Solid-phase reagent for analgin and ascorbic acid on the basis of a copper(II) complex with tetrabenzotetraazacyclohexadecine immobilized by adsorption on silica gel
Oa. Zaporozhets et al., Solid-phase reagent for analgin and ascorbic acid on the basis of a copper(II) complex with tetrabenzotetraazacyclohexadecine immobilized by adsorption on silica gel, J ANALYT CH, 56(6), 2001, pp. 524-529
The reactions of a number of natural organic reducing agents with a copper(
II) complex with tetrabenzo[b, f, j, n] [1, 5, 9, 13]tetraazacyclohexadecin
e adsorbed on silica were examined. A solid-phase reagent was proposed for
the sorption-spectrophotometric determination of Analgin and ascorbic acid
(c(min) = 0.91 and 0.06 mg/L, respectively) and for the visual test determi
nation of the above compounds (c(min) = 0.50 and 0.025 mg/sample, respectiv
ely).