CAJ | 학술논문

通过对22批次水嘴进行为时3周的浸泡试验，并收集其中9天上午的浸泡水，用原子吸收光谱检测浸泡水中的铅浓度，分析浸泡水中铅的溶出规律。结果显示，浸泡水中的铅浓度整体呈现下降趋势，第1周下降幅度最大，之后下降平缓；第3周，铅浓度呈现短暂回升，随后继续平缓下降。
통과대22비차수취진행위시3주적침포시험，병수집기중9천상오적침포수，용원자흡수광보검측침포수중적연농도，분석침포수중연적용출규률。결과현시，침포수중적연농도정체정현하강추세，제1주하강폭도최대，지후하강평완；제3주，연농도정현단잠회승，수후계속평완하강。
T hree w eeks of im m ersion test are taken to 22 batches of faucets. D uring the experim ent for three w eeks, sim ulate w ater is collected according to JC/T 1043-2007 <L im it of lead extraction in faucets> and the lead concentrations are determ ined by A tom ic absorption spectroscopy. T he results show ed that the concentrations of lead in sim ulate w ater are decreasing greatly in the first w eek and there is a short rebound of the lead concentrations in the third w eek. A fter that lead concentrations decreased slow ly.