石墨炉原子吸收光谱法测定糖尿病患者血清中微量锰和铬

摘要

本文采用石墨炉原子吸收光谱法测定糖尿病患者血清中微量锰和铬。测定条件:锰波长为279.5nm,狭缝1.9(?),灯电流6mA,干燥150℃/30s,灰化1000℃/20s,原子化2200℃/4s。铬波长为357.9nm,狭缝3.8(?),灯电流6mA,干燥150℃/30s,灰化500℃/20s,原子化2500℃/4s。方法的回收率、灵敏度和CV%:锰为105.0%,0.77PPb,6.5%。铬为96.8%,0.30ppb,4.5%。