化学通报（网络版）
化學通報（網絡版）
화학통보（망락판）
Chemistry Online
2005年
1期
1-4
,共4页
黄运瑞%黄豪%陈建国%马东兰
黃運瑞%黃豪%陳建國%馬東蘭
황운서%황호%진건국%마동란
N-丙基-N'-(氨基对苯磺酸钠)-硫脲(PSAT)%铂(Ⅳ)
N-丙基-N'-(氨基對苯磺痠鈉)-硫脲(PSAT)%鉑(Ⅳ)
N-병기-N'-(안기대분광산납)-류뇨(PSAT)%박(Ⅳ)
N-propyl-N'-(sodium p-Aminobenzen sulfonate) thiourea(PSAT)%Platinum
显色剂 N-丙基-N'-(氨基对苯磺酸钠)硫脲可与铂(Ⅳ)发生显色反应,生成绿色的水溶性配合物,最大吸收波长位于695.0nm,表观摩尔吸光系数ε695.0=2.32×104,铂含量在0~35μg/25mL范围内服从比耳定律,方法灵敏,简便,选择性非常好,用于样品测定,结果与标准值相符.
顯色劑 N-丙基-N'-(氨基對苯磺痠鈉)硫脲可與鉑(Ⅳ)髮生顯色反應,生成綠色的水溶性配閤物,最大吸收波長位于695.0nm,錶觀摩爾吸光繫數ε695.0=2.32×104,鉑含量在0~35μg/25mL範圍內服從比耳定律,方法靈敏,簡便,選擇性非常好,用于樣品測定,結果與標準值相符.
현색제 N-병기-N'-(안기대분광산납)류뇨가여박(Ⅳ)발생현색반응,생성록색적수용성배합물,최대흡수파장위우695.0nm,표관마이흡광계수ε695.0=2.32×104,박함량재0~35μg/25mL범위내복종비이정률,방법령민,간편,선택성비상호,용우양품측정,결과여표준치상부.
A reaction of Pt(Ⅳ) with N-propyl-N'-(sodium p-Aminobenzen sulfonate) Thiourea(PSAT) was studied by spectrophotometry. In the rang of pH3.4~4.2, Pt(Ⅳ) forms a stable complex with PSAT, maximum absorption of the complex is at 695.0nm and its molar absorptivity is 2.32×104 L·mol-1·cm-1. Beer’s law is obeyed in the rang of 0~1.4mg/25mL for Pt(Ⅳ). This method has been used for the determination of trace Pt(Ⅳ) in samples with satisfactory results.
