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Citation: Lin Wenru. COULOMBMETRIC-NEW POLAROGRAPHIC ELECTROANALYSIS[J]. Chinese Journal of Applied Chemistry, ;1989, 6(6): 83-85. shu

COULOMBMETRIC-NEW POLAROGRAPHIC ELECTROANALYSIS

Lin Wenru

1.
Department of Chemistry, Fuzhou University

Received Date: 25 November 1988
Available Online: 6 June 1989

For the titration reaction aA+bB=A_aB_b,where A and B is the electrogenerated titrant and the substance to be determined respectively,following formula can be derived for combined coulombmetric——new polarographic determination. W_B=(biM_B)/(an_AF(t₁+(h₁/(h₁-h₂))t₂) where W_B=the weight of substance to be determined, i=current used in coulombmetry,t₁,t₂ are times of electrogeneration adopted near tbe cnd point of titration for B or slightly over the cnd point for A,h₁,h₂ are corresponding heights of current peak in. new polarographic determination of A or B at t₁ and t₂ respectively, M_B=formula weight of B,n_A=electron tranfer number formation of A.
- Coulombmetry,
- New polarography,
- Electroanalysis
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