LC-MS/MS Application in Pharmacotoxicological Field: Current State and New Applications.

Nowadays, it is vital to have new, complete, and rapid methods to screen and follow pharmacotoxicological and forensic cases. In this context, an important role is undoubtedly played by liquid chromatography-tandem mass spectrometry (LC-MS/MS) thanks to its advanced features. This instrument configuration can offer comprehensive and complete analysis and is a very potent analytical tool in the hands of analysts for the correct identification and quantification of analytes.

A new LC-MS/MS confirmation method for the determination of 17 drugs of abuse in oral fluid and its application to real samples.

A new liquid chromatography-tandem mass spectrometry (LC-MS/MS) confirmation method for the direct analysis of 17 drugs starting from 200μL of diluted oral fluid (OF), in a single chromatographic run, was developed and validated. Cocaine, benzoylecgonine (BEG), cocaethylene, Δ-9-tetrahydrocannabinol (Δ-9-THC), buprenorphine, 6-acetylmorphine (6AM), morphine, codeine, methadone, 2-ethylidene-1,5-dimethyl-3,3-diphenylpyrrolidine (EDDP), amphetamine, methamphetamine, 3,4-methylenedioxymethamphetamine (MDMA), methylenedioxyamphetamine (MDA), 3,4-Methylenedioxy-N-ethylamphetamine (MDE), ketamine, N-methyl-1-(1,3-benzodioxol-5-yl)-2-butanamine (MBDB) were determined in a chromatographic run of 12min only with no sample pre-treatment, after the addition of 15 different internal standards (ISs). The method met all requirements in terms of linearity, accuracy (precision and trueness), recovery, and stability requested by FDA guidelines.

Novel MIPs-Parabens based SPE Stationary Phases Characterization and Application.

In this work, the synthesis, characterization, and application of novel parabens imprinted polymers as highly selective solid-phase extraction (SPE) sorbents have been reported. The imprinted polymers were created using sol-gel molecular imprinting process. All the seven parabens were considered herein in order to check the phase selectivity.