Analytical and Bioanalytical Chemistry 2015-05-01

Determination of pharmaceuticals in bivalves using QuEChERS extraction and liquid chromatography-tandem mass spectrometry.

Mireia Núñez, Francesc Borrull, Núria Fontanals, Eva Pocurull

Index: Anal. Bioanal. Chem 407(13) , 3841-9, (2015)

Full Text: HTML

Abstract

A method for the quantitative determination of seven pharmaceuticals in bivalves was developed by QuEChERS (Quick, Easy, Cheap, Effective, Rugged and Safe) extraction, followed by liquid chromatography-tandem mass spectrometry (LC-MS/MS) with electrospray ionization. Both the European Standard Method EN 15662 and the AOAC Official Method 2007.01 for QuEChERS were tested. In addition, several clean-up strategies were evaluated in order to clean the matrix previous to the LC-MS/MS analyses. Dispersive solid-phase extraction with silica gel and modification of the chromatographic separation were the clean-up strategies that gave the best results. The optimized method was validated in mussels (Mytilus galloprovincialis) and allowed the determination of pharmaceuticals at nanograms per gram levels (dry weight (d.w.)). Limits of quantification ranged from 5 to 100 ng/g. Apparent recoveries ranged from 35 to 77%. The application of this method to bivalves revealed the presence of salicylic acid at concentrations up to 103 ng/g (d.w.).

Related Compounds

  • Acetonitrile
  • Naproxen
  • Aluminum oxide
  • Salicylic acid
  • Bezafibrate
  • Ibuprofen
  • acetic acid
  • magnesium sulfate
  • Carbon
  • carbon black

Related Articles:

Neuroprotective effect of modified Chungsimyeolda-tang, a traditional Korean herbal formula, via autophagy induction in models of Parkinson's disease.

2015-01-15

[J. Ethnopharmacol. 159 , 93-101, (2014)]

Biomolecular imaging with a C60-SIMS/MALDI dual ion source hybrid mass spectrometer: instrumentation, matrix enhancement, and single cell analysis.

2014-11-01

[J. Am. Soc. Mass Spectrom. 25(11) , 1897-907, (2014)]

Itraconazole suppresses the growth of glioblastoma through induction of autophagy: involvement of abnormal cholesterol trafficking.

2014-07-01

[Autophagy 10(7) , 1241-55, (2014)]

Diclofenac toxicity in human intestine ex vivo is not related to the formation of intestinal metabolites.

2015-01-01

[Arch. Toxicol. 89(1) , 107-19, (2015)]

Methionine oxidation accelerates the aggregation and enhances the neurotoxicity of the D178N variant of the human prion protein.

2014-12-01

[Biochim. Biophys. Acta 1842(12 Pt A) , 2345-56, (2014)]

More Articles...