Gas Chromatographie Determination of Subnanogram Amounts of the Juvenile Hormone Methyl (2E, 6E)-10,ll-epoxy-3,7,ll-tri- methyl-2,6-dodecadienoate (JH III) in Insect Material by Electron Capture Detection

1975 ◽  
Vol 30 (11-12) ◽  
pp. 726-729 ◽  
Author(s):  
L Van Broekhoven ◽  
A Van Der Kerk ◽  
-Van Hoof ◽  
C Salemink
Keyword(s):  
Juvenile Hormone ◽  
Electron Capture ◽  
Chromatographic Method ◽  
Electron Capture Detector ◽  
Electron Capture Detection ◽  
Juvenile Hormones ◽  
Gas Chromatographic Method ◽  
Work Up

Abstract Using an electron capture detector, a sensitive gas chromatographic method has been developed for the determination of the juvenile hormone methyl(2E, 6E)-10, 11-epoxy-3,7,11-trimethyl-2,6-dodecadienoate (JH III) in insect material. The sensitivity in electron capture detection of the bisheptafluorobutyrate was determined. The work-up procedure was checked by adding known amounts of JH III to insect material. The method seems equally applicable to all three juvenile hormones.

Determination of fluoxetine and norfluoxetine in plasma by gas chromatography with electron-capture detection.

1982 ◽  
Vol 28 (10) ◽  
pp. 2100-2102 ◽  
Author(s):  
J F Nash ◽  
R J Bopp ◽  
R H Carmichael ◽  
K Z Farid ◽  
L Lemberger
Keyword(s):  
Gas Chromatography ◽  
Human Plasma ◽  
Electron Capture ◽  
Relative Error ◽  
Chromatographic Method ◽  
Linear Range ◽  
Electron Capture Detector ◽  
Electron Capture Detection ◽  
Gas Chromatographic Method

Abstract This gas-chromatographic method for assay of fluoxetine and norfluoxetine in human plasma involves extraction of the drugs and use of a 63Ni electron-capture detector. The linear range of detection is 25 to 800 micrograms/L for each drug. Overall precision (CV) in the concentration range of 10 to 100 micrograms/L for both drugs was approximately 10%. Accuracy (relative error) in the same concentration range was approximately +10%. None of the commonly prescribed antidepressants or tranquilizers that we tested interfere with the assay.

Gas Chromatographic Determination of N-Butyl-N-ethyl-α,α,α-trifluoro-2,6-dinitro-p-toluidine and α,α,α-Trifluoro-2,6-dinitro-N,N-dipropyl-p-toluidine in Formulations

1971 ◽  
Vol 54 (3) ◽  
pp. 711-712
Author(s):  
Martha Fuzesi
Keyword(s):  
Gas Chromatography ◽  
Quantitative Determination ◽  
Electron Capture ◽  
Chromatographic Method ◽  
Chromatographic Determination ◽  
Electron Capture Detector ◽  
Reference Solution ◽  
Gas Chromatographic Method

Abstract A gas chromatographic method is described for the quantitative determination of N-butyl-N-ethyl-α,α,α-trifluoro-2,6-dinitro-p-tolindine and α,α,α-trifluoro-2,6-dinitro-N,N-dipropyI-p-toluidine herbicides in formulations. The sample is extracted with benzene, and equal amounts of sample and reference solution in the same concentration range are analyzed by gas chromatography, using an electron capture detector and an SE-30/Diatoport S column. The method has been applied successfully to laboratory-prepared and commercial samples.

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