Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
2
pubmed:dateCreated
2004-11-3
pubmed:abstractText
A novel liquid chromatographic--electrospray ionisation mass spectrometric (LC--ESI-MS) method has been developed for the determination of escitalopram, an antidepressant in human plasma using paroxetine as internal standard. The method involved liquid--liquid extraction of the analyte from human plasma with a mixture of diethyl ether and dichloromethane (70:30, v/v). The chromatographic separation was achieved within 7.0 min by using 2.0 mM ammonium acetate (pH 5.0)--acetonitrile (54:46, v/v) as mobile phase and a ODS YMCAQ 150 mm x 4.6 mm analytical column; the flow-rate was 1.0 ml/min. Ion signals m/z 325.0 and 330.0 for escitalopram and internal standard, were measured in the positive mode. A detailed validation of the method was performed as per USFDA guidelines and the standard curves were found to be linear in the range of 1.0-200 ng/ml with a mean correlation coefficient more than 0.99. The absolute recovery was more than 75% for both escitalopram and internal standard. The method was simple, sensitive, precise, accurate and was successfully applied to the bioequivalence study of escitalopram in healthy, male, human subjects.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Nov
pubmed:issn
1570-0232
pubmed:author
pubmed:issnType
Print
pubmed:day
25
pubmed:volume
811
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
209-15
pubmed:meshHeading
pubmed:year
2004
pubmed:articleTitle
Liquid chromatography--electrospray ionisation mass spectrometry method for the determination of escitalopram in human plasma and its application in bioequivalence study.
pubmed:affiliation
Biomedical and DMPK Department, Zydus Research Centre, Sarkhej-Bavla N.H. No. 8A, Moraiya, Ahmedabad 382213, India. sonusingh@zyduscadila.com
pubmed:publicationType
Journal Article, Validation Studies