作者用STPF技术、石墨炉原子吸收(GF-AAS),以硝酸钯及硝酸镁混合物作助灰化剂,用Zeeman背景校正法,同时直接测定了医用高矿质水中的As、Cd、Pb、Se的含量。这些医用水含有20～40 g/L的盐份,主要是一些氯化钠和氯化镁,及这些金属的碳酸氢盐和硫酸盐。样品在石墨炉中预原子化后冷却至20℃可以减少背景的吸收。将硝酸镁的用量在常规用量的基础上提高五倍,可以改善样品的峰形。在此条件下即使有干扰存在时对于氯型/碳酸氢盐型水的测定也不会产生干扰,但对于 The authors used STPF technique and graphite furnace atomic absorption spectrometry (GF-AAS) to make a mixture of palladium nitrate and magnesium nitrate as a ashing agent. The Zeeman background correction method was used to determine As, Cd, Pb and Se in medical high mineral water Content. These medical waters contain 20-40 g / L of salt, mostly sodium chloride and magnesium chloride, and the bicarbonates and sulfates of these metals. Pre-atomization of the sample in a graphite furnace and cooling to 20 ° C can reduce background absorption. The use of magnesium nitrate in the amount of conventional basis to increase five times, you can improve the sample peak shape. Under these conditions, the determination of chlorine type / bicarbonate type water does not cause any interference even in the presence of interference, but for