Determination of Cu,Cd and Pb in Grain by On line Flow Injection sulfhydrylated Cotton Fibre Separation and ICP AES
CHEN Jun (Wuhan Public Health & Anti-epidemic Station, 430022) and YANG Zhi gang (Hubei Import & Export Commodity Inspection Bureau of P.R.C , Wuhan 430022),Fenxi Shiyanshi,2000,19(3):45～47
A new kind of flow injection system was presented for the determination of Cu,Cd and Pb in grain by sulfhydrylated cotton fibre separation and ICP AES. The working parameters were discussed and optimized. The detection limits are 0.7μg/L ,0.5μg/L,2.9μg/L with RSD% 1.71%,2.94% and 4.49% for Cu, Cd, Pb, respectively. The recoveries are 87.8%~102.4%.