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| 气相分子吸收光谱法测定废水中硫化物 |
| Determination of Sulfatein Waste Water by Absorption Spectrum of Gaseous Molecules |
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| DOI： |
| 中文关键词: 硫化物 气相分子 光谱法 工业废水 |
| 英文关键词: Sulfate Gaseous molecules Spectrum Industrialwaste water |
| 基金项目: |
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| 摘要点击次数: 1287 |
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| 中文摘要: |
| 应用分子吸收光谱法对不同行业废水中的硫化物进行了测定。当水样不含干扰物质时可直接测定 , 否则需经沉淀、过滤、洗涤前处理。 进行了与碘量法和吹气-对氨基二甲基苯胺光度法的对比试验, 所测结 果较为一致。分子吸收光谱法的线性范围为0.1 mg/L~ 4.0 mg/L。 取5 mL样品直接测定, 检测限为0.05 mg/L; 取50 mL样品经沉淀等前处理后, 检测限为0.005 mg/L 。测定速度快, 直接测定最多2 min 即可测一个样品; 经前处理, 测定一个样品约需 20 min 。 |
| 英文摘要: |
| Sulfatefrom different waste waters wasdetermined by absorptionspectrum ofgaseous molecules.Itcan be detected directly withoutinterference, otherwise pretreatment w as neededsuch as deposition,filtration and washing. Comparison showed theresults werethesame betweenIodine method and p-amino-dimethylanilinespectrophotometric method. Thelinearrange was 0.1 mg/L~ 4 mg/L. Detectionlimits were 0.05 mg/L for5 mL sample and 0.005 mg/L for50 mL sample andtreatmentsuch asdeposition. The methodisfastand direct. The detectiontook 2 minutesexcludingsampletreatmentand 20 minutesincluding treatment. |
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