Li Bo, Wang Zhi-Wei, Lin Qin-Bao, Hu Chang-Ying, Su Qi-Zhi, Wu Yu-Mei
Packaging Engineering Institute, Jinan University, Zhuhai 519070, China Key Laboratory of Product Packaging and Logistics of Guangdong Higher Education Institutes, Jinan University, Zhuhai 519070, China.
Packaging Engineering Institute, Jinan University, Zhuhai 519070, China Key Laboratory of Product Packaging and Logistics of Guangdong Higher Education Institutes, Jinan University, Zhuhai 519070, China
J Chromatogr Sci. 2015 Jul;53(6):1026-35. doi: 10.1093/chromsci/bmu159. Epub 2014 Dec 3.
An analytical method for the quantitative determination of 4 antioxidants, 9 ultraviolet (UV) stabilizers, 12 phthalate plasticizers and 2 photoinitiators in plastic food package using accelerated solvent extraction (ASE) coupled with high-performance liquid chromatography-photodiode array detector (HPLC-PDA) has been developed. Parameters affecting the efficiency in the process such as extraction and chromatographic conditions were studied in order to determine operating conditions. The analytical method of ASE-HPLC showed good linearity with good correlation coefficients (R ≥ 0.9833). The limits of detection and quantification were between 0.03 and 0.30 µg mL(-1) and between 0.10 and 1.00 µg mL(-1) for 27 analytes. Average spiked recoveries for most analytes in samples were >70.4% at 10, 20 and 40 µg g(-1) spiked levels, except UV-9 and Irganox 1010 (58.6 and 64.0% spiked at 10 µg g(-1), respectively), the relative standard deviations were in the range from 0.4 to 15.4%. The methodology has been proposed for the analysis of 27 polymer additives in plastic food package.
建立了一种采用加速溶剂萃取（ASE）结合高效液相色谱-光电二极管阵列检测器（HPLC-PDA）定量测定塑料食品包装中4种抗氧化剂、9种紫外线（UV）稳定剂、12种邻苯二甲酸酯类增塑剂和2种光引发剂的分析方法。研究了萃取和色谱条件等影响该过程效率的参数，以确定操作条件。ASE-HPLC分析方法具有良好的线性，相关系数良好（R≥0.9833）。27种分析物的检测限和定量限分别在0.03至0.30μg mL⁻¹和0.10至1.00μg mL⁻¹之间。在10、20和40μg g⁻¹加标水平下，样品中大多数分析物的平均加标回收率>70.4%，除UV-9和抗氧剂1010（在10μg g⁻¹加标时分别为58.6%和64.0%）外，相对标准偏差在0.4%至15.4%范围内。该方法已被用于分析塑料食品包装中的27种聚合物添加剂。
