CDP, and norCDP in urine samples obtained from 49 probationers who received alcohol dependence treatment orders. The method developed herein can be used to monitor the drug-based treatment of alcohol abuse and alcohol consumption during the treatment of individuals under probation.https://doi.org/10.1186/s40543-022-00315-8Alcohol abuseEthyl glucuronideNaltrexoneChlordiazepoxideUrineLC–MS/MS
spellingShingle Yeong Eun Sim
Ji Woo Kim
Beom Jun Ko
Jin Young Kim
Rapid and simple LC–MS/MS determination of urinary ethyl glucuronide, naltrexone, 6β-naltrexol, chlordiazepoxide, and norchlordiazepoxide for monitoring alcohol abuse
Journal of Analytical Science and Technology
Alcohol abuse
Ethyl glucuronide
Naltrexone
Chlordiazepoxide
Urine
LC–MS/MS
title Rapid and simple LC–MS/MS determination of urinary ethyl glucuronide, naltrexone, 6β-naltrexol, chlordiazepoxide, and norchlordiazepoxide for monitoring alcohol abuse
title_full Rapid and simple LC–MS/MS determination of urinary ethyl glucuronide, naltrexone, 6β-naltrexol, chlordiazepoxide, and norchlordiazepoxide for monitoring alcohol abuse
title_fullStr Rapid and simple LC–MS/MS determination of urinary ethyl glucuronide, naltrexone, 6β-naltrexol, chlordiazepoxide, and norchlordiazepoxide for monitoring alcohol abuse
title_full_unstemmed Rapid and simple LC–MS/MS determination of urinary ethyl glucuronide, naltrexone, 6β-naltrexol, chlordiazepoxide, and norchlordiazepoxide for monitoring alcohol abuse
title_short Rapid and simple LC–MS/MS determination of urinary ethyl glucuronide, naltrexone, 6β-naltrexol, chlordiazepoxide, and norchlordiazepoxide for monitoring alcohol abuse
title_sort rapid and simple lc ms ms determination of urinary ethyl glucuronide naltrexone 6β naltrexol chlordiazepoxide and norchlordiazepoxide for monitoring alcohol abuse
topic Alcohol abuse
Ethyl glucuronide
Naltrexone
Chlordiazepoxide
Urine
LC–MS/MS
url https://doi.org/10.1186/s40543-022-00315-8
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