Citation: Li Yuanqian , Zheng Xin , Hu Jingmei , Yang Jingguo , Ha Yuanqing . Simultaneous Spectrophotometric Determination of Lead and Cadmium by flow Injection-Charge-Coupled Device-Diode Array Detection. Chinese Journal of Analytical Chemistry, 1998, 26(7): 843-846. [复制]
Simultaneous Spectrophotometric Determination of Lead and Cadmium by flow Injection-Charge-Coupled Device-Diode Array Detection
Aflow injection-CCD diode array detection-spectrophotometric setup was established for simultaneous determination of lead and cadmium with meso-tetra(4-trimethylammoniumphenyl)porphine.The linear ranges of Cd and Ph were 0-2.0 mg/Land 0-2.5 mg/L, respectively.The detection limit was 0.014 mg/Lfor Cd and 0.015 mg/Lfor Pb.The sampling the was 60 samples/h.The proposed method has been successfully applied to the simultaneous determination of lead and cadmium in synthetic Samples and soaking solution of ceramics.The recovery of spiked samples was from 86.0% to 106.0%, and the relative standard deviation was less than 8.8%.