The sample was dissolved by HNO3-H2SO4.Interference of coexitent elements was eliminated by adding thiamine-ascorbic.As and Bi in molybdenum concentrates were determined by hydride generation atomic fluorescence spectrometry.%用硝酸-硫酸溶样,加硫脲-抗坏血酸掩蔽共存元素干扰,采用氢化物发生原子荧光光谱测定钼精矿中的砷和铋。
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