| 食品红色着色剂中工业染料直接桃红的检测方法研究 |
| |
| 引用本文： | 戴明,林钦,余清,郑露菲,郑小严.食品红色着色剂中工业染料直接桃红的检测方法研究[J].福建分析测试,2010,19(1):41-45. |
| |
| 作者姓名： | 戴明 林钦 余清 郑露菲 郑小严 |
| |
| 作者单位： | 福建省中心检验所,国家加工食品质量监督检验中心,福建福州350002 |
| |
| 摘 要： | 本文建立了食用色素中直接桃红的高效液相色谱-二极管阵列检测方法。样品经纯水提取、离心和过滤后,依次通过C18固相萃取小柱和自制聚酰胺固相萃取小柱净化富集,浓缩后经高效液相色谱分离检测。该方法对不同色素产品中直接桃红的检测限为1-200mg/kg;定量限为3-700mg/kg;色素空白样品加标回收率为64.8%～106.3%,相对标准偏差(RSD)为2.4%～11.1%(n=3),直接桃红染料在0.050～2mg/mL浓度范围内呈良好的线性关系,线性回归系数r均大于0.999。
|
| 关 键 词： | 高效液相色谱法 直接桃红 食用着色剂 |
Study on Determination of Direct Red 31 in Red Food Pigments by HPLC-PDA |
| |
| Dai Ming,Lin Qin,Yu Qing,Zheng Lu-fei,Zheng Xiao-yan.Study on Determination of Direct Red 31 in Red Food Pigments by HPLC-PDA[J].Fujian Anal Ysis & Testing,2010,19(1):41-45. |
| |
| Authors: | Dai Ming Lin Qin Yu Qing Zheng Lu-fei Zheng Xiao-yan |
| |
| Affiliation: | Fujian Provincial Central Inspection Institute;National Center for Quality Supervision and Inspection for Processed Food;Fuzhou;Fujian350002;China |
| |
| Abstract: | A method for determination of direct Red 31 in food pigments by HPLC-PDA has been developed in this article.The analyte was extracted from food pigments by pure water, followed by solid-phase extraction and concentration. HPLC-PDA was used to identify and determine the level ot the direct reel 31. The linear nunge were 0.050-2mg/ml, （ r〉0.999 ）. The recoveries ranged from 64.8% to106.3%, and the relative standard deviations were 2.4% ～11.1% （n=3）. The detection limits were ranged from 1-200mg/kg. |
| |
| Keywords: | HPLC direct red 31 food pigments |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
|
