Sivas Cumhuriyet University, Science Faculty, Chemistry Department, Sivas, Turkey.
Aircraft Airframe Engine Maintenance Department, Kapadokya University, Nevşehir, Turkey; Zonguldak Bülent Ecevit University, Nano Technology Engineering Department, 67100 Zonguldak, Turkey.
Food Chem. 2025 Jan 15;463(Pt 1):141098. doi: 10.1016/j.foodchem.2024.141098. Epub 2024 Sep 2.
A simple and effective ultrasound-assisted dispersive micro solid-phase extraction (UA-dμSPE) method was developed for the spectrophotometric determination of traces maneb in food and water. In this study, a new hybrid block copolymer poly (vinyl benzyl chloride-b-dimethyl aminoethyl methacrylate) (Pvb-DMA) was synthesized and characterized using techniques such as FTIR, SEM-EDX. The synthesized Pvb-DMA was used as an adsorbent for the extraction of maneb for first time in this study. The effects of different experimental variables such as pH, adsorbent amount, sample volume, eluent type were optimized. The statistical toll factorial design was applied to estimate the individual and combined impact of parameters on the extraction of maneb. The applicability of different solvents such as acetone, methanol, ethanol, tetrahydrofuran, acetonitrile for maneb recovery from adsorbent was tested. The detection and quantification limits were found to be 3.3 ng mL and 10.0 ng mL, respectively. In addition, the preconcentration factor and linear range was obtained 300 and 10-500 ng mL. The extraction recovery and relative standard deviation were found to be 95 % and 2.8 %, respectively.
本文建立了一种简单有效的超声辅助分散微固相萃取（UA-dμSPE）方法，用于分光光度法测定食品和水中的痕量代森锰。本研究合成了一种新型嵌段共聚物聚（氯化 vinyl 苯-b-二甲基氨基乙基甲基丙烯酸酯）（Pvb-DMA），并采用 FTIR、SEM-EDX 等技术对其进行了表征。首次将合成的 Pvb-DMA 用作萃取代森锰的吸附剂。优化了不同实验变量（pH、吸附剂用量、样品体积、洗脱剂类型）的影响。采用统计全因子设计来估计参数对萃取代森锰的单独和联合影响。测试了不同溶剂（丙酮、甲醇、乙醇、四氢呋喃、乙腈）从吸附剂中回收代森锰的适用性。检测限和定量限分别为 3.3ng mL 和 10.0ng mL。此外，还获得了 300 的浓缩因子和 10-500ng mL 的线性范围。萃取回收率和相对标准偏差分别为 95%和 2.8%。
