Sensitive screening of abused drugs in dried blood samples using ultra-high-performance liquid chromatography-ion booster-quadrupole time-of-flight mass spectrometry

Divyabharathi Chepyala, I. Lin Tsai, Hsiao Wei Liao, Guan Yuan Chen, Hsi Chun Chao, Ching Hua Kuo

Research output: Contribution to journalArticle

11 Citations (Scopus)

Abstract

An increased rate of drug abuse is a major social problem worldwide. The dried blood spot (DBS) sampling technique offers many advantages over using urine or whole blood sampling techniques. This study developed a simple and efficient ultra-high-performance liquid chromatography-ion booster-quadrupole time-of-flight mass spectrometry (UHPLC-IB-QTOF-MS) method for the analysis of abused drugs and their metabolites using DBS. Fifty-seven compounds covering the most commonly abused drugs, including amphetamines, opioids, cocaine, benzodiazepines, barbiturates, and many other new and emerging abused drugs, were selected as the target analytes of this study. An 80% acetonitrile solvent with a 5-min extraction by Geno grinder was used for sample extraction. A Poroshell column was used to provide efficient separation, and under optimal conditions, the analytical times were 15 and 5 min in positive and negative ionization modes, respectively. Ionization parameters of both electrospray ionization source and ion booster (IB) source containing an extra heated zone were optimized to achieve the best ionization efficiency of the investigated abused drugs. In spite of their structural diversity, most of the abused drugs showed an enhanced mass response with the high temperature ionization from an extra heated zone of IB source. Compared to electrospray ionization, the ion booster (IB) greatly improved the detection sensitivity for 86% of the analytes by 1.5–14-fold and allowed the developed method to detect trace amounts of compounds on the DBS cards. The validation results showed that the coefficients of variation of intra-day and inter-day precision in terms of the signal intensity were lower than 19.65%. The extraction recovery of all analytes was between 67.21 and 115.14%. The limits of detection of all analytes were between 0.2 and 35.7 ng mL−1. The stability study indicated that 7% of compounds showed poor stability (below 50%) on the DBS cards after 6 months of storage at room temperature and −80 °C. The reported method provides a new direction for abused drug screening using DBS.

Original languageEnglish
Pages (from-to)57-66
Number of pages10
JournalJournal of Chromatography A
Volume1491
DOIs
Publication statusPublished - Mar 31 2017

Fingerprint

Preclinical Drug Evaluations
High performance liquid chromatography
Mass spectrometry
Mass Spectrometry
Screening
Blood
High Pressure Liquid Chromatography
Ions
Ionization
Pharmaceutical Preparations
Electrospray ionization
Amphetamines
Barbiturates
Temperature
Sampling
Social Problems
Grinding mills
Benzodiazepines
Cocaine
Opioid Analgesics

Keywords

  • Dried blood spots
  • Drug of abuse
  • Ion-booster
  • Quadrupole time-of-flight mass spectrometry
  • Ultra-high-performance liquid chromatography

ASJC Scopus subject areas

  • Analytical Chemistry
  • Biochemistry
  • Organic Chemistry

Cite this

Sensitive screening of abused drugs in dried blood samples using ultra-high-performance liquid chromatography-ion booster-quadrupole time-of-flight mass spectrometry. / Chepyala, Divyabharathi; Tsai, I. Lin; Liao, Hsiao Wei; Chen, Guan Yuan; Chao, Hsi Chun; Kuo, Ching Hua.

In: Journal of Chromatography A, Vol. 1491, 31.03.2017, p. 57-66.

Research output: Contribution to journalArticle

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