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本文拟定了同时测定废水中钒、铬,铜、锰和钴的光谱分析方法。以钪作内标,氟化钾-磷酸氢二钠作载体,在含有少量硫酸的盐酸溶液中,用WPF-2型交流电弧光源,Q-24型摄谱仪,小平顶石墨电极溶液干渣法进行测定。此法灵敏,简便、试样不予分离。析出限对V,Cr,Mn、Co为1.25×10~(-6)%;Cu为5×10~(-5)%,回收率在86—123%,相对标准偏差为0.8—9.1%。
This paper developed a simultaneous determination of vanadium, chromium, copper, manganese and cobalt in wastewater spectrometry. Scandium as an internal standard, potassium fluoride - disodium hydrogen phosphate as a carrier, containing a small amount of sulfuric acid in hydrochloric acid solution, using WPF-2 AC arc light source, Q-24 spectrograph, Xiaoping Ping graphite electrode solution of dry residue Method for determination. This method is sensitive, simple, the sample will not be separated. The limit of precipitation was 1.25 × 10 -6% for V, Cr, Mn and Co, 5 × 10 -5% for Cu, and the recovery was 86-123%. The relative standard deviations were 0.8-9.1%.