The reaction kinetics and mech-anism of molybdophosphate with 3-indoleacetic acid in pH=2 sulphuric acid solution has been studied by spectrophotometry.It was found that molaratio of the reaction was 1∶1 being first ...The reaction kinetics and mech-anism of molybdophosphate with 3-indoleacetic acid in pH=2 sulphuric acid solution has been studied by spectrophotometry.It was found that molaratio of the reaction was 1∶1 being first order in 3-indoleacetic acid.The effect of many factors on the reaction has been tested.The possibility of indirect determination of 3-indoleacetic acid by using this reaction has been discussed.展开更多
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...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.展开更多
文摘The reaction kinetics and mech-anism of molybdophosphate with 3-indoleacetic acid in pH=2 sulphuric acid solution has been studied by spectrophotometry.It was found that molaratio of the reaction was 1∶1 being first order in 3-indoleacetic acid.The effect of many factors on the reaction has been tested.The possibility of indirect determination of 3-indoleacetic acid by using this reaction has been discussed.
文摘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.
