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首页> 外文期刊>The Journal of Supercritical Fluids >Determining phenol partition coefficient values in water-and industrial process water-supercritical CO2 systems using direct aqueous SFE apparatus simultaneously interfaced with on-line SFC and on-line HPLC
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Determining phenol partition coefficient values in water-and industrial process water-supercritical CO2 systems using direct aqueous SFE apparatus simultaneously interfaced with on-line SFC and on-line HPLC

机译：使用直接含水SFE装置与在线SFC和线HPLC中的直接含水SFE装置确定水和工业过程水超临界CO2系统中的酚分配系数值

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摘要

Instrument configurations and methods have been developed to rapidly obtain partition coefficient (K) values of organic compounds distributed between SF-CO2 and water. The procedures use a stirred aqueous SFE system interfaced with both on-line SFC and HPLC instruments. Phenol served as model compound. Initial work involved determining phenol K values using pure water standards through temperatures 318 K, 328 K, 338 K and eight pressures from 8.62 MPa to 20.68 MPa. Due to operational requirements of the two different chromatography interfaces, on-line SFC provided more advantages than on-line HPLC to determine K values. The combined instrumentation is ideally suited to determine K data for individual organic compounds present in complex mixtures partitioned between SF-CO2 and various industrial and geological sources of water including those associated with underground carbon dioxide storage facilities. The K values of phenol in steel industry process water containing many other SF-CO2 soluble organic pollutants were determined. (C) 2019 Elsevier B.V. All rights reserved.
机译：已经开发了仪器配置和方法以快速获得分布在SF-CO 2和水之间的有机化合物的分配系数（K）值。该程序使用与在线SFC和HPLC仪器连接的搅拌水性SFE系统。苯酚用作模型化合物。初始化工作涉及使用纯水标准通过温度318k，328k，338k和8.62mPa至20.68MPa的八个压力测定苯酚K值。由于两种不同的色谱界面的操作要求，在线SFC提供的优于线HPLC，以确定k值。该组合仪器非常适合于确定在SF-CO2和各种工业和地质源之间分配的复杂混合物中存在的个体有机化合物的K数据，包括与地下二氧化碳储存设施相关的水。确定了含有许多其他SF-CO2可溶性有机污染物的钢工业过程水中酚的K值。 （c）2019年Elsevier B.V.保留所有权利。

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