| 地面水中酚类污染物的树脂吸附富集反相高压液相色谱测定 |
| 摘要点击 1895 全文点击 1389 投稿时间：1994-03-15 |
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| 中文关键词 酚 GDX树脂 富集 高压液相色谱 |
| 英文关键词 phenols GDX resin concentration analysis by HPLC |
| DOI 10.13227/j.hjkx.19950222 |
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| 中文摘要 |
| 以乙腈-水-醋酸(31:68:1,V/V/V)为流动相的反相HPLC-UV法,可以方便地对水中酚类进行直接分离和分析。采用树脂吸附法为HPLC的预富集步骤,选用国产吸附树脂GDX-502为富集剂,二氧六环为洗脱剂,可以定量测定水中μg/L级以下的多种酚。在实验条件下,9种一元酚的平均变异系数为2.4%,其中8种酚的富集回收率大于90%。用本法测得的地面水的总酚含量与4-氨基安替比林法具有可比性。 |
| 英文摘要 |
| A simple method was described for the quantitative determination of phenols in surface water.The resin concentration technique was used instead of solvent extraction, by taking a macromolecular porous resin GDX-502 as an excellent adsorbent and dioxane as an excellent eluant. The eluate was analysed by a reversed-phase HPLC equipped with a UV detector. Recoveries of nine phenols were higher than 90%, except for 2, 4-dinitrophenol, and the average relative standard deviation (n= 5) was 2.4%. The detection limits of nine phenols were 2.0—8.6 ng. Trace concentration at μg/L level of these phenols pollutants can be determined. The developed method has been applied to determining phenols of urban lake water and river water with satisfactory results. |
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