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In Praise of Marine Chemists

机译:赞扬海洋化学家

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摘要

Shortly after the birth of the science of analytical chemistry, over 100 years ago, the art of measuring the chemicals in the sea began with the arduous task of analyzing the six major salts in seawater-sodium, magnesium, potassium, calcium, sulfate, and chloride. It soon became apparent that these four cations and two anions make up the bulk of sea salt, and a few more, like boron, strontium, fluorine, and bromine, were all "conservative." In other words, the salt composition of seawater was quite boring-the salts in seawater from anywhere in the world ocean contain almost exactly the same proportional composition as seawater from anywhere else-and in direct relationship to its "salinity"-a concept that originated with ocean chemists but was forfeited to ocean physicists when the chemical definition of salinity as a measure of salt mass content got corrupted and was no longer useful to calculate in situ seawater density.
机译:在100年前的分析化学科学诞生后不久,测量海洋中化学物质的技术就开始了艰巨的任务,即分析海水中的六种主要盐-钠,镁,钾,钙,硫酸盐和氯化物。很快就可以看出,这四个阳离子和两个阴离子构成了海盐的主体,另外一些(如硼,锶,氟和溴)都是“保守的”。换句话说,海水的盐成分非常无聊-世界上任何地方的海水中的盐所占比例几乎都与其他地方的海水相同-并且与海水的“盐度”直接相关-这一概念起源于与海洋化学家一起使用,但是当盐度的化学定义(用于衡量盐质量含量的标准)被破坏并且不再用于计算原位海水密度时,海洋化学家便被没收了。

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  • 来源
    《Oceanography》 |2014年第1期|88-91|共4页
  • 作者

    FLIP FROELICH;

  • 作者单位

    Froelich Education Services, Tallahassee, FL, USA;

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  • 正文语种 eng
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