沉淀分离法是根据溶度积原理、利用沉淀反应进行分离的方法。在待分离试液中，加入适当的沉淀剂，在一定条件下，使预测组分沉淀出来，或者将干扰组分析出沉淀，以达到除去干扰的目的。沉淀分离法包括沉淀、共沉淀两种方法。
基体沉淀分离方法是沉淀分离法的一项较新进展。
The matrix precipitation separation technique in trace analysis is a recent development.
即用沉淀分离法提取PV C塑料中的DOP，然后，借助于HPLC法分离测定提取物中的DOP。
The DOP is recovered from the PVC plastics by precipitation separation. It is then separated and determined by HPLC.
降氟除砷是改善水质、预防地氟病、地砷病的根本措施，主要有混凝沉淀法、吸附法、离子交换法、膜分离法等。
Lowering fluoride concentration and removing arsenic from drinking water is an effective measure to improve water quality and prevent sickness related to fluoride and arsenic.
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