二安替比林烷氧基苯基甲烷的合成及与铬(Ⅵ)显色反应的研究(英文)

Study on Synthesis of Alkoxy Derivatives of Diantipyrylphenylmethane and Their Color Reactions with Chromium (Ⅵ)

合成并鉴定了５个二安替比林烷氧基苯基甲烷新试剂：二安替比林邻甲氧基苯基甲烷（ＤＡｏＭＭ），二安替比林对甲氧基苯基甲烷（ＤＡｐＭＭ），二安替比林邻乙氧基苯基甲烷（ＤＡｐＥＭ），二安替比林间乙氧基苯基甲烷（ＤＡｍＥＭ），二安替比林对乙氧基苯基甲烷（ＤＡｐＥＭ），研究了在磷酸介质中它们与铬（Ⅵ）的显色反应，建立了５个测定铬（Ⅵ）的新方法．摩尔吸光系数在２．４×１０５Ｌ·ｍｏｌ－１·ｃｍ－１～１．６×１０６Ｌ·ｍｏｌ－１·ｃｍ－１之间，这些体系用在废水中铬的测定。

Five new alkoxy derivatives of diantipyrylphenylmethane were synthesized and identified.They are daintipyryl (o methoxy) phenylmethane(DAoMM),daintipyryl (p methoxy) phenylmethane(DApMM),aintipyryl (o ethoxy) phenylmethane(DAoEM),daintipyryl (m ethoxy) phenylmethane(DAmEM),daintipyryl (p ethoxy) phenylmethane (DApEM).Their color reactions with chromium (Ⅴ) in the presence of H 3PO 4 and Mn (Ⅱ) were studied,and five new supersensitively spectrophotometries methods for determination of chromium (Ⅵ) were established.The malor absorptivity range from 2.4×10 5L·mol -1 ·cm -1 to 1.6×10 6L·mol -1 ·cm -1 .These methods appear to have a bright future.