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XU QINGHUI,HUANG JIANGHUAI,LÜ RONGHUI,HUANG MINFEN. 1984. RESEARCH ON THE DETERMINATION OF Pb, Cd, Cu AND Zn IN SEAWATER BY STRIPPING VOLTAMMETRY. Acta Oceanologica Sinica, (3):369－375
RESEARCH ON THE DETERMINATION OF Pb, Cd, Cu AND Zn IN SEAWATER BY STRIPPING VOLTAMMETRY
RESEARCH ON THE DETERMINATION OF Pb, Cd, Cu AND Zn IN SEAWATER BY STRIPPING VOLTAMMETRY
Received:September 01, 1982  Revised:August 10, 1983
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Author NameAffiliation
XU QINGHUI Third Institute of Oceanography, National Bureau of Oceanography, Xiamen 
HUANG JIANGHUAI Third Institute of Oceanography, National Bureau of Oceanography, Xiamen 
LÜ RONGHUI Third Institute of Oceanography, National Bureau of Oceanography, Xiamen 
HUANG MINFEN Third Institute of Oceanography, National Bureau of Oceanography, Xiamen 
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Abstract:
      In this paper, a comparison viral made between the two results of determining Pb, Cd, Cu and Zn in seawater by direct current (tripping voltammetry (DCS) with rotating glass carbon electrode and by differential pulse stripping voltammetry (DPS) with hanging mercury drop electrode (HMDE).By DCS, the range of linear calibration curves obtained was 4×10-3 M-2×10-7M for Cu, Zn and Cd, and 4×10-9M-2×10-3M for Pb.By using DPS, the range of linear calibration curve was as follows:Cu 0.65-1.9 ppb; Pb 1.0-10 ppb; Zn 0.65-2.0 ppb; Cd 0.02-0.14 ppb.It was found that DCS could be used for determining Pb, Cu, Zn in coastal waters, but it is necessary to add gallium ion to it to eliminate the interference of Cu-Zn inter-metallic compound for determining Zn.The DPS is better for determinig Cd.
中文摘要:
      In this paper, a comparison viral made between the two results of determining Pb, Cd, Cu and Zn in seawater by direct current (tripping voltammetry (DCS) with rotating glass carbon electrode and by differential pulse stripping voltammetry (DPS) with hanging mercury drop electrode (HMDE).By DCS, the range of linear calibration curves obtained was 4×10-3 M-2×10-7M for Cu, Zn and Cd, and 4×10-9M-2×10-3M for Pb.By using DPS, the range of linear calibration curve was as follows:Cu 0.65-1.9 ppb; Pb 1.0-10 ppb; Zn 0.65-2.0 ppb; Cd 0.02-0.14 ppb.It was found that DCS could be used for determining Pb, Cu, Zn in coastal waters, but it is necessary to add gallium ion to it to eliminate the interference of Cu-Zn inter-metallic compound for determining Zn.The DPS is better for determinig Cd.
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