| 一种新的阴离子表面活性剂电极的研制及应用 |
| 摘要点击 589 全文点击 719 投稿时间：1996-03-17 |
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| 中文关键词 离子选择电极 阴离子表面活性剂 环境监测 水样 |
| 英文关键词 ion selective electrode anionic surfactant enviromental monitoring water sample |
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| 中文摘要 |
| 研制出一种新的阴离子表面活性剂电极,电极膜最佳组成:THDA-DBS 5 mg,DBP 0.4ml,NB 0.3ml,PVC粉0.2g,电极线性范围1×10-3-8.1×10-7mol/L,级差58mV/dec,对DBS和SDS检测限分别为5.6×10-7,mol/L和7.4×10-7mol/L.电极制作简单,成本低廉,性能稳定,已用于环境水样中阴离子表面活性剂的快速准确测定。 |
| 英文摘要 |
| A new anionic surfactant selective electrode prepared by Coating a graphite rod with PVC compound.containing triheptyl-dedecyl ammonium and dodecylbenzene sulfonate THDA-DBS is deveped.The optimum coating membrane composition is THDA-DBS 5 mg,DBP 0.4 ml,NBO.3ml and PCC 0.2 g.The electrode exhibits nernstain response to the surfactant anions over the concentration range 1×10-3 to 8.1×10-7 mol/Lwith a slope of 58 mV per decade.The detection limits are 5.6×10-7 mol/L for DBS and 7.4×10-7 mol/L fad SDS.The electrode shows high stability and selectivity,and it is easy to make and sore,and inexpensive.The electrode has been used sucCeSSfully for the determination of anionic aetergents in environmental water samples. |
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