Color Developmeat Reaction in the Temary System of Sc(Ⅲ)-CPA-pc-Ⅰ- and Its Analytical Application
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摘要: 系統地研究了Sc(Ⅲ)-CPA-pc-I-三元配合物顯色體系的最佳顯色條件及其主要性質,測定了共存離子的影響。鈧含量在每25ml含0~7.5μg范圍內服從比爾定律。表觀摩爾吸光系數為1.4×105l·cm-1·mol-1.采用該三元體系測定了合成試樣及攀枝花鐵礦中的微量鈧,結果與推薦值基本相符。
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關鍵詞:
- 分光光度 /
- 鈧 /
- 三元配合物/偶氮氯膦
Abstract: The optimum chromogenic conditions of the colored system that is ternary coordination compound Sc(Ⅲ)-CPA-pc-Ⅰ- and its main characters were studied systemati-cally. The influence of some foreign ions on this colored system was measured. Beer's law is obeyed over a range of 0~7.5 μg Sc/25ml. The relative molar absorpbility is 1.4×105 1·mol-1·cm-1. The system was used to determine the trace amount of scan-dium in a synthetic sample and in Pan Zhihua magnetite, the results were satisfied.-
Key words:
- spectrophotometry /
- scandium /
- ternary complexes/chlorophosphonazo
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