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普通石墨炉原子吸收法测定碳素钢和铸铁中As、Ni、Co和v等微量元素,受基体干扰,谱线互相重迭,用氘灯法扣除大量铁存在造成的光谱干扰时,背景校正上的误差较大,影响测定结果的可靠性。塞曼效应原子吸收仪(商品ZAAS),成功地解决了背景吸收干扰问题。但是,对于多数元素言,ZAAS法的灵敏度低于一般原子吸收法,而且,难熔高温元素和稀土元素的记忆效应较大。因而,该法用于解决复杂基体中微量元素分析仍受到一定的限制。
Common graphite furnace atomic absorption method for the determination of As, Ni, Co and V and other trace elements in carbon steel and cast iron, interference by the substrate, the spectral lines overlap each other, deuterium lamp method to subtract the spectrum interference caused by the presence of a large amount of iron, the background correction On the larger error, the reliability of the determination results. Zeeman Effect Atomic Absorption (ZAAS), successfully solved the problem of background absorption interference. However, the sensitivity of ZAAS method is lower than that of general atomic absorption method for most elements, and the memory effect of refractory hot elements and rare earth elements is larger. Therefore, the method used to solve the complex matrix trace element analysis is still subject to certain restrictions.