方法采用乙二酸四醋酸二钠滴定方法测定铋离子和铝离子；

Method Bismuth and aluminum were detected by titration with EDTA.

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方法采用乙二酸四醋酸二钠滴定方法测定铋离子和铝离子；

Method Bismuth and aluminum were detected by titration with EDTA.

youdao