收稿日期: 2013-10-19
修回日期: 2013-12-10
网络出版日期: 2014-09-15
基金资助
Supported by National Basic Research Program of China (2011CB302400) and National Natural Science Foundation of China(11301509)
Discrimination of blue ballpoint pen inks using multiwavelength data of HPLC-DAD
Received date: 2013-10-19
Revised date: 2013-12-10
Online published: 2014-09-15
Supported by
Supported by National Basic Research Program of China (2011CB302400) and National Natural Science Foundation of China(11301509)
苏佳利 , 钟上伟 , 许静 , 李向军 , 邹洪 . 基于HPLC-DAD多波长数据的蓝色圆珠笔墨水鉴别[J]. 中国科学院大学学报, 2014 , 31(5) : 595 -603 . DOI: 10.7523/j.issn.2095-6134.2014.05.004
In this paper, multiwavelength data of HPLC-DAD were used to discriminate different brands of blue ballpoint pen ink. Dyes from inks of sixty-eight blue ballpoint pens were analyzed by using HPLC-DAD. Dye components detected in the inks were further identified by using HPLC-mass spectrometry (HPLC-MS). All the inks were firstly classified into nine groups according to the presence or absence of the significant chromatographic peaks. Then the inks in the same group were further discriminated by using PCA with multiwavelength chromatographic data. The results indicated that chromatographic data extracted from three wavelengths were more potent in the discrimination as compared with a single wavelength chromatographic data. By combining the two discrimination steps, we can discriminate about 94% of blue ballpoint pens according to the brands.
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