近年来,采用姜黄素直接比色法测定合金和第7卷第2期分析化学-承钢中的微量硼,已有不少报导。我们试验了小体积显色法,并加入适量的脱水剂乙酸丁醋,以提高直接比色法的稳定性。采用乙酸钱缓冲溶液消除质子型姜黄素的干扰,且降低姜黄素溶液的吸光度。方法灵敏度较高,其络合物的克分 In recent years, the use of curcumin direct colorimetric determination of the alloy and Volume 7, No. 2 analytical chemistry - bearing boron in the trace boron, there have been many reports. We tested a small volume colorimetric method, and adding an appropriate amount of dehydrating agent butyl acetate to improve the stability of the direct colorimetric method. Acetanic acid buffer solution to eliminate the disturbance of proton curcumin, and reduce the absorbance of curcumin solution. High sensitivity method, the complex of gram points