摘要
建立了用胶束电动毛细管色谱法 (MECC)对纸上微量蓝色圆珠笔油墨进行分析鉴别的方法。研究了检测波长、电压、温度及电泳缓冲液中各组分浓度等因素对圆珠笔油墨分离的影响。当电压为 2 5kV、柱温为 2 5℃、检测波长为 2 0 0nm时 ,以 5 0mmol LSDS 5 0mmol L硼砂溶液 (外加体积分数为 45 %的乙腈 )为缓冲液 ,2
A method of identification for traces of blue ballpoint inks on papers with micellar electrokinetic capillary chromatography(MECC) was established in this study. The effects of several factors, such as measuring wavelengthe, applid voltage, column temperature and the concentration of each component in buffer solution,on the separation of ballpoint inks were studied. Traces of 20 kind different ballpoint inks have been well identified with a buffer solution of 55%(in volume)50mmol/L SDS 50mmol/Lborax and 45%(in volume)acetonitrile, when the voltage is 25kV, the column temperature is at 25℃ and measuring wavelength is 200 nm.
出处
《化学通报》
CAS
CSCD
北大核心
2002年第12期827-830,共4页
Chemistry
基金
20 0 1年国家高技术产业发展科技项目([2 0 0 1]2 4 92 )
