现代农药
現代農藥
현대농약
MODERN AGROCHEMICALS
2015年
1期
32-34
,共3页
田海%吴琼%张月%赵方方%吕岱竹%李建国
田海%吳瓊%張月%趙方方%呂岱竹%李建國
전해%오경%장월%조방방%려대죽%리건국
气相色谱-电子捕获检测器%二硫代氨基甲酸盐 (酯)%残留量%蔬菜粉
氣相色譜-電子捕穫檢測器%二硫代氨基甲痠鹽 (酯)%殘留量%蔬菜粉
기상색보-전자포획검측기%이류대안기갑산염 (지)%잔류량%소채분
GC-μECD%dithiocarbamate%residue%vegetable powder
二硫代氨基甲酸盐(酯)(DTCs)类农药在SnCl2-HCl溶液中酸解生成CS2气体,CS2气体被正己烷吸收后,使用气相色谱-电子捕获检测器测定CS2含量,即可得到DTCs农药的残留量。采用该方法测定蔬菜粉中代森锰锌、代森联、丙森锌残留,在添加水平为10μg时,平均回收率为79.8%~93.4%,相对标准偏差为1.9%~4.6%。方法的检出限为0.01~0.04 mg/kg,定量限为0.3~1.0 mg/kg。该方法简单、准确,适用于农产品中DTCs农药的残留检测。
二硫代氨基甲痠鹽(酯)(DTCs)類農藥在SnCl2-HCl溶液中痠解生成CS2氣體,CS2氣體被正己烷吸收後,使用氣相色譜-電子捕穫檢測器測定CS2含量,即可得到DTCs農藥的殘留量。採用該方法測定蔬菜粉中代森錳鋅、代森聯、丙森鋅殘留,在添加水平為10μg時,平均迴收率為79.8%~93.4%,相對標準偏差為1.9%~4.6%。方法的檢齣限為0.01~0.04 mg/kg,定量限為0.3~1.0 mg/kg。該方法簡單、準確,適用于農產品中DTCs農藥的殘留檢測。
이류대안기갑산염(지)(DTCs)류농약재SnCl2-HCl용액중산해생성CS2기체,CS2기체피정기완흡수후,사용기상색보-전자포획검측기측정CS2함량,즉가득도DTCs농약적잔류량。채용해방법측정소채분중대삼맹자、대삼련、병삼자잔류,재첨가수평위10μg시,평균회수솔위79.8%~93.4%,상대표준편차위1.9%~4.6%。방법적검출한위0.01~0.04 mg/kg,정량한위0.3~1.0 mg/kg。해방법간단、준학,괄용우농산품중DTCs농약적잔류검측。
The dithiocarbamate residues were decomposed to carbon disulfide (CS2) in SnCl2-HCI solution.The liberated CS2 was absorbed by hexane,and then determined by gas chromatography with electron capture detection (μECD), the results were expressed as the residues of dithiocabamates. The residues of mancozeb, metiram and propineb in vegetable powder were determined by GC-μECD. The results showed that at the fortified level of 10μg, the average recoveries ranged from 79.8% to 93.4% with the relative standard deviations (RSD) of 1.9%-4.6%. The limits of detection of the 3 dithiocarbamates residues in the vegetable powder were 0.01-0.04 mg/kg, and the limits of quantification were 0.3-1.0 mg/kg. The method was simple, accurate, reproducible, and suitable for the determination of the dithiocarbamate residues in agricultural products.