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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。
Based on the sample preparation principle of 37Cl proposed by Tavlor and Grimsrud (1969), the chemical treatment methods of different geological samples are introduced, the purification technology of CH3I, the process of converting AgCl to CH3Cl and the method of gas chromatography (GC) Technology for the separation of CH3Cl and CH3I. The sample preparation method described in detail can be used to identify the natural variation of δ37Cl in near-surface groundwater and rock systems.