Department of Analytical Chemistry, Faculty of Pharmacy, Near East University, TRNC, Mersin 10, Nicosia 99138, Turkey.
Center for Solar Energy Research and Studies, Department of Renewable Energy, Libyan Authority for Scientific Research, Tripoli P.O. Box 30454, Libya.
Int J Environ Res Public Health. 2022 May 16;19(10):6037. doi: 10.3390/ijerph19106037.
The need for proper handling of environmental samples is significant, owing to their environmental effects on both humans and animals, as well as their immediate surroundings. In the current study, magnetic nanoparticle-based dispersive solid-phase microextraction was combined with high-performance liquid chromatography using a diode array as the detector (HPLC-DAD) for both the separation and determination of three different UV blockers, namely octocrylene, ethylhexyl methoxycinnamate, and avobenzone. The optimum conditions for the extraction were found to be as follows: Stearic acid magnetic nanoparticles (20 mg) as the sorbent, acetonitrile (100 µL) as the eluent, as well as a sample pH of 2.50, adsorption and desorption time of 1.0 min, with a 3.0 mL sample volume. The limits of detection were as low as 0.05 µg mL. The coefficient of determination (R) was above 0.9950, while the percentages of relative recoveries (%RR) were between 81.2 and 112% for the three UV blockers from the environmental water samples and sunscreen products.
妥善处理环境样本非常重要，因为它们对人类和动物以及其周围环境都具有环境影响。在本研究中，磁性纳米粒子分散固相微萃取与高效液相色谱法（HPLC-DAD）结合使用，对三种不同的紫外线吸收剂（即奥克立林、乙基己基甲氧基肉桂酸酯和阿伏苯宗）进行分离和测定。提取的最佳条件为：作为吸附剂的硬脂酸磁性纳米粒子（20 mg）、洗脱剂为乙腈（100 µL）、样品 pH 值为 2.50、吸附和解吸时间为 1.0 min，样品体积为 3.0 mL。检测限低至 0.05 µg mL。三种紫外线吸收剂在环境水样和防晒霜产品中的测定系数（R）均高于 0.9950，相对回收率（%RR）在 81.2%至 112%之间。
