Linked Life Data

7967165

Source:http://linkedlifedata.com/resource/pubmed/id/7967165

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
4
pubmed:dateCreated
1994-12-16
pubmed:abstractText
A convenient, reliable and sensitive method for analysis of theophylline (TH), theobromine (TB) and caffeine (CA) in biological samples by capillary high performance liquid chromatography (HPLC)/fast atom bombardment (FAB)-mass spectrometry (MS) was developed using 7-ethyltheophylline (7-ETH) as an internal standard (IS). The capillary column (0.3 mm i.d.) enabled the introduction of entire effluent to the frit interface for FAB-MS; and a special column switching device was utilized for sample concentration and gradient formation. These conditions realized simultaneous determination of the compounds of as low as 50-500 ng/ml concentrations. Actually, the compounds in blood and urine could be identified and quantified for healthy subjects having TH and/or CA spontaneously. In addition, TH in human hair obtained from the patients with bronchial asthma, who had taken 400 mg TH daily for more than 2 years, could be detected by the capillary HPLC/FAB-MS. This method seems very useful for the analysis of clinical or forensic samples, because of its ability of final drug identification.
pubmed:language
jpn
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Aug
pubmed:issn
0047-1887
pubmed:author
pubmed:issnType
Print
pubmed:volume
48
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
253-62
pubmed:dateRevised
2006-11-15
pubmed:meshHeading
pubmed:year
1994
pubmed:articleTitle
[Development of the method for analysis of theophylline and its related compounds using capillary high-performance liquid chromatography/fast atom bombardment-mass spectrometry].
pubmed:affiliation
Department of Forensic Medicine, Fukuoka University School of Medicine, Japan.
pubmed:publicationType
Journal Article, English Abstract