NDLI: Determination of Drugs for Crohn’s Disease Treatment in Pharmaceuticals by Capillary Electrophoresis Hyphenated with Tandem Mass Spectrometry

Content Provider	Springer Nature Link
Author	Maráková, Katarína Piešťanský, Juraj Mikuš, Peter
Copyright Year	2016
Abstract	A capillary electrophoresis (CE) method hyphenated with tandem mass spectrometry (triple quadrupole, QqQ MS) was developed for the simultaneous determination of six selected drugs used in Crohn’s disease treatment, namely, azathioprine, 6-thioguanine, 6-mercaptopurine, mesalazine, prednisone, and allopurinol. A 10 mM ammonium acetate adjusted at pH 9 by 3% ammonium hydroxide and including a 5% methanol addition was used as an optimum background electrolyte (BGE). The optimum BGE provided both the baseline electrophoretic separation of the drugs and highly compatible connection of CE to the electro-spray ionization (ESI) interface. The optimized working conditions were favorable for the selective and sensitive QqQ MS detection of the separated compounds according to their mass-to-charge (m/z) ratios. The proposed method was validated in terms of precision (RSDs for the repeatability of migration times and peak areas of the analyzed drugs were less than 1.66 and 6.06%, respectively), linearity (determination coefficient ranged in the interval of 0.9987–0.9995), limits of quantitation (sub µg mL−1 levels), and accuracy (mean recoveries of all the analytes in pharmaceutical matrix ranged in the interval of 98.23–101.2%). The CE-ESI-QqQ MS method is fast, simple, selective, precise, and accurate, and was successfully applied to a highly reliable determination of the targeted drugs (for the treatment of inflammatory bowel disease, IBD) in commercial pharmaceuticals (tablet dosage forms).
Starting Page	537
Ending Page	546
Page Count	10
File Format	PDF
ISSN	00095893
Journal	Chromatographia
Volume Number	80
Issue Number	4
e-ISSN	16121112
Language	English
Publisher	Springer Berlin Heidelberg
Publisher Date	2016-11-29
Publisher Place	Berlin, Heidelberg
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Capillary electrophoresis Tandem mass spectrometry Hyphenation Crohn’s disease Thiopurines Drugs Pharmaceutical analysis Chromatography Proteomics Pharmacy Laboratory Medicine
Content Type	Text
Resource Type	Article
Subject	Organic Chemistry Analytical Chemistry Biochemistry Clinical Biochemistry

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