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nickxiaotong: ½ð±Ò+1, »ý¼«½»Á÷ 2015-06-12 14:47:25
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nickxiaotong: ½ð±Ò+1, »ý¼«½»Á÷ 2015-06-12 14:47:25
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The Effect of Common Elements in Seawater to TN Test by Potassium Persulfate Digestion (UV Spectroscopy) Abstract£º The researcher selected some common elements/ions in seawater, to evaluate the affect to TN testing by UV Spectroscopy. The results show that: 1)Among the common elements selected, HCO3-¡¢Br-¡¢Fe3+¡¢Cr6+ affect TN testing. 2), the effect of HCO3- to testing increases fist, then decreases along with the increasing of concentration within the range of 0.142g/L to 1g/L. 3), the effect of ¦ÑBr- to TN testing decreases along with the increasing of its concentration within the range of 0.0674g/L~0.3g/L. 4), the effect of Fe3+ to TN testing increases fist, then decreases along with the increasing of concentration within the range of 0.5125g/L~2.05g/L. 5)the effect of Cr6+ to TN testing decreases fist, then increases along with the increasing of concentration within the range of 0.52g/L~2.08g/L. the research results aim to provide reference for interference elimination of seawater TN testing. Key words: common elements, UV, Potassium persulfate digestion, spectrum scanning |
3Â¥2015-06-12 09:35:30
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2Â¥2015-06-12 09:15:45













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