Linked Life Data

16599405

Source:http://linkedlifedata.com/resource/pubmed/id/16599405

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
1
pubmed:dateCreated
2006-4-7
pubmed:abstractText
A rapid and sensitive high-performance liquid chromatographic (HPLC) method is developed for the determination of tetramethylpyrazine phosphate, an antiplatelet aggregation agent, in 100 microL of dog plasma. Sample preparations are carried out by deproteinization with an internal standard (carbamazepine) solution in acetonitrile. An aliquot of the supernatant (20 microL) is directly injected into an HPLC apparatus with methanol-phosphate buffer (0.01M, pH 3.0) (62:38, v/v) as the mobile phase at a flow rate of 1.0 mL/min. Separation is performed with a C18 column at 30 degrees C. The peak is detected using a UV detector set at 279 nm. The capacity factors are 1.48 for tetramethylpyrazine phosphate and 2.09 for carbamazepine, with a total run time of 10 min. The calibration curve is linear in the 0.2-50-microg/mL range. The limit of detection is 0.05 microg/mL. Mean recoveries are 92.6-98.1%. The within- and between-day variation coefficients are less than 4.9% and 7.5%, respectively. The present method has been successfully used to provide pharmacokinetic data after oral administration of tetramethylpyrazine phosphate pulsincap capsules and immediate-release tablets to dogs.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Jan
pubmed:issn
0021-9665
pubmed:author
pubmed:issnType
Print
pubmed:volume
44
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
13-7
pubmed:dateRevised
2006-11-15
pubmed:meshHeading
pubmed:year
2006
pubmed:articleTitle
Simple high-performance liquid chromatographic method for the determination of tetramethylpyrazine phosphate in very small volumes of dog plasma: application to a pharmacokinetic study.
pubmed:affiliation
Department of Bioengineering, Southwest Jiaotong University, 610031 610041 Chengdu, China.
pubmed:publicationType
Journal Article, Research Support, Non-U.S. Gov't