J 2016

Rapid Screening of Acetylcholinesterase Inhibitors by Effect-Directed Analysis Using LC x LC Fractionation, a High Throughput in Vitro Assay, and Parallel Identification by Time of Flight Mass Spectrometry

OUYANG, Xiyu, Pim E. G. LEONARDS, Zuzana TOUŠOVÁ, Jaroslav SLOBODNÍK, Jacob DE BOER et. al.

Basic information

Original name

Rapid Screening of Acetylcholinesterase Inhibitors by Effect-Directed Analysis Using LC x LC Fractionation, a High Throughput in Vitro Assay, and Parallel Identification by Time of Flight Mass Spectrometry

Authors

OUYANG, Xiyu (528 Netherlands), Pim E. G. LEONARDS (528 Netherlands), Zuzana TOUŠOVÁ (203 Czech Republic, guarantor, belonging to the institution), Jaroslav SLOBODNÍK (703 Slovakia), Jacob DE BOER (528 Netherlands) and Marja H. LAMOREET (528 Netherlands)

Edition

Analytical Chemistry, WASHINGTON, AMER CHEMICAL SOC, 2016, 0003-2700

Other information

Language

English

Type of outcome

Článek v odborném periodiku

Field of Study

10406 Analytical chemistry

Country of publisher

United States of America

Confidentiality degree

není předmětem státního či obchodního tajemství

References:

Impact factor

Impact factor: 6.320

RIV identification code

RIV/00216224:14310/16:00089984

Organization unit

Faculty of Science

UT WoS

000370454000053

Keywords in English

2-DIMENSIONAL LIQUID-CHROMATOGRAPHY; CARBAMATE INSECTICIDES; TOXICANTS; MIXTURES; POTENCY; SAMPLES

Tags

Tags

International impact, Reviewed
Změněno: 3/3/2017 07:29, Mgr. Michaela Hylsová, Ph.D.

Abstract

V originále

Effect-directed analysis (EDA) is a useful tool to identify bioactive compounds in complex samples. However, identification in EDA is usually challenging, mainly due to limited separation power of the liquid chromatography based fractionation. In this study, comprehensive two-dimensional liquid chromatography (LC X LC) based microfractionation combined with parallel high resolution time of flight (HR-ToF) mass spectrometric detection and a high throughput acetylcholinesterase (AChE) assay was developed. The LC x LC fractionation method was validated using analytical standards and a C18 and pentafluorophenyl (PFP) stationary phase combination was selected for the two-dimensional separation and fractionation in four 96-well plates. The method was successfully applied to identify AChE inhibitors in a wastewater treatment plant (WWTP) effluent. Good orthogonality (>0.9) separation was achieved and three AChE inhibitors (tiapride, amisulpride, and lamotrigine), used as antipsychotic medicines, were identified and confirmed by two-dimensional retention alignment as well as their AChE inhibition activity.