氢化物发生-原子荧光法测定饲料中的镉  

Determination of cadmium in feed by the hydride generation-atomic fluorescence spectrometry

作　　者：付佐龙[1] 王金荣[1] 王晋晋[1] 娄鹏[1] 任皓[1] 房亚楠[1] 徐建超[1] 刘海涛[2] 

机构地区：[1]河南工业大学 [2]北京科创海光仪器有限公司

出　　处：《中国饲料》2009年第15期33-35,共3页China Feed

摘　　要：本实验采用氢化物发生-原子荧光光谱(HG-AFS)法,用盐酸、硝酸和高氯酸消解样品,以钴离子作为镉荧光信号增强剂,测定饲料及饲料添加剂中的镉。在本实验条件下测定,镉在0～2.0μg/L线性关系良好,回归方程y=1317.8x+78.203(r=0.9995),方法的相对标准偏差(RSD)为1.6%(n=11,2μg/L),检出限为0.08μg/L,加标回收率为78.3%～106.7%。用本方法测定饲料及饲料添加剂中的镉,操作简单快速,灵敏度高,重现性好,适合饲料及饲料添加剂中镉的检测分析。The samples digested with hydrochloric acid,nitric acid and perchloric acid,choosing Co^2＋ as the multiplier of the fluorescence, to determine the cadmium in feeds and feed additives by hydride generation-atomic fluorescence spectrometry （HG-AFS）.The regression equation of codmium was y=1317.8x＋78.203 （r=0.9995）in the range of 0 - 2.0 μg/L.The relative standard deviation（RSD）was 1.6 % （n=11,2 μg/L）,and detection limit was 0.08 μg/L.The recoveries of standard addition were 78.3 % - 106.7 %.This method is simple, rapid and reliable, suitable for determination and analysis of feeds and feed additive.

关 键 词：饲料 氢化物发生-原子荧光光谱 镉 

分 类 号：S816.17[农业科学—饲料科学]