In cetrain conditions rare-earth metal in dryers for paint was deterimined by complexomet-ric titration using EDTA as the complexing agent and 2,3-xylenol orange as the indicator.

• 在一定条件下，以EDTA为络合剂，以二甲酚橙为指示剂，用络合滴定法测定了涂料用稀土催干剂中稀土金属的含量。