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Citation: WANG Zhonglai, SHI Enlin, FU Xiaohai, ZENG Junling, YU Farong. Preparation and performance evaluation of chromatographic column precoated with graphitized carbon black[J]. Chinese Journal of Chromatography, ;2017, 35(4): 375-381. doi: 10.3724/SP.J.1123.2016.10051 shu

Preparation and performance evaluation of chromatographic column precoated with graphitized carbon black

1.
Institute of Public Security Technology, Gansu Institute of Political Science and Law, Lanzhou 730070, China;
2.
Key Laboratory of Evidence of Science and Technology Research and Application of Gansu Province, Gansu Institute of Political Science and Law, Lanzhou 730070, China

Received Date: 30 October 2016

Fund Project: Natural Science Foundation of Gansu Province (No. 1606RJZA165)

A preparation method of special chromatographic column (LZP-930) for liquor analysis was optimized by precoating the graphitized carbon black (GCB) on the inner wall of fused capillary column. Characteristics of the prepared chromatographic column (LZP-930G) were investigated in detail. The retention behavior was evaluated, and the effect of the precoated GCB on the performance of the LZP-930G column was discussed. Results revealed that the plate number, stability and polarity were increased obviously by using the LZP-930G column, so the separation selectivity and chromatographic peak shape of acids and alcohols were improved. All the 53 compounds in the mixed liquor standard sample could be separated simultaneously. The relative standard deviations of retention times and peak areas were less than 0.63% and 4.51% (n=5), respectively. The result showed that the GCB precoated technology can be used for the preparation of high performance chromatographic column for liquor analysis.
- gas chromatography (GC),
- precoated technology,
- graphitized carbon black (GCB),
- liquor analysis
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