An alkaline potassium persulfute and uv-photo digestion system f or the determination of total phosphorus in recycle water of ethylene plant was de scribed.

• 将紫外光氧化消解技术应用于乙烯厂循环水总磷的分析中,经紫外光氧化消解后,样品中的有机膦和各种形态的无机磷转变成正磷酸盐加以测定。