In order to determinating the content of soluble Ca and Mg ion in rock,the conventional measure of determinating the content of Ca and Mg ion was adapted.

• 为了测定泥页岩中可溶性钙、镁离子的含量,采用了传统的钙、镁离子含量测定方法,但由于其他离子的干扰使测定终点难以观察。