Linked Life Data

7453192

Source:http://linkedlifedata.com/resource/pubmed/id/7453192

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
2
pubmed:dateCreated
1981-3-17
pubmed:abstractText
A sensitive, reproducible spectrophotometric assay for mechlorethamine and melphalan was developed through modifications in the use of 4-(p-nitrobenzyl) pyridine as the chromogenic reagent. Key factors that led to enhanced color development and consistency of results were: (1) protein precipitation with 4 degrees C perchloric acid; (2) control of the pH of the reaction with acetate buffer; (3) precise timing of color development in alkali; and (4) sample reading at the appropriate wavelength. The modifications allowed measurement of mechlorethamine and melphalan levels in perfusate samples obtained from isolated rat liver perfusions. Half-lives calculated from perfusate decay curves after addition of mechlorethamine at 50 microgram/ml and 10 microgram/ml were 15.9 min and 15.0 min respectively. The perfusate half-life after addition of melphalan at 5 microgram/ml was 44.2 min. Plasma levels of mechlorethamine were not detectable by this assay after intrapleural administration of 15 mg to one patient but were detectable after intravenous administration of 20 mg to a second patient.
pubmed:grant
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Sep
pubmed:issn
0160-5402
pubmed:author
pubmed:issnType
Print
pubmed:volume
4
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
155-63
pubmed:dateRevised
2007-11-14
pubmed:meshHeading
pubmed:year
1980
pubmed:articleTitle
Modification of the 4-(p-nitrobenzyl) pyridine assay for measurement of melphalan and mechlorethamine in plasma.
pubmed:publicationType
Journal Article, Research Support, U.S. Gov't, P.H.S.