论文部分内容阅读
谷物中熏蒸剂残留量的测定,近年来采用气相色谱分析法,这方面已有许多报导。我们采用稀酸回流,以石油醚为萃取剂,用其有电子捕获鉴定器的气相色谱仪,测定吞物中熏蒸剂溴甲烷、氯化苦、二硫化碳残留量,经初步试验,本方法回收率可达74-102％,其结果较为满意。分析方法一、仪器气相色谱仪:perkin-Elmer900型,N1~63电子捕获鉴定器,或Sp2305F型,H~3电子捕获鉴定器。气体流量
Determination of fumigant residues in cereals, and the use of gas chromatography in recent years, have been reported in many aspects. We use dilute acid reflux, petroleum ether as extractant, with its electron capture detector gas chromatograph, determination of swallowing fumigant methyl bromide, chloropicrin, carbon disulfide residues, the initial test, the recovery rate of this method can be Up to 74-102%, the result is more satisfactory. Analytical methods First, the instrument Gas chromatograph: perkin-Elmer900 type, N1 ~ 63 electron capture detector, or Sp2305F type, H ~ 3 electron capture detector. Gas flow