| 引滦水中天然有机化合物的形态及紫外吸收特征 |
| 摘要点击 968 全文点击 1188 投稿时间：1992-06-30 |
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| 中文关键词 河水 TOC DOC 腐殖酸 形态分析 UV |
| 英文关键词 TOC, DOC, fractionation, hu-mic substances UV spectrometry |
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| 中文摘要 |
| 用改进的Leenheer法将引滦水中的天然有机化合物分离为悬浮态和溶解态两大类,后者又分离成憎水有机物、腐殖酸类、强阴离子化合物和其它亲水化合物4种.溶解态有机物含量在4-5mgC/L之间,其中半数左右为腐殖酸类,其紫外吸收强度远在其它形态之上.非极性憎水有机物在5%以下. |
| 英文摘要 |
| Organic compounds in water from Yinluan Channel was fractiona ted into five fractions of solids, hydrophobic compounds, humic substances, anions, and other dissolved hydrophillic compounds by filtration, adsorption on XAD-8 resin at different pH values, and adsorption on anion exchange resin. The total amount of DOC was found to be 4.75 mgC/L, half of which is humic substances. The fractions were characterized by UV spectrometry and over 90% of the UV absorption is attributed to the fraction of humic substances. |
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