Kamburova M
Department of Chemistry, Higher Institute of Agriculture, 4000 Plovdiv, Bulgaria.
Talanta. 1993 May;40(5):713-7. doi: 10.1016/0039-9140(93)80284-x.
The interaction of Cr(VI) and the thiazine dye Methylene Blue has been examined. The ion-associate formed is extractable into 1,2-dichlorethane. The optimum conditions have been established, and values obtained for the conditional extraction constant K'(ex), distribution constant K'(D) and association constant beta'. A sensitive and selective method for determination of microquantities of Cr(VI) in soils and alloys is suggested.
研究了六价铬（Cr(VI)）与噻嗪染料亚甲基蓝的相互作用。形成的离子缔合物可萃取到1,2 - 二氯乙烷中。确定了最佳条件，并获得了条件萃取常数K'(ex)、分配常数K'(D)和缔合常数β'的值。提出了一种测定土壤和合金中微量六价铬（Cr(VI)）的灵敏且选择性的方法。
