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(Un)suitability of the use of pH buffers in biological, biochemical and environmental studies and their interaction with metal ions - a review

机译:(联合国)适用于在生物,生化和环境研究中使用pH缓冲液及其与金属离子的互动 - 评论

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摘要

The use of buffers to maintain the pH within a desired range is a very common practice in chemical, biochemical and biological studies. Among them, zwitterionic N-substituted aminosulfonic acids, usually known as Good's buffers, although widely used, can complex metals and interact with biological systems. The present work reviews, discusses and updates the metal complexation characteristics of thirty one commercially available buffers. In addition, their impact on biological systems is also presented. The influences of these buffers on the results obtained in biological, biochemical and environmental studies, with special focus on their interaction with metal ions, are highlighted and critically reviewed. Using chemical speciation simulations, based on the current knowledge of the metal-buffer stability constants, a proposal of the most adequate buffer to employ for a given metal ion is presented.
机译:使用缓冲剂以维持所需范围内的pH是化学,生物化学和生物学研究的一种非常常见的做法。 其中,两性离子N-取代的氨基磺酸,通常称为良好的缓冲液,但虽然广泛使用,可以复杂的金属并与生物系统相互作用。 目前的工作评论,讨论和更新三十一种商用缓冲液的金属络合特性。 此外,还提出了对生物系统的影响。 这些缓冲液对生物,生物化学和环境研究中获得的结果的影响,特别关注其与金属离子的相互作用,并批评综述。 基于金属缓冲稳定性常数的当前知识,使用化学品质模拟,提出了最适合用于给定金属离子的足够缓冲液的提议。

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  • 来源
    《RSC Advances》 |2015年第39期|共15页
  • 作者单位

    Univ Porto Fac Engn Dept Chem Engn REQUIMTE LAQV P-4200465 Oporto Portugal;

    Univ Porto Fac Engn Dept Chem Engn REQUIMTE LAQV P-4200465 Oporto Portugal;

    Polytech Inst Porto ISEP Sch Engn Dept Chem Engn Bioengn Lab Oporto Portugal;

    Univ Porto Fac Engn Dept Chem Engn REQUIMTE LAQV P-4200465 Oporto Portugal;

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  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 化学;
  • 关键词

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