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Predicate | Object |
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rdf:type | |
lifeskim:mentions | |
pubmed:issue |
6
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pubmed:dateCreated |
1976-8-23
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pubmed:abstractText |
We describe a gas-chromatographic procedure for the simultaneous determination of amitriptyline and its active metabolite, nortriptyline, in therapeutic concentrations in human plasma, with use of a nitrogen detector. Both drugs are extracted at pH 10.5 into hexane/isoamyl alcohol, back-extracted into dilute HCl, and re-extracted into hexane/isoamyl alcohol after alkalinization of the HCl. The solvent is evaporated and the residue gas-chromatographed. Protriptyline is used as the internal standard. As little as 5 mug of amitriptyline or nortriptyline can be detected per liter of plasma. The coefficients of variation, for a concentration of 200 mug/liter, are 4.6% and 4.3% within-day and 8.6% and 3.4% day-to-day for amitriptyline and nortriptyline, respectively. The procedure was applied to patients receiving therapeutic doses of both drugs and also to patients who had taken overdoses of amitriptyline.
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pubmed:language |
eng
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pubmed:journal | |
pubmed:citationSubset |
IM
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pubmed:chemical | |
pubmed:status |
MEDLINE
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pubmed:month |
Jun
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pubmed:issn |
0009-9147
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pubmed:author | |
pubmed:issnType |
Print
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pubmed:volume |
22
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pubmed:owner |
NLM
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pubmed:authorsComplete |
Y
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pubmed:pagination |
777-81
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pubmed:dateRevised |
2007-11-15
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pubmed:meshHeading |
pubmed-meshheading:1277461-Amitriptyline,
pubmed-meshheading:1277461-Chromatography, Gas,
pubmed-meshheading:1277461-Dose-Response Relationship, Drug,
pubmed-meshheading:1277461-Evaluation Studies as Topic,
pubmed-meshheading:1277461-Humans,
pubmed-meshheading:1277461-Microchemistry,
pubmed-meshheading:1277461-Nitrogen,
pubmed-meshheading:1277461-Nortriptyline
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pubmed:year |
1976
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pubmed:articleTitle |
Gas-chromatographic analysis for therapeutic concentrations of amitriptyline and nortriptyline in plasma, with use of a nitrogen detector.
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pubmed:publicationType |
Journal Article,
Research Support, U.S. Gov't, P.H.S.,
Research Support, U.S. Gov't, Non-P.H.S.
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