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| Identification and determination of carboxylic acids in food samples using 2-(2-(anthracen-10-yl)-1H-phenanthro[9,10-d]imidazol-1-yl)ethyl | |
| Zhiwei Sun; Jinmao You; Cuihua Song; Lian Xia | |
| 2011-05-18 | |
| 发表期刊 | Talanta
 |
| ISSN | 0039-9140 |
| 卷号 | 85页码:1088-1099 |
| 摘要 | A new labeling reagent for carboxylic acids, 2-(2-(anthracen-10-yl)-1H-phenanthro[9,10-d]imidazol-1-yl)ethyl 4-methylbenzenesulfonate (APIETS) has been designed and synthesized. It was used to label eight fatty acids (lauric acid, myristic acid, palmitic acid, stearic acid, arachidic acid, oleic acid, linoleic acid and linolenic acid) and four hydroxy pentacyclic triterpene acids (oleanolic acid, ursolic acid, betulinic acid and maslinic acid), successfully. APIETS could easily and quickly label carboxylic acids in the presence of K2CO3 catalyst at 85 ？C for 35 min in N,N-dimethylformamide solvent. The carboxylic acids derivatives were separated on a C8 reversed-phase column with gradient elution and fluorescence detection at _ex/_em = 315/435 nm. Identification of these derivatives was carried out by online mass spectrometry with atmospheric pressure chemical ionization in positive ion mode. The detection limits obtained were 13.37–30.26 fmol (signal-to-noise ratio of 3). The proposed method has been applied to the quantification of carboxylic acids in sultana raisin (Thompson seedless), hawthorn flake (Crataegus pinnatifida Bge.), Lycium barbarum seed oil and Microula sikkimensis seed oil with recoveries over 95.3%. It has been demonstrated that APIETS is a prominent labeling reagent for determining carboxylic acids with highperformance liquid chromatography. |
| 收录类别 | SCI |
| 文献类型 | 期刊论文 |
| 条目标识符 | http://210.75.249.4/handle/363003/2112 |
| 专题 | 中国科学院西北高原生物研究所 |
| 推荐引用方式 GB/T 7714 | Zhiwei Sun,Jinmao You,Cuihua Song,et al. Identification and determination of carboxylic acids in food samples using 2-(2-(anthracen-10-yl)-1H-phenanthro[9,10-d]imidazol-1-yl)ethyl[J]. Talanta,2011,85:1088-1099. |
| APA | Zhiwei Sun,Jinmao You,Cuihua Song,&Lian Xia.(2011).Identification and determination of carboxylic acids in food samples using 2-(2-(anthracen-10-yl)-1H-phenanthro[9,10-d]imidazol-1-yl)ethyl.Talanta,85,1088-1099. |
| MLA | Zhiwei Sun,et al."Identification and determination of carboxylic acids in food samples using 2-(2-(anthracen-10-yl)-1H-phenanthro[9,10-d]imidazol-1-yl)ethyl".Talanta 85(2011):1088-1099. |
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