Hayat Muhammad, Manzoor Suryyia, Raza Nadeem, Raza Hina, Javid Ayesha, Ali Zeeshan, Khan Muhammad Imran, Algethami Faisal K, AlMasoud Najla, Alomar Taghrid S
Institute of Chemical Sciences, Bahauddin Zakariya University, Multan, Pakistan.
Institute of Chemical Sciences, Bahauddin Zakariya University, Multan, Pakistan.
Food Chem. 2025 Feb 15;465(Pt 1):141967. doi: 10.1016/j.foodchem.2024.141967. Epub 2024 Nov 7.
Excessive application of pesticides to combat pests in orange fruit has resulted in pervasive buildup of their residues leading to severe risks to human health. The study reports the synthesis of amine-functionalized-organically-modified silica (ormosil) to efficiently extract two target pesticides; chlorpyrifos (CPF) and triazophos (TAP) from orange juice. Synthesized ormosil was characterized using different analytical techniques such as scanning electron microscopy (SEM), thermogravimetric analysis (TGA), and fourier transform infrared spectroscopy (FTIR). Adsorption kinetics of ormosil for CPF and TAP followed a pseudo-first-order indicating a physisorption process with excellent removal efficiencies. Detection limits for CPF and TAP were 0.075 and 0.048 μg L, respectively. Similarly, limits of quantification were 0.8 and 0.6 μg L. Furthermore, there was no significant decrease in the performance of ormosil against CPF and TAP over six successive adsorptive cycles. These findings underscore the potential of investigated ormosil in food analysis.
为防治橙子果实中的害虫而过度施用农药，导致其残留普遍累积，对人体健康造成严重风险。该研究报告了胺官能化有机改性硅石（有机金属硅酸盐）的合成，以有效从橙汁中提取两种目标农药：毒死蜱（CPF）和三唑磷（TAP）。使用扫描电子显微镜（SEM）、热重分析（TGA）和傅里叶变换红外光谱（FTIR）等不同分析技术对合成的有机金属硅酸盐进行了表征。有机金属硅酸盐对CPF和TAP的吸附动力学遵循准一级动力学，表明是一个具有优异去除效率的物理吸附过程。CPF和TAP的检测限分别为0.075和0.048μg L。同样，定量限分别为0.8和0.6μg L。此外，在连续六个吸附循环中，有机金属硅酸盐对CPF和TAP的性能没有显著下降。这些发现突出了所研究的有机金属硅酸盐在食品分析中的潜力。
