比色法测定矿样中低含量钨、钼,常用硫氰酸盐法进行分别测定。但此法灵敏度欠佳。对于<0.01％以下的样品的分析结果不好。目前以水杨基萤光酮-溴化十六烷基三甲基铵显色体系灵敏度最高,但钨、钼相互干扰,钛也有严重干扰,常采用预分离或还原络合掩蔽来消除干扰。至今尚未见到有关矿样分析中对低于0.01％钨、钼同时测定的比色法的报导。本文利用钨、钼相互干扰的特点,用双波长分光光度法同时测定钨、钼。运用电子计算机选 Colorimetric determination of low levels of tungsten, molybdenum, commonly used thiocyanate method were measured. However, this method is poor sensitivity. Analysis results for samples <0.01% or less are not good. Currently salicyl fluorone - cetyl trimethyl ammonium bromide color system most sensitive, but tungsten, molybdenum mutual interference, titanium also has serious interference, often using pre-separation or reduction complex masking to eliminate interference. To date, there has been no report about the simultaneous colorimetric determination of less than 0.01% tungsten and molybdenum in the mineral analysis. In this paper, the mutual interference of tungsten and molybdenum was used to determine tungsten and molybdenum simultaneously by dual-wavelength spectrophotometry. Use of computer selection