密闭空间空气中24种金属气溶胶的原子吸收光谱法测定

用原子吸收光谱法，一次采样，同时测定连续密闭１２昼的窨 空气中２４种金属气溶胶，即银、铝、钡、钙、镉、钴、铬、铜、铁、钾、镁、钼、钠、镍、铅、锑、硒、硅、锡、锶、钛、钒和锌。根据空间金属气溶胶的浓度、性质和原子化行为的不同。将样品分为四组，采用干法和湿法结合处理样品，同时测定，回收率在８８－１１０％之间，各元素间基本无干扰，测定结果与文献报道值相近。

DETERMINATION OF 24 METALLIC ELEMENTS IN AIR OF ENCLOSED COMPARTMENT BY AAS

When the compartment has been continuously enclosed for 12 days, the air sample is collected once through operation, then 24 metallic elements in air are determined by AAS.The metallic elements, to be determined are Ag, Al, Ba, Ca, Cd, Co, Cr, Cu, Fe, K,Mg, Mn, Mo, Na, Ni, Ph, Sb, Se, St, Sn, Sr, Ti, V and Zn. The air sample is divided into 4 groups, and is treated by dry and wet-ashing processes based on different comcentration, property and atomization for metallic elements in air. No interference exists basically. The recovery is 88-110% .The results are close to those in the literature.