Department of Chemistry, Tokat Gaziosmanpasa University, Tokat, Turkey; King Fahd University of Petroleum and Minerals, Research Institute, Center for Environment and Marine Studies, Dhahran, 31261 Saudi Arabia.
Department of Aircraft Airframe Engine Maintenance, Kapadokya University, Nevşehir, Turkey; Zonguldak Bülent Ecevit University, Department of Chemistry, 67100 Zonguldak, Turkey.
Food Chem. 2022 Nov 30;395:133607. doi: 10.1016/j.foodchem.2022.133607. Epub 2022 Jun 30.
A new and novel poly(vinyl benzyl dithiocarbonate-dimethyl amino ethyl methacrylate) block copolymer (Pvb-DMA-Xa) as adsorbent was synthesized for the vortex-assisted dispersive solid phase microextraction (VA-DSPME) of patulin from apple products and dried fruits using Uv-visible spectrophotometer. The characterization of synthesized Pvb-DMA-Xa block copolymer was performed with Fourier Transform Infrared spectroscopy (FTIR-ATR) technique. Analytical characteristics such as pH, sorbent amount, adsorption time, eluent type and its volume, desorption time and adsorption capacity were optimized. Limit of detection (3Sb/m) and limit of quantitation (10Sb/m) were found 0.3 and 1.0 ng mL. Linear dynamic range (LDR), relative standard deviation (RSD) and recovery values were found in the range of 1-30 ng mL, 2.1-2.7 % and 93.5-97.3 %, respectively. Enhancement factor (EF) was found 193. The accuracy of the method was confirmed with standard addition method and analyzing of samples by reference method.
一种新型的聚（苯乙烯基二硫代碳酸二甲酯-二甲基氨基乙基甲基丙烯酸酯）嵌段共聚物（Pvb-DMA-Xa）作为吸附剂，用于从苹果制品和干果中采用可见分光光度法涡旋辅助分散固相微萃取（VA-DSPME）提取棒曲霉素。采用傅里叶变换红外光谱（FTIR-ATR）技术对合成的 Pvb-DMA-Xa 嵌段共聚物进行了表征。优化了分析特性，如 pH 值、吸附剂用量、吸附时间、洗脱剂类型及其体积、解吸时间和吸附容量。检出限（3Sb/m）和定量限（10Sb/m）分别为 0.3 和 1.0 ng mL。发现线性动态范围（LDR）、相对标准偏差（RSD）和回收率分别在 1-30 ng mL、2.1-2.7%和 93.5-97.3%范围内。增强因子（EF）为 193。通过标准加入法和参考方法分析样品验证了该方法的准确性。
