论文部分内容阅读
含鎳铬的耐热不銹鋼中钛的测定,現在多用过氧化氫比色法,此法灵敏度低,克分子吸光系数为740,且釩钼等干扰。近年来,提出测定钛的新方法很多,其中以应用变色酸比色测定钛的研究,较为实用,其中以应用变色酸比色测定钛的研究,较为实用。应用变色酸测定钛的最大优点是灵敏度高,比H_2O_2大20倍以上;选择性强,几乎合金中所有元素存在均不干扰,因而无需进行分离,手續
Nickel-chromium-containing heat-resistant stainless steel in the determination of titanium, and now more than hydrogen peroxide colorimetry, this method has low sensitivity, molecular absorption coefficient of 740, and vanadium molybdenum and other interference. In recent years, many new methods for the determination of titanium are proposed. Among them, the study on the colorimetric determination of titanium by chromochromic acid colorimetry is more practical. The study on the determination of titanium by chromochromic acid colorimetry is more practical. Application of chromotropic acid determination of titanium is the biggest advantage of high sensitivity, more than 20 times larger than H_2O_2; selectivity is strong, almost all the elements in the alloy are not interfering, so there is no need for separation, procedures