Simple and cost-effective liquid chromatographic method for determination of pyrimethamine in whole blood samples dried on filter paper

2005 ◽  
Vol 814 (1) ◽  
pp. 179-183 ◽  
Author(s):  
O.M.S. Minzi ◽  
A.Y. Massele ◽  
L.L. Gustafsson ◽  
Ö. Ericsson
Keyword(s):  
Filter Paper ◽  
Whole Blood ◽  
Chromatographic Method ◽  
Cost Effective ◽  
Blood Samples ◽  
Liquid Chromatographic Method ◽  
Whole Blood Samples ◽  
Liquid Chromatographic

Gas-Liquid Chromatographic Isolation, Identification, and Quantitation of Some Barbiturates, Glutethimide, and Diphenylhydantoin in Whole Blood

1972 ◽  
Vol 18 (11) ◽  
pp. 1343-1349 ◽  
Author(s):  
Rodney G Cooper ◽  
Mavis S Greaves ◽  
Goronwy Owen
Keyword(s):  
Quantitative Determination ◽  
Whole Blood ◽  
Chromatographic Method ◽  
Accurate Method ◽  
Retention Data ◽  
Qualitative And Quantitative ◽  
Liquid Chromatographic Method ◽  
Liquid Chromatographic ◽  
Chromatographic Isolation

Abstract An accurate method is described for the qualitative and quantitative determination of 11 barbiturates, glutethimide, and diphenylhydantoin in a single extract obtained from 1 ml of whole blood, which is extracted with ether at pH 2 and separately but simultaneously gas-liquid chromatographed on a selective (3% OV-17) and a nonselective (5% OV-1) column. Retention data are given. Results for barbiturate obtained by the Broughton [Biochem. J.63, 207 (1956)] spectrophotometric method and this gas-liquid chromatographic method are compared. Blood from more than 30 patients has been analyzed, and data are given to illustrate some of the findings.

Stability-Indicating Liquid Chromatographic Determination of Alpha-Ionone in Toothpaste

1988 ◽  
Vol 71 (1) ◽  
pp. 36-37
Author(s):  
Ramesh J Trivedi
Keyword(s):  
Standard Deviation ◽  
Chromatographic Method ◽  
Cost Effective ◽  
Chromatographic Determination ◽  
Average Recovery ◽  
Liquid Chromatographic Method ◽  
Relative Standard ◽  
Liquid Chromatographic Determination ◽  
Liquid Chromatographic

Abstract A simple, sensitive, and rapid liquid chromatographic method for quantitating α-ionone in toothpaste at levels of 20 ppm in the presence of large amounts of flavor has been developed. The method is accurate, precise, cost-effective, and specific for α-ionone. Average recovery of a laboratory-prepared sample was 99.0% with the relative standard deviation was 1.29% (n = 6).

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