摘要
建立了高效液相色谱法同时测定镍镀液中常用光亮剂苯亚磺酸钠和糖精钠的定量检测方法.为避免高盐背景对色谱分析的干扰,研究了样品的除盐处理方法.对方法的线性关系、回收率、精密度进行验证,并利用方法测定电镀液中苯亚磺酸钠和糖精钠,得到其实际消耗曲线:在400 A/m^(2)的电流密度条件下苯亚磺酸钠4 h内平均消耗速率为18.25 mg/h,糖精钠在4 h内平均消耗速率为4.05 mg/h.试验结果表明,苯亚磺酸钠和糖精钠的浓度与峰面积具有良好的线性关系,相关系数均大于0.993,样品加标回收率为91.20%~97.60%,相对标准偏差为2.86%~4.75%.方法重复性良好,操作简便快速,适用于镍镀液中两种光亮剂的检测.
A quantitative method of simultaneous determination of sodium benzenesulfinate and sodium saccharin in nickel plating solution by high performance liquid chromatography has been established.In order to avoid the interference of high salt background in chromatographic analysis,the desalting treatment method of samples was studied.The linearity,recovery and precision of the method were verified,and the actual consumption curves of sodium benzenesulfinate and sodium saccharin in electroplating solution were determined:under a current density of 400 A/m^(2) for 4 h,the average consumption rate of sodium benzenesulfinate was 18.25 mg/h and the average consumption rate of sodium saccharin was 4.05 mg/h.The results showed that the concentration of sodium benzenesulfinate and sodium saccharin had a good linear relationship with the peak area,all the correlation coefficients were greater than 0.993,the spiked recoveries were 91.20%~97.60%,and the relative standard deviations were 2.86%~4.75%.The method is of good repeatability,simple and rapid operation,and is suitable for the detection of two brighters in nickel plating solution.
作者
王焱
董玉坤
李瑞基
冯建华
郭勇
卢晓锋
李亦婧
WANG Yan;DONG Yu-kun;LI Rui-ji;FENG Jian-hua;GUO Yong;LU Xiao-feng;LI Yi-jing(Jinchuan Group Co.Ltd.,Jinchang 737100,Gansu China;Lanzhou Institute of Chemical Physics,Chinese Academy of Sciences,Lanzhou 730000,China)
出处
《分析测试技术与仪器》
CAS
2022年第1期103-107,共5页
Analysis and Testing Technology and Instruments
关键词
高效液相色谱法
镍电镀
电镀光亮剂
苯亚磺酸钠
糖精钠
high performance liquid chromatography
nickel plating
electroplating brightening agent
sodium benzenesulfinate
sodium saccharin
