| 大气气溶胶酸式硫酸盐的FTIR研究 |
| 摘要点击 1776 全文点击 2525 投稿时间：1997-04-04 |
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| 中文关键词 气溶胶 酸式硫酸盐 FTIR定量分析 中关村地区 大气监测 |
| 英文关键词 aerosols bisulfate FTIR quantative analysis Zhong Guancun Region atmospheric determination |
| DOI 10.13227/j.hjkx.19970603 |
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| 中文摘要 |
| 在详细分析了硫酸盐和酸式硫酸盐的红外光谱特征的基础上,利用傅利叶变换红外光谱仪,KBr压片的制样方式,选择750-500cm-1作为定量范围,对1994年春、夏、冬和1995年春季北京中关村地区气溶胶样品中的SO42-和HSO4-进行了定量测定,SO42-和HSO4-在大气中的含量分别为2.56至60.4μg/m3和未检出至5.7μg/m3.从而建立了直接测定大气气溶胶中酸式硫酸盐的傅利叶变换红外光谱法。 |
| 英文摘要 |
| This paper discribed the difference about IR absorption between sulfate and bisulfate,and chose the 750-500cm-1 as quantative analysis range for sulfate and bisulfate.Sulfate and bisulfate in aerosol samples which collected from Zhong Guancun,Beijing in 1994-1995,prepared by pressing into KBr pellets,were analyzed using fourier transform infrared(FTIR)transmission spectroscopy.Analysis results is 2.56-60.4μg·m-3 and ND-5.7μg·m-3 in terms of sulfate and bisulfate,respectively.The method presented in this paper offers a direct quantative analysis for bisulfate. |
