分光光度法测定大气气溶胶中铬
Environmental Technology(2006)
Abstract
研究采用分光光度法测定大气气溶胶中铬,测定波长为540nm。铬浓度在0.05μg /50mL-10μg/50mL范围内与吸光度呈良好的线性关系,大气气溶胶中铬的检出浓度为2.2×10-4μ g·m-3。当铬的浓度为0.07μg/50mL时,方法的相对标准偏差为12%(n =3),加标回收率为79%-113%。
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Key words
spectrophotometry,determination,atmospheric aerosols,chromium
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