| Investigation on False Peak Phenomena in On-line Sweeping Technique in MEKC |
| |
| 引用本文： | 杨更亮,李保会,王德先,陈义. Investigation on False Peak Phenomena in On-line Sweeping Technique in MEKC[J]. 中国化学, 2002, 20(12): 1579-1583. DOI: 10.1002/cjoc.20020201221 |
| |
| 作者姓名： | 杨更亮 李保会 王德先 陈义 |
| |
| 作者单位： | YANG，Geng-Liang a，b LI，Bao-Hui a WANG，De-Xian aCHEN，Yi b a Department of Chemistry，Hebei University，Baoding，Hebei 071002，China b Center for Molecular Science，Institute of Chemistry，Chinese Academy of Sciences，Beijing 100080，China |
| |
| 基金项目： | theNaturalScienceFoundationofHebeiProvince (No .2 0 0 077)andtheNationalNaturalScienceFoundationofChina (No .2 0 0 75 0 0 5 ) |
| |
| 摘 要： | ＩｎｔｒｏｄｕｃｔｉｏｎＭｉｃｅｌｌａｒｅｌｅｃｔｒｏｋｉｎｅｔｉｃｃｈｒｏｍａｔｏｇｒａｐｈｙ (ＭＥＫＣ)ｗａｓｉｎｖｅｎｔｅｄｔｏｅｘｔｅｎｄｔｈｅｕｔｉｌｉｔｙｏｆｃａｐｉｌｌａｒｙｅｌｅｃｔｒｏｐｈｏｒｅｓｉｓ(ＣＥ)ａｎｄｐｅｒｍｉｔｔｅｄｔｈｅｓｅｐａｒａｔｉｏｎａｎｄａｎａｌｙｓｉｓｏｆｎｅｕｔｒａｌｃｏｍｐｏｕｎｄｓ .ＢｕｔｊｕｓｔｌｉｋｅｏｔｈｅｒｍｏｄｅｓｏｆＣＥ ,ＭＥＫＣａｒｅｈａｍｐｅｒｅｄｂｙｔｈｅｌｏｗｃｏｎｃｅｎｔｒａｔｉｏｎｓｅｎｓｉｔｉｖｉｔｙｏｆｔｈｅｕｌｔｒａ …
|
Investigation on False Peak Phenomena in On-line Sweeping Technique in MEKC |
| |
| YANG,Geng-Liang a,b LI,Bao-Hui a WANG,De-Xian aCHEN,Yi b a. Investigation on False Peak Phenomena in On-line Sweeping Technique in MEKC[J]. Chinese Journal of Chemistry, 2002, 20(12): 1579-1583. DOI: 10.1002/cjoc.20020201221 |
| |
| Authors: | YANG Geng-Liang a b LI Bao-Hui a WANG De-Xian aCHEN Yi b a |
| |
| Affiliation: | YANG,Geng-Liang a,b LI,Bao-Hui a WANG,De-Xian aCHEN,Yi b a Department of Chemistry,Hebei University,Baoding,Hebei 071002,China b Center for Molecular Science,Institute of Chemistry,Chinese Academy of Sciences,Beijing 100080,China |
| |
| Abstract: | In this paper, several factors that could lead to the appearance of false peak were investigated by using on-line sample sweeping technique under different experimental conditions. The tested analytes were buflomedil hydrochloride, ephedrine hydrochloride, benzyl alcohol, vanillin, p-hydroxy~benzald~ehyde and m-methylphenol. Results showed that among the six compounds, three of them, i.e., buflomedil hydrochloride, ephedrine hydrochloride and benzyl alcohol will cause false peaks to appear when sample injection time is long, sodium dodecyl sulfate (SDS) concentration is high and there is pH gradient between cathode and anode. In order to avoid the appearance of false peak, the pH gradient should be avoided. |
| |
| Keywords: | false peak MEKC on-line sweeping technique |
| 本文献已被 CNKI 等数据库收录！ |
|
