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本文根据文献〔见Talanta,32(6),447(1985)〕的报道,在室温的弱酸介质中,硼与苦杏仁酸形成的络阴离子能与孔雀绿形成蓝绿色的三元离子缔合物,可用苯萃取,方法简单快速、重现性好,铁不干扰测定,也不需要加入还原剂,该缔合物还相当稳定。我们在此基础上建立了钢中硼的测定方法,并对显色条件进行了实验,发现下列元素(mg)不干扰测定:钼(1)、锰(6)、
According to the literature [see Talanta, 32 (6), 447 (1985)], the complex anion formed between boron and mandelic acid at room temperature in weak acid medium can form cyan-ternary ternary ion association with malachite green , Available benzene extraction, the method is simple and rapid, reproducible, iron does not interfere with the determination, do not need to add a reducing agent, the associate is still quite stable. Based on this, we established a method for the determination of boron in steel and conducted experiments on the conditions of color development. The following elements (mg) were found to not interfere with the determination: molybdenum (1), manganese (6),