丁二酮肟分光光度法测定大气颗粒物中的镍  

DETERMINATION OF NICKEL IN THE ATMOSPHERE BY DIACETYLDIOXIME SPECTROPHOTOMETRY

作　　者：刘健[1] 张恒[1] 李庆银 杨秀丽 

机构地区：[1]济南市环保监测站,250014 [2]济南市黄河洛口水文站,250032

出　　处：《化学分析计量》2002年第1期21-23,共3页Chemical Analysis And Meterage

摘　　要：采用硝酸、高氯酸消解大气颗粒物样品,以丁二酮肟显色,正丁醇萃取分离,分光光度法测定大气颗粒物中镍的含量。线性回归方程为A=0.2056c-8.027×10^(-3),相关系数r=0.9994,线性范围为0.01～2.44 mg/L,回收率为96％～105％,RSD为0.2％～1.5％,以3倍信噪比计算,镍的检出限为7.5×10^(-3)mg/L。The determination of nickel in the atmosphere by diacetyldioxime spectrophotometry is introduced. The regression equation is A = 0. 2056c -8. 027 × 10-3, the correlative coefficient is r = 0. 9994,the linear range is 0.01 -2.44 mg/L, the recovery is 96% - 105% and RSD is 0. 2% - 1.5% . Calaulating at three times of the signal noise ratio, the detection limit of nickel is 7. 5 × 10-3 mg/L.

关 键 词：丁二酮肟 分光光度法 镍 大气颗粒物 测定 大气污染 

分 类 号：X513[环境科学与工程—环境工程] X831.102