THE MEASUREMENT OF SEA-WATER PH
THE MEASUREMENT OF SEA-WATER PH
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DOI：
10.1016/0304-4203(93)90198-w
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发表时间：
1993-12-01
期刊：
影响因子：
3
通讯作者：
DICKSON, AG
中科院分区：
文献类型：
--
作者：
DICKSON, AG
本文综述了测量海水总氢离子浓度的两种方法的热力学基础：玻璃电极电位法和指示染料光谱法。这两种方法最终都依赖于使用经典的氢/银-氯化银电池进行校准的测量，因此提供了等效的pH标度。由于最近在测量技术和校准方面的进展，我们应该会看到pH值测量的普及程度的复苏，并重新认识到这一参数在解释海水酸碱过程中的重要性；特别是涉及具有重要地球化学意义的二氧化碳系统的酸碱过程。
This paper reviews the thermodynamic basis of two approaches that are used to measure the total hydrogen ion concentration of sea water, potentiometry using a glass electrode and spectroscopy using an indicator dye. Both of these methods depend ultimately on measurements made using the classical hydrogen/silver-silver chloride cell for their calibration and thus provide equivalent pH scales. As a result of recent advances in measurement techniques and calibration, we should expect to see a revival in the popularity of pH measurements and a renewed understanding of the importance of this parameter in interpreting acid-base processes in sea water; particularly those involving the geochemically important carbon dioxide system.