| 石墨探针采样/石墨探针炉原子吸收光谱测定APM中痕量铜 |
| 摘要点击 1226 全文点击 1444 投稿时间：1993-03-25 |
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| 中文关键词 痕量铜 大气微粒物质 石墨探针 原子吸收光谱 |
| 英文关键词 trace copper atmospheric particulate matter graphite probe atomic absorption spectrpmetry |
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| 中文摘要 |
| 采用一定规格的石墨探针可直接收集大气微粒物质(APM).然后,立即采用石墨探针炉原子吸收光谱测定收集在探针上的APM中痕量铜.方法简便,快速.在0-550ng/mL范围内,铜的浓度与峰面积吸光度咪良好的线性关系.铜的特征量为22.0pg,检出限为6.6ng/mL.分析标准参比材料,铜的回收率达98%,相对标准偏差为3.3%. |
| 英文摘要 |
| Direct determination of trace copper in atmospheric particulate matter was done by graphite probe furnace atomic absorption spectrometry after collection with a graphite probe filter.The new method was simple and rapid.The concentration of copper and ahsorbance (peak-area mode) showed excellent linear relation in the range of 0-550 ng/ml.The characteristic mass and detection limit of copper were 22.Ong and 6.6ng/ml, respectively.The results of analysis of the National Bureau of Standard (NBS), Standard Reference Material (SRM) No.1648, urban paniculate matter, gave recovery of 98% and a precision of 3.3% RSD. |
