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SPECTROSCOPY ANALYSIS OF IRON OXIDE IN MINERAL AEROSOLS
Author(s): SHEN Zhenxing, ZHANG Xiaoye, JI Junfeng, CAO Junzuo, WANG Yaqiang, LU Huazuo
Pages: 103-
107
Year: 2003
Issue:
1
Journal: MARINE GEOLOGY & QUATERNARY GEOLOGY
Keyword: 矿物气溶胶; 铁氧化物; 反射光谱测定;
Abstract: 首次利用漫反射光谱装置(DRS)对中国大气粉尘气溶胶中铁氧化物进行了研究.结果表明,在可见光范围,粉尘样品反射光谱的一阶导数曲线,在435 nm和560 nm对样品中的针铁矿和赤铁矿有识别指示意义,样品中铁的含量与赤铁矿和针铁矿的一阶导数峰值相关性良好.同时发现,红、橙、黄3种颜色的反射率随样品中铁含量的增加而增加,而紫、绿、蓝3种颜色的反射率随样品中铁含量的增加而减少,这表明铁氧化物在粉尘气溶胶对可见光的散射和吸收效应中扮演着重要的角色.
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