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A Comparison of Single Quadrupole Mass Detection and Diode Array Ultraviolet Detection Interfaced to Uultra-high Performance Supercritical Chromatography for the Quantitative Analysis of Synthetic Cathinones

NCJ Number
Journal of Chromatography B-Analytical Technologies in the Biomedical and Life Sciences Volume: 1091 Dated: August 2018 Pages: 96-100
Date Published
August 2018
5 pages

This project compared single quadruple mass spectrometry and diode array-ultraviolet (PDA-UV) detection interfaced to ultra-high performance supercritical fluid chromatography for the quantitative analysis of synthetic cathinones.


Synthetic cathinones, also known as bath salts, are derived from cathinone, a component of the khat plant. For 15 controlled solutes linearity, repeatability, and limits of detection were determined using both UV and MS detection. Quantitation studies were performed, using the above detectors for 19 mixtures of up to 4 of the above compounds with an adulterant to simulate seized samples. MS detection provided approximately an order of magnitude greater linearity range and allowed for two to three orders of magnitude lower limits of detection than UV detection. Both detection techniques exhibited similar results of analysis and comparable repeatability. The latter detection mode which provided significantly high linearity correlation coefficients would be preferred for quantitative analysis. (publisher abstract modified)

Date Published: August 1, 2018