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近年来,对于测定矿石中少量钛(1v)曾提出不少光度分析方法,其中有些具有较高的灵敏度与选择性,但由于种种原因,在实际生产中未被广泛应用。目前普遍采用过氧化氢法和变色酸法,也是各有利弊。前者受钼、铬、钒,氟等离子干扰,灵敏度低;后者是变色酸本身不够稳定试剂空白也较大,灵敏度不如有些方法高,仍不是很理想的。
In recent years, for the determination of a small amount of titanium ore (1v) have proposed a number of photometric methods, some of which have high sensitivity and selectivity, but for various reasons, not widely used in the actual production. At present, hydrogen peroxide method and chromotropic acid method are widely used, and each has its advantages and disadvantages. The former by molybdenum, chromium, vanadium, fluorine plasma interference, low sensitivity; the latter is not enough color stability of the acid reagent blank is also larger, the sensitivity is not as high as some of the methods, is still not very satisfactory.