Abstract: Calcium and magnesium in nature water are simultaneously determined by dual wave length spectrophotometry.The results are satisfactory.

• 文摘:本文采用双波长分光光度法使钙、镁不经掩蔽而同时测定，方法简单、准确。利用该方法对环境水样中的钙、镁进行了测定，结果令人满意。