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BTAMoPACA与Fe(Ⅲ)、Al(Ⅲ)显色反应

Journal of Shenyang Institute of Chemical Technolgy(2002)

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Abstract
在pH5.9的邻苯二甲酸氢钾-氢氧化钠缓冲体系中,在CTMAB的存在下,Fe(Ⅲ)和Al(Ⅲ)与BTAMoPACA形成最大吸收分别为670 nm和690 nm的有色络合物,吸收光谱严重重叠.采用双波长标准加入法对该混合显色体系进行研究,建立铁、铝同时测定的新方法,应用于硅砖中痕量铁、铝的同时测定获得满意结果.
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Key words
simultaneous determination,aluminium,iron
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