【摘要】 以Ｔａｖｌｏｒ和Ｇｒｉｍｓｒｕｄ（１９６９）提出的３７Ｃｌ测量的制样原理为基础，介绍了不同地质样品的化学处理方法，研究了ＣＨ３Ｉ的纯化技术，将ＡｇＣｌ转化为ＣＨ３Ｃｌ的过程以及用气相色谱（ＧＣ）法分离ＣＨ３Ｃｌ和ＣＨ３Ｉ的技术。文中详述的制样方法可用来查明近地表地下水和岩石系统中δ３７Ｃｌ的天然变化。更多还原

【Abstract】 On the basis of the preparative sample principle for￣（37）Cl measurement suggestedby Taylor and Grimsrud（1969）,the methods of the chemical treatment of different geologicalsamples are presented.We have studied the technique of purification of CH₃I,the process ofconversion of AgCl to CH₃Cl and the technique of separation of CH₃Cl from CH₃I with gaschromatograph（GC）.The preparative methods detailed in this paper allow detection of natural variability of￣（37）Cl in near-surface groundwater and rock systems.更多还原