Synthesis of a new high sensitive water soluble chromogenic reagent mes o tetra (2 chloro 4 sulfophenyl)prophyrin and the conditions for the reaction of this reagent with cadmiun(Ⅱ) were studied. The apparent...Synthesis of a new high sensitive water soluble chromogenic reagent mes o tetra (2 chloro 4 sulfophenyl)prophyrin and the conditions for the reaction of this reagent with cadmiun(Ⅱ) were studied. The apparent molar absorption coefficient at 434 nm is 5.20×10 5 L·mol -1 ·cm -1 . The method has been applied to the determination of 5.0×10 -9 (content by weight) Cadmium(Ⅱ) in honey.展开更多
Spectrophotometry usually has a high sensitivity in determining the complexation of TAPP with metal ions. Therefore, as an excellent color-producing reagent, TAPP has already been used for the spectrophotometric deter...Spectrophotometry usually has a high sensitivity in determining the complexation of TAPP with metal ions. Therefore, as an excellent color-producing reagent, TAPP has already been used for the spectrophotometric determination of trace amounts of mercury (Ⅱ), cobalt (Ⅱ), manganese(Ⅱ), zinc (Ⅱ) and cadmium (Ⅱ)etc..展开更多
文摘Synthesis of a new high sensitive water soluble chromogenic reagent mes o tetra (2 chloro 4 sulfophenyl)prophyrin and the conditions for the reaction of this reagent with cadmiun(Ⅱ) were studied. The apparent molar absorption coefficient at 434 nm is 5.20×10 5 L·mol -1 ·cm -1 . The method has been applied to the determination of 5.0×10 -9 (content by weight) Cadmium(Ⅱ) in honey.
基金Supported by the National Natural Science Foundation of China
文摘Spectrophotometry usually has a high sensitivity in determining the complexation of TAPP with metal ions. Therefore, as an excellent color-producing reagent, TAPP has already been used for the spectrophotometric determination of trace amounts of mercury (Ⅱ), cobalt (Ⅱ), manganese(Ⅱ), zinc (Ⅱ) and cadmium (Ⅱ)etc..