| 天然水重金属原子吸收法测定中螯合树脂在线预浓集 |
| 摘要点击 1409 全文点击 1423 投稿时间：1995-04-17 |
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| 中文关键词 流动注射分析 离子交换浓集 原子吸收 铜 铅 镉 锰 |
| 英文关键词 flow injection analysis (FIA) ionexchange preconcentration atomic absorptionspectrometry copper lead cadmium manganese |
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| 中文摘要 |
| 采用流动注射,离子交换与原子吸收联用技术,建立了天然水中铜、铅、镉和锰等重金属离子的在线预浓集火焰原子吸收分析方法。该方法具有快速、在线、微量、自动、密闭等优点,分析作频率为45/h,浓集倍数约20倍,相对标准偏差约为2.0%,适用于天然水中这些痕量离子的日常监测。文中讨论了各种实验条件对浓集效率的影响及其参数的选定。 |
| 英文摘要 |
| The title method was developed,and some practical considerations in the design of on-line colunm preconcentration FIA system for FAAS were studied. The relative standard deviation was about 2.0% (n=11) at a sampling frequency of 45h-1 with an enrichment of around 20 times.The advantages,such as high-efficiency,on-line.accuracy,precision,micro-amount of sainble,automation et al.,made it possible to be applied to the routine analysis of natural waters. |
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