摘要
将金属镀镍材料在210℃、10％（体积分数）的HCl中退镀15min，然后用电感耦合等离子体质谱仪（ICP—MS）测定退镀液中铅和镉含量。根据退镀量及所测含量，计算出镀层中铅和镉的含量。该方法的铅、镉检出限分别为0．10mg／kg和0．18mg／kg，实际样品分析的相对标准偏差分别为3．33％和4．07％，加标平均回收率为94．5％～107％，能满足镀层有害物质检测相关规定的要求。
The sample of nickel-coated metal was stripped in 10% （volume fraction） HCl solution at 210 ℃ for 15 min. The contents of lead and cadmium in the solution were determined by inductively coupled plasma mass spectrometry （ICP-MS） and their contents in the coating were calculated. The detection limit, relative standard deviation and average recovery of lead and cadmium were found to be 0.10 and 0.18 mg/kg, 3.33% and 4.07%, 94.5%-107%, respectively. The method can meet the requirement of the corresponding regulations.
出处
《电镀与涂饰》
CAS
CSCD
北大核心
2010年第7期35-37,共3页
Electroplating & Finishing
基金
国家质检总局课题(2007IK085)
关键词
镍镀层
铅
镉
电感耦合等离子体质谱仪
检测限
nickel coating
lead
cadmium
inductively- coupled plasma mass spectrometer
detection limit
