DTA/EGA Using a Specific Detector

1980 ◽  
pp. 327-333 ◽  
Author(s):  
S. B. Warrington ◽  
P. A. Barnes
Keyword(s):  
Specific Detector

Determination of 2-Chloroethanol in Honey, Beeswax, and Pollen

1983 ◽  
Vol 66 (3) ◽  
pp. 659-662
Author(s):  
Gary W Bruns ◽  
Robert A Currie
Keyword(s):  
Ethylene Oxide ◽  
Maximum Amount ◽  
Ethylene Chlorohydrin ◽  
Liquid Chromatograph ◽  
Naturally Occurring ◽  
Specific Detector

Abstract Procedures were developed and tested for the determination of residues of 2-chloroethanol (ethylene chlorohydrin, ECH) in honey, beeswax, and pollen. Recoveries of ECH from fortified samples averaged 91,87, and 89%, respectively, for each substrate. The maximum amount of ECH found in substrate fumigated with ethylene oxide was 36 μg/g in honey, 124 μg/g in beeswax, and 132 μg/g in pollen. A tendency was noted for darker waxes, which contain larger amounts of naturally occurring chlorides than light-colored waxes, to contain the greater amounts of ECH. A gas-liquid chromatograph equipped with a Dohrmann halogen-specific detector was used for identification and quantitation.

Gas Chromatographic Determination of Cadaverine, Putrescine, and Histamine in Foods

1981 ◽  
Vol 64 (3) ◽  
pp. 584-591 ◽  
Author(s):  
Walter F Staruszkiewicz ◽  
John F Bond
Keyword(s):  
Quantitative Determination ◽  
Ethyl Acetate ◽  
Electron Capture ◽  
Collaborative Study ◽  
Internal Standard ◽  
Chromatographic Determination ◽  
Alumina Column ◽  
Fishery Products ◽  
Specific Detector

Abstract A GLC procedure for the quantitative determination of the diamines putrescine and cadaverine has been developed, using their perfluoropropionyl derivatives. The amines were extracted from foods with methanol; an internal standard, hexanediamine, was added and a dry residue of their hydrochloride salts was prepared. The salts were derivatized with perfluoropropionic anhydride by heating for 30 min at 50°C. The reaction mixture was separated on an alumina column to remove excess reagent, and the derivatives were eluted with a solution of 30% ethyl acetate in toluene. GLC separations were performed on a 3% OV-225 column held at 180°C. The retention times were 4.3,5.7, and 7.0 min for the derivatives for putrescine, cadaverine, and the internal standard, respectively. Less than 1 μg diamine/g tissue could be quantitated, using either an electron capture detector or a nitrogen-specific detector. The procedure was applied to cheese and a variety of fishery products. An increase in the diamines correlated with the presence of decomposition in some of the products. A collaborative study of the method is planned.

A novel radionuclide-specific detector system for the measurement of radioactivity at steelworks

2015 ◽  
Vol 305 (1) ◽  
pp. 293-298 ◽  
Author(s):  
E. García-Toraño ◽  
V. Peyres ◽  
B. Caro ◽  
M. Roteta ◽  
D. Arnold ◽  
...  
Keyword(s):  
Detector System ◽  
Specific Detector

Estimation of amitriptyline and its metabolites in serum and urine by GLC using nitrogen-specific detector

1976 ◽  
Vol 9 ◽  
pp. 247-251 ◽  
Author(s):  
R.N. Gupta ◽  
G. Molnar ◽  
R.E. Hill ◽  
M.L. Gupta
Keyword(s):  
Specific Detector ◽  
Serum And Urine
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