火焰原子吸收法测定水中的总铬 |
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引用本文: | 姜秋俚,孙铁珩,张见昕,刘畅,付友生. 火焰原子吸收法测定水中的总铬[J]. 环境保护科学, 2011, 37(6): 94-97 |
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作者姓名: | 姜秋俚 孙铁珩 张见昕 刘畅 付友生 |
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作者单位: | 1. 东北大学资源与土木工程学院 沈阳 110004;辽宁省环境监测实验中心 沈阳110031 2. 东北大学资源与土木工程学院 沈阳 110004;沈阳大学环境工程重点实验室 沈阳 110044 3. 辽宁省环境监测实验中心 沈阳110031 |
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摘 要: | 用火焰原子吸收光谱法测定水中总铬,乙炔流量100L/h、燃烧头高度为9mm、狭缝宽度0.2 nm时,灵敏度和重现性最好.1 mg/L铬溶液中盐酸含量5%、氯化铵含量0.5%时,吸光度较高,相对标准偏差最低.该方法操作简便,灵敏度好,精确度和准确度高,便于推广,适合水中总铬的测定.
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关 键 词: | 火焰原子吸收法 水 总铬 |
Discussion on Determination of Total Chromium in Water by FAAS |
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Abstract: | Based on determination of total chromium in water by FAAS (Flame Atomic Absorption Spectrometry), sensitivity and reproducibility are best under the conditon of acetylene flux is 100 L/h, burner height is 9mm, slit width is 0.2 nm. Absorbency is higher and relative standard deviation is the lowest while hydrochloric acid in 1mg/L chromium solution is 5% and ammonium chloride is 0.5%. This method is easy to spread for determination of total chromium in water owe to its easy operation, high sensitivity, precision and accuracy. |
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Keywords: | Flame Atomic Absorption Spectrometry Water Total Chromium |
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