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In NH 3 NH 4Cl buffer solution (pH=10) the reaction product of phosphomolybdate with 1,4-dithiothreitol(DTT) can be reduced with a sensitive adsorptive wave at the Ep of about.-1.10v(vs.SCE).The derivative peak height is proportional to the concentration of 1,4-dithiothreitol over the range of 5.0×10 -8 mol/L-1.0×10 -5 mol/L. the detection limit is 2.0×10 -8 mol/L and the behavior of the polarographic wave has also been studied.
The reaction product of phosphomolybdate with 1,4-dithiothreitol (DTT) can be reduced with a sensitive adsorptive wave at the Ep of about-1.10v (vs. SCE). The NH 3 NH 4 Cl buffer solution (pH = 10) The derivative peak height is proportional to the concentration of 1,4-dithiothreitol over the range of 5.0 × 10 -8 mol / L to 1.0 × 10 -5 mol / L. The detection limit is 2.0 × 10 -8 mol / L and the the behavior of the polarographic wave has also been studied.