1968 Volume 41 Issue 12 Pages 2903-2908
The complexation of lead ion with arginine hydrochloride has been studied polarographically at 30°C. Four kinds of complex species, PbCl+, Pb(H2Arg)Cl2+, Pb(H2Arg)(OH)2+ and Pb(H2Arg)2(OH)3+ (where H2Arg denotes the arginine univalent cation) were confirmed in various pH range, respectively. The logarithmic dissociation constant of Pb(H2Arg)2(OH)3+ was found to be 10.33±0.03 at ionic strength 0.9.
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