摘要
建立了一种测定进口火龙果中六六六滴滴涕残留量的方法。样品前处理净化过程采用硫酸磺化法,用R tx-1毛细管柱分离,ECD检测器检测。该方法的检出限α-HCH、β-HCH、γ-HCH、δ-HCH、ρ,ρ’-DDE、o,ρ’-DDT、ρ,ρ’-DDD、ρ,ρ’-DDT均为0.001mg/kg。回收率在90%~125%之间,相对标准偏差分别为1%~6%。操作简单,有较高的精密度,能够满足越南进口火龙果中六六六、滴滴涕含量测定的要求。
A method for determination of HCH and DDT residues in the imported dragon fruit was established.Sample pretreatment was using sulfuric acid purification process and sulfonated,and separation was using Rtx-1 capillary column,and ECD detector.The detection limit was 0.001 mg/kg,including α-HCH,β-HCH,γ-HCH,δ-HCH,ρ,ρ＇-DDE,o,ρ＇-DDT,ρ,ρ＇-DDD,and ρ,ρ＇-DDT.Recovery rate was between 90%~125% and relative standard deviation was 1%~6%.This method was simple operation,high precision,and can satisfy determination requirements of HCH and DDT residue in the imported dragon fruits of Vietnam.
出处
《广州化工》
CAS
2010年第9期128-129,共2页
GuangZhou Chemical Industry
