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PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
10
pubmed:dateCreated
1986-2-5
pubmed:abstractText
A high-performance liquid chromatographic (HPLC) assay has been developed to quantify the bronchodilator 3-(2-ethylamino)propyl)-1,2,3,4-tetrahydro-5H(1)benzopyrano(3,4-c)pyridi n-5-one (CI-923) (1) in human plasma. The drug and internal standard (2) were extracted from plasma (pH 10.5) with ether, and the secondary amines were derivatized with fluorescein-6-isothiocyanate (F6ITC) (3). The derivatives were isolated from the mixture by on-line HPLC column switching and were quantified with fluorometric detection (Ex: 484 nm; Em: 518 nm). Linearity was observed over the range 0.5-50.0 ng/mL of 1, and the recovery of drug from plasma was greater than 86%. The precision of the method was 3.7-5.2% RSD based on the analysis of seeded control pools containing 0.8, 20.0 and 40.0 ng/mL of 1. The accuracy of the method was +/- 3.3% relative error for the same three pools.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Oct
pubmed:issn
0022-3549
pubmed:author
pubmed:issnType
Print
pubmed:volume
74
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
1091-4
pubmed:dateRevised
2008-11-21
pubmed:meshHeading
pubmed:year
1985
pubmed:articleTitle
Analysis of 3-(2-(ethylamino)propyl)-1,2,3,4-tetrahydro-5H(1)benzopyrano (3,4-c)pyridin-5-one in plasma by liquid chromatographic column switching after derivatizing the secondary amine with fluorescein-6-isothiocyanate.
pubmed:publicationType
Journal Article