A Route to Unbuffered pH Monitoring: A Novel Electrochemical Approach
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- 作者：Chencheng Daia ; b ; Chun-Wai I. Chana ; b ; William Barrowa ; b ; Anna Smitha ; b ; Peng Songa ; b ; Francois Potiera ; Jay D. Wadhawanc ; Adrian C. Fisherb ; acf42@cam.ac.uk" class="auth_mail" title="E-mail the corresponding author ; Nathan S. Lawrencea ; NLawrence@slb.com" class="auth_mail" title="E-mail the corresponding author
- 关键词：pH sensor ; unbuffered media ; carbon paste ; dihydroxyquinone derivatives ; hydrogen bonding
- 刊名：Electrochimica Acta
- 出版年：2016
- 出版时间：1 February 2016
- 年：2016
- 卷：190
- 期：Complete
- 页码：879-886
- 全文大小：3020 K
文摘
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Modified carbon electrodes effectively measuring pH of buffered and unbuffered media.
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The nucleophilic attack by OH− group causes pH sensing failure in high pH solutions.
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The hydrophobicity decreases the accuracy of measuring pH of unbuffered media.