The mechanism of the reaction between Au(III) and PADA in sodium dodecylsulphate
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- 作者：Sabriye Aydinoglua ; saydinoglu@cu.edu.tr" class="auth_mail" title="E-mail the corresponding author ; Tarita Biverb ; tarita.biver@unipi.it" class="auth_mail" title="E-mail the corresponding author ; Fernando Seccob ; fernando.secco@unipi.it" class="auth_mail" title="E-mail the corresponding author ; Marcella Venturinib ; marcella.venturini@dcci.unipi.it" class="auth_mail" title="E-mail the corresponding author
- 关键词：SDS ; Au(III)&ndash ; PADA complex ; Micellar catalysis ; Reaction mechanism ; Gold speciation
- 刊名：Colloids and Surfaces A: Physicochemical and Engineering Aspects
- 出版年：2016
- 出版时间：5 June 2016
- 年：2016
- 卷：498
- 期：Complete
- 页码：81-87
- 全文大小：1025 K
文摘
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Au(III) reacts with PADA on SDS surface; the Au-PADA complex is fully retained.
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The reaction rate is modulated by suitable changes of pH and NaCl concentration.
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The reaction at high pH is much faster owing to the high reactivity of the Au(OH)3(H2O) species.
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LM-MEUF of the Au(III)-PADA system in SDS provides high extraction yields.