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低量钼的测定沿用硫脲-硫氰化钾比色法,灵敏度较低,仅能适用于含量在0.005%以上矿样中钼的测定。小于0.005%以下品位之试样,通常采用乙醚萃取法测定。在实践中乙醚萃取钼的硫氰化物时,由于乙醚层中常混有过氧化物,有机层易出现不正常的红色。
Determination of low amount of molybdenum along with thiourea - potassium thiocyanate colorimetric method, the sensitivity is low, only applicable to the determination of molybdenum content of more than 0.005% of ore samples. Less than 0.005% of the following grades of the sample, usually by ether extraction method. In practice, ether extraction of molybdenum sulfur cyanide, the ether layer often mixed with peroxide, the organic layer prone to abnormal red.