【摘要】 试样分解后，钛在一定酸度下，与磷酸二氢钠生成白色沉淀，借以重量法测定之，从生成物组成看，提高了测定方法的灵敏度。更多还原

【Abstract】 First, samples of sphene which containing titanium were dessolved by dense sulphuric and hydrofluoric acid.When pH<2,15ml 20% sodium phosphate was added.Then they reacted into white sediment of Ti(HPO 4) 2. In the end, by gravimetric method the content of titanium was determined. The sensitivity and accuracy of the method were relatively high.更多还原