摘要
棉籽、土壤中残留的丙溴磷用丙酮提取，棉叶样品用甲醇提取，提取液经二氯甲烷萃取（土壤用石油醚），浓缩定容后，用气相色谱仪（火焰光度检测器，磷滤光片）检测。丙溴磷最小检出量为０．２纳克，方法添加回收率在８１．０～１０７．２％之间。
Profenofos in cotton seed and soil is extracted with actone, in cotton foliage is extracted with methynotl. The extract is rextracted with methylene chloride(extract of soil is re-extracted with petroleum ether) . The extract is concentrated to a small volumn. Profenofos is finally determined by gas chromatography using the flane photometry detector(FPD,phosphorus filter). The fortified recoveries of this method varied from 81. 0￣107. 2%. The minimum detectable value of samples is 0. 2ng.
出处
《农药》
CAS
北大核心
1996年第4期28-30,共3页
Agrochemicals
