| Autor: |
SUN Shanshan, WANG Mingdong, ZHAO Huinan, ZHENG Wenjing, XUE Xia, HU Mei, WANG Jun, LIU Yanming, ZHANG Yanxia |
| Jazyk: |
čínština |
| Rok vydání: |
2023 |
| Předmět: |
|
| Zdroj: |
Zhongguo shipin weisheng zazhi, Vol 35, Iss 2, Pp 198-203 (2023) |
| Druh dokumentu: |
article |
| ISSN: |
1004-8456 |
| DOI: |
10.13590/j.cjfh.2023.02.008 |
| Popis: |
ObjectiveTo develop an analytical method for fast determination of banned pigment quinoline yellow in pastries by salting out assisted-high performance liquid chromatography.MethodsThe sample was extracted with 40% methanol-sodium chloride-water， precipitated with potassium ferrocyanide-zinc acetate solution， eluted with mobile phase of methanol-0.02 mol/L ammonium acetate solution， separated by X-Bridge C18 column v（150 mm×4.6 mm， 3.5 μm）， and detected with diode -array detector by external standard method.ResultsThe method showed good linearity （r>0.999） in the range of 0.4-40.0 μg/mL. The limit of detection （S/N=3） was 1.25 mg/kg and the limit of quantification （S/N=10） was 5.0 mg/kg. The average recoveries of three different concentrations level at 5.0， 10.0 and 50.0 mg/kg ranged from 89.18% to 110.10%， with relative standard deviation in the range of 2.83%-8.65%.ConclusionThe method was convenient， accurate and reproducible， and it was suitable for qualitative and quantitative analysis of banned pigment quinoline yellow in pastries. |
| Databáze: |
Directory of Open Access Journals |
| Externí odkaz: |
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