前言硼的姜黄素比色法,在钢铁分析中已被广泛地采用,各国也都把它定为钢铁中微量硼测定的标准方法。姜黄素作为硼的显色剂,灵敏度很高,但共存元素有干扰。因而大都先用硼酸甲酯蒸馏法,离子交换法或汞阴极电解法分离后再进行测定。操作比较繁冗。有人曾提出利用形成 BF_4~-来消除干扰,进行直接测定,但灵敏度较低,又因换算因素过大,准确度也有问题。我们工农兵学员,遵照毛主席“教育必须为无产阶级政治服务,必须同生产劳动相结合”的教导,在工人师傅和革命教师的指导下,在毕业实践中,研究了在硫酸——醋酸介质中硼与姜黄素形成稳定络合物的 Preface Boron curcumin colorimetric method, has been widely used in steel analysis, countries have also made it as a standard method of determination of trace boron in steel. Curcumin as a boron color reagent, high sensitivity, but the interference of coexisting elements. Therefore, most of the first with methyl borate distillation, ion exchange or mercury cathode electrolysis separation after the determination. Operation is more cumbersome. It has been proposed to use the formation of BF_4 ~ - to eliminate interference, direct measurement, but less sensitive, but also because of the conversion factor is too large, accuracy is also a problem. In the graduation practice, under the guidance of the workers’ masters and revolutionary teachers, our workers, peasants and soldiers, in accordance with Chairman Mao’s teachings that education must serve the proletarian politics and must be combined with productive labor, Boron and curcumin in the formation of stable complexes