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在金属钨及三氧化钨中铜的测定方法中,已报道的有发射光谱法,中子活化法、x荧光光谱法、分光光度法及原子吸收分光光度法等。所报道的原子吸收法分别要采用离子交换或电解的方法进行预分离富集,操作较为繁琐。为了提高原子吸收法测定铜的灵敏度,Venable等及Kornahrens等曾分别研究了十二烷基硫酸钠对铜的增感作用,并取得一定效果。本文对十二烷基硫酸钠在测定钨及三氧化钨中铜的增感作用及抑制干扰作用进行了研
Among tungsten and tungsten trioxide in copper determination methods have been reported by the emission spectrometry, neutron activation method, x fluorescence spectrometry, spectrophotometry and atomic absorption spectrophotometry. Reported by atomic absorption method, respectively, by ion exchange or electrolysis method for pre-separation and enrichment, the operation is more cumbersome. In order to improve the sensitivity of copper by atomic absorption spectrometry, Venable et al. And Kornahrens et al. Have respectively studied the sensitization effect of sodium dodecyl sulfate on copper, and achieved some results. In this paper, sodium dodecyl sulfate in the determination of tungsten and tungsten trioxide in the copper sensitization and inhibition of interference was studied