应用氟离子选择电极电位滴定合金中的铝,已有较多资料作了介绍,本文在此基础上,提出了一些掩蔽剂,通过两厂实践,应用Zn—EbTA或抗坏血酸掩蔽Fe~(3+),抗坏血酸或甘露醇掩蔽钛,Zn—EbTA或苦杏仁酸掩蔽Zr,由此制订了钢堤高温合金中铝的电位滴定分析方法。实验部分一、试验方法1、预定终点,于25毫升容量瓶上,加入0.04M(0.004M)铝标准溶液1毫升,加少许水,用1N氢氧化钠溶液调至PH为3.5～ Application of fluoride ion selective electrode potentiometric titration of aluminum in the alloy has been more information has been introduced. Based on this, some masking agents are proposed. Through the practice of two plants, Zn-EbTA or ascorbic acid is used to mask Fe ~ (3+ ), Ascorbic acid or mannitol-masked titanium, Zn-EbTA or mandelic acid masking Zr. Thus, a potential titration analysis method for aluminum in steel dike superalloy was developed. Experimental part First, the test method 1, the intended end, in a 25 ml volumetric flask, add 0.04M (0.004M) aluminum standard solution 1 ml, add a little water, with 1N sodium hydroxide solution adjusted to pH 3.5 ~