Chromium speciation using aqueous biphasic systems: Development and mechanistic aspects
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- 作者：Pamela R. Patrí ; cio ; Roselaine C. Cunha ; Silvia J. Rodriguez Vargas ; Yara L. Coelho ; Luis H. Mendes da Silva ; Maria C. Hespanhol da Silva ; mariacarmo@ufv.br" class="auth_mail" title="E-mail the corresponding author ; mcarmohespanhol@gmail.com" class="auth_mail" title="E-mail the corresponding author
- 关键词：Chromium ; Speciation ; Aqueous biphasic system ; Fluorescence ; Green chemistry
- 刊名：Separation and Purification Technology
- 出版年：2016
- 出版时间：28 January 2016
- 年：2016
- 卷：158
- 期：Complete
- 页码：144-154
- 全文大小：742 K
文摘
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Aqueous biphasic system (ABS) is an environmental friendly speciation tool.
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The efficiency of chromium speciation depends of pH and several ABS parameters.
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Separation process is governed by macromolecules and Cr(VI) species interactions.
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Cr(VI) and Cr(III) go to macromolecule- and electrolyte-rich phases, respectively.
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Excellent separation factors between Cr(VI) and Cr(III) were obtained.