681. Polarographic reduction half-wave potentials of some phosphonic acids

Organic Polarography

“…The technique has also been used to study the behavior of albumin in the presence of cadmium chloride, cysteine, and cystine (345) and the content of thiol groups in fish muscle (165). The method has followed the changes in thiol groups in bovine retinal homogenates brought on by exposure t o light (114), the radiochemical deconiposition of methionine (284), and the level of nonprotein SH groups in the development of liver tumors in rats fed a carcinogenic azo dj.e (253).…”

“…Phosphorus-and Arsenic-Containing Compounds. Polarographic data are reported for a series of phosphonic acid derivatives (533), substituted phosphonic acids (345), phosphoric acid derivatives (533), bis(nitrophenyl)arsinic and arsonic acids (405), aminobis-(phenylarsinic) acids, phenylarsonic acid, and arsanilic acid (406). The variations in the diffusion currents and the similar half-wave potentials obtained for the phosphonic acid and phosphonic acid derivatives (533) suggest that hydrolysis products were responsible for the reduction waves.…”