High-performance liquid chromatographic determination of (Z)- and (E)-doxepin hydrochloride isomers.

Abstract:

:A high-performance liquid chromatographic method for the determination of (Z)- and (E)-doxepin hydrochloride isomers was developed. The analysis employs a column packed with spherical silica microparticles (5-6 mum), and a mobile phase of acetonitrile-chloroform-diethylamine (750:250:0.2) permits baseline resolution and simultaneous determination of the (Z)- and (E)-doxepin isomers. Process-related substances do not interfere. The method is accurate and precise (the relative standard deviation was 0.3% for both isomers). The simple procedure is highly suitable for routine doxepin hydrochloride analysis.

journal_name

J Pharm Sci

authors

Whall TJ,Dokladalova J

doi

10.1002/jps.2600681133

subject

Has Abstract

pub_date

1979-11-01 00:00:00

pages

1454-6

issue

11

eissn

0022-3549

issn

1520-6017

pii

S0022-3549(15)42934-X

journal_volume

68

pub_type

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