中山大学学报（自然科学版）Issue(6)：104-109,6.
气相色谱法检测鱼和虾中复硝酚钠残留量
Residue Content of Sodium Nitrophenolate in Fish and Shrimp Determined by Gas Chromatography
摘要
Abstract
After the samples were extracted by ethyl acetate,the supernatant were cleansed by acidic a-lumina and extracted by potassium carbonate.The extracts were then reacted with acetic anhydride.The products were detected by gas chromatography with ECD detector via an external standard method follow-ing being extracted by n-hexane.The linearity of three compounds were held in 5 ~1 00 μg/L,with cor-relation coefficient R2 >0.999 .The detection limits for the GC method (S/N=3 )of the nitrophenolate were 5 μg/kg.The tests for recovery were carried by addition of standard at concentration of 1 0 ~1 00μg/kg.The result indicated that the residue content of p-nitrophenol sodium,o-nitrophenol sodium and 2-methoxy-5-nitropenolate sodium were 86.4% ~89.6%,82.8% ~84.3% and 89.9% ~92.2%, respectively,while the relative standard deviations were less than 1 5%.This method can be used to de-termine the residue content of nitrophenolate in edible portion of fish and shrimp.关键词
气相色谱法/鱼/虾/复硝酚钠/残留Key words
Gas chromatography/fish/shrimp/sodium nitrophenolate/residue分类
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邢丽红,冷凯良,孙伟红,翟毓秀,李兆新,谭志军,苗钧魁..气相色谱法检测鱼和虾中复硝酚钠残留量[J].中山大学学报（自然科学版）,2013,(6):104-109,6.基金项目
国家“十二五”科技支撑计划资助项目 （）
