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文献首先报导原子吸收分光光度法测定钼,并指出必须使用富燃气空气—乙炔火焰。但当应用于微量钼分析时,由于灵敏度低而难以实现。同时各共存元素对测定钼的干扰也是相当复杂的。用笑气—乙炔火焰测定钼效果更好,如果选择最佳条件时,可成功地测定钢中0.001～6％的钼,且比空气—乙炔火焰测定钼时干扰少。但鉴于笑气昂贵,气源供应不便,我们对氧屏蔽空气—乙炔火焰测定钢中钼进行了研究。由于氧屏蔽空气—乙炔火焰有较高的温度及较强的还原性,所以测定钼的灵敏度虽
The literature first reported the atomic absorption spectrophotometric determination of molybdenum and pointed out the need to use a rich gas air-acetylene flame. However, when applied to trace molybdenum analysis, it is difficult to achieve due to its low sensitivity. At the same time the coexistence of elements on the determination of molybdenum interference is quite complex. Using molybdenum-acetylene flame to measure molybdenum is better. If the best conditions are chosen, 0.001 to 6% molybdenum can be successfully measured in steel and less interference than molybdenum in air-acetylene flame. However, in view of the high amusement, gas supply inconvenience, we conducted a study on the determination of molybdenum in oxygen by air-acetylene flame. Due to the oxygen shielding air - acetylene flame has a higher temperature and strong reducing, so the determination of the sensitivity of molybdenum though