|
rdf:type |
|
|
lifeskim:mentions |
umls-concept:C0002658,
umls-concept:C0008565,
umls-concept:C0025611,
umls-concept:C0037473,
umls-concept:C0042037,
umls-concept:C0043863,
umls-concept:C0184511,
umls-concept:C0185115,
umls-concept:C0370003,
umls-concept:C0450442,
umls-concept:C0680730,
umls-concept:C1148554,
umls-concept:C2347026
|
|
pubmed:issue |
2
|
|
pubmed:dateCreated |
1995-6-8
|
|
pubmed:abstractText |
Solid-phase extraction techniques were evaluated for the treatment of urine samples in the analysis of amphetamine and methamphetamine by normal-phase high-performance liquid chromatography with 1,2-naphthoquinone 4-sulphonate. Six different packing materials were tested, and the results obtained are compared with those obtained in a classical liquid-liquid extraction with n-hexane. Different clean-up eluents and the influence of pH of urine have been tested. The intra-day and inter-day precision, the accuracy of the method and the addition of beta-phenylethylamine as internal standard were also studied.
|
|
pubmed:language |
eng
|
|
pubmed:journal |
|
|
pubmed:citationSubset |
IM
|
|
pubmed:chemical |
|
|
pubmed:status |
MEDLINE
|
|
pubmed:month |
Jan
|
|
pubmed:issn |
1572-6495
|
|
pubmed:author |
|
|
pubmed:issnType |
Print
|
|
pubmed:day |
20
|
|
pubmed:volume |
663
|
|
pubmed:owner |
NLM
|
|
pubmed:authorsComplete |
Y
|
|
pubmed:pagination |
235-45
|
|
pubmed:dateRevised |
2007-10-16
|
|
pubmed:meshHeading |
|
|
pubmed:year |
1995
|
|
pubmed:articleTitle |
Improved amphetamine and methamphetamine determination in urine by normal-phase high-performance liquid chromatography with sodium 1,2-naphthoquinone 4-sulphonate as derivatizing agent and solid-phase extraction for sample clean-up.
|
|
pubmed:affiliation |
Departamento de Química Analítica, Facultad de Química, Universidad de Valencia, Spain.
|
|
pubmed:publicationType |
Journal Article
|
