Determination of molecular electron affinities using the electron capture detector in the pulse sampling mode at steady state

1983 ◽  
Vol 87 (1) ◽  
pp. 45-49 ◽  
Author(s):  
E. C. M. Chen ◽  
W. E. Wentworth
Keyword(s):  
Steady State ◽  
Electron Capture ◽  
Electron Capture Detector ◽  
Electron Affinities ◽  
Molecular Electron

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.

Electron capture by some molecules of biological significance and the determination of absolute electron affinities

1968 ◽  
Vol 21 (12) ◽  
pp. 2853 ◽  
Author(s):  
A Fulton ◽  
LE Lyons ◽  
GC Morris
Keyword(s):  
Electron Capture ◽  
Protoporphyrin Ix ◽  
Biological Significance ◽  
Molecular Orbitals ◽  
Electron Affinities ◽  
Metal Free ◽  
Capture Method

The electron capture method was applied to protoporphyrin IX and meso- porphyrin IX dimethyl esters, metal-free phthalocyanine, chlorophyll, riboflavine, nicotinamide, tetracene, and pentacene. The energy quantities obtained correlated with calculated energies of the lowest empty molecular orbitals of these molecules.

Determination of indicator polychlorinated biphenyls (PCBs) by gas chromatography–electron capture detector

Chemosphere ◽  
2013 ◽  
Vol 93 (8) ◽  
pp. 1556-1560 ◽  
Author(s):  
Samuel Afful ◽  
Johannes A.M. Awudza ◽  
Stevester K. Twumasi ◽  
Shiloh Osae
Keyword(s):  
Gas Chromatography ◽  
Polychlorinated Biphenyls ◽  
Electron Capture ◽  
Electron Capture Detector

Microdetermination of Bioethanomethrin

1975 ◽  
Vol 58 (4) ◽  
pp. 781-784
Author(s):  
Donald A George ◽  
Leslie M Mcdonough
Keyword(s):  
Spectral Data ◽  
Electron Capture ◽  
Synthetic Pyrethroid ◽  
Pyrethroid Insecticide ◽  
Electron Capture Detector ◽  
Gas Chromatograph ◽  
Mass Spectral Data ◽  
Acid Moiety ◽  
Mass Spectral

Abstract A microanalytical method was developed for the determination of the experimental synthetic pyrethroid insecticide Bioethanomethrin ((5- benzyl-3-furyl) methyl trans-(+)-3-( cyclopentylidenemethyl)-2,2 -dimethylcyclopropanecarboxylate). After saponification, trichloroacetyl chloride is used to form an ester from the alcohol moiety, and trichloroethanol is used to form an ester from the acid moiety. Infrared and mass spectral data support the expected structures of the derivatives formed. Nanogram sensitivity is realized by utilizing a gas chromatograph with an electron capture detector.

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