[Simultaneous, gas-chromatographic determination of ethyleneoxide, ethylenechlorohydrine and ethyleneglycol in grain (author's transl)].
The not comminuted grain (10 g) is extracted for 24 hrs (25 degrees C) with 5 ml methanol (shaking machine), then the fluid phase is separated by centrifugal filtration and directly injected into the GC (10 mu). The GC starting temperature (60 degrees C) is adjusted by cooling the oven with Co2. Yield: EO 73% (concentr. range 25 ppm); ECH 93% (concentr. r. 50 ppm); EG 99% (conc. r. 50 ppm). Standard deviation: EO s = +/- 1,70 ppm (N = 24, conc. r. 10 ppm), ECH s = +/- 1,15 ppm (N = 24, conc. r. 20--30 ppm), EG s = +/- 0,62 ppm, (conc. r. 15--30 ppm, N = 24).
D002728:Chlorohydrins / Q000032:analysis*; D002849:Chromatography, Gas; D002523:Edible Grain / Q000032:analysis*; D005023:Ethylene Chlorohydrin / Q000032:analysis*; D005026:Ethylene Glycols / Q000032:analysis*; D005027:Ethylene Oxide / Q000032:analysis*; D014908:Triticum / Q000033:anatomy & histology
D002728:Chlorohydrins; D005026:Ethylene Glycols; D005023:Ethylene Chlorohydrin; D005027:Ethylene Oxide
Simultane, gas-chromatographische Bestimmung von Athylenoxis, Athylenchlorhydrin und Athylenglykol in Getreide