Indirect determination of formaldehyde by alternating-current voltammetry at a hanging mercury drop in the presence of oxygen |
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| Authors: | A. G. Dedov N. K. Zaitsev P. M. Zaitsev A. V. Pavlyuk S. G. Suslov |
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| Affiliation: | (1) Department of Chemical Engineering and Ecology, Gubkin State University of Oil and Gas, Leninskii prosp. 65, 117917 Moscow, Russia |
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| Abstract: | An alternating-current voltammetric procedure has been developed for the indirect determination of formaldehyde as its hydrazone at a stationary hanging mercury drop over the formaldehyde concentration range from 0.2 to 15 mg/L in a buffer solution of pH 5.6 ± 0.4 without removing dissolved oxygen. An EKOTEST-VA miniature voltammetric analyzer connected to a computer was used. The detection limit for formaldehyde in the proposed procedure was 0.2 mg/L. |
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