摘要
水产品经正己烷提取及碳酸钾反萃取,再经乙酸酐衍生后用于气相色谱法测定其中五氯酚的含量。选择三溴苯酚作为内标物。五氯酚的质量浓度在0.5～50.0μg.L-1范围内呈线性,方法的检出限(3S/N)为1.0μg.kg-1。方法用于水产品分析,回收率在81.0%～96.4%之间,相对标准偏差(n=6)在3.7%～9.3%之间。
A method of GC with internal standard method for the determination of pentachlorophenol（PCP） in aquatic products was proposed.The sample of aquatic product was extracted with n-hexane,and the extract obtained was back extracted with K2CO3 solution.The pentachlorophenol in the K2CO3 solution was then derivatized with acetic anhydride,and the derivatized product was determined by GC.The tribromophenol was selected as internal standard.Linear relationship of pentachlorophenol was kept in the range of 0.5-50.0 μg·L-1,with detection limit（3S/N） of 1.0 μg·kg-1.The proposed method was applied to the analysis of aquatic products,giving values of recovery and RSD′s（n=6） in the ranges of 81.0%-96.4% and 3.7%-9.3% respectively.
出处
《理化检验（化学分册）》
CAS
CSCD
北大核心
2011年第11期1307-1309,共3页
Physical Testing and Chemical Analysis(Part B:Chemical Analysis)
基金
徐州市科技基金项目(xj09117)
关键词
气相色谱法
内标法
水产品
五氯酚
三溴苯酚
GC
Internal standard method
Aquatic products
Pentachlorophenol
Tribromophenol
