Journal
APPLIED SPECTROSCOPY REVIEWS
Volume 47, Issue 3, Pages 219-232Publisher
TAYLOR & FRANCIS INC
DOI: 10.1080/05704928.2011.639107
Keywords
NQS; chromogenic; spectrophotometry; pharmaceutical amines
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Several papers have been presented in recent years regarding the field of application of 1,2-naphthoquinone-4-sulphonic acid sodium salt (NQS) as a chromogenic reagent for the determination of pharmaceutical amines using spectrophotometry. In this review article, various spectrophotometric methods using NQS as a labeling reagent for determination of pharmaceutical amines are presented. The application of these methods for the determination of drugs in pharmaceutical formulations and real samples is discussed.
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