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Magnetic deep eutectic solvent-based microextraction for determination of organophosphorus flame retardants in aqueous samples: One step closer to green chemistry
Microchemical Journal ( IF 4.9 ) Pub Date : 2022-11-01 , DOI: 10.1016/j.microc.2022.108120
Maryam Shahbodaghi , Hakim Faraji , Hamidreza Shahbaazi , Mohsen Shabani
Microchemical Journal ( IF 4.9 ) Pub Date : 2022-11-01 , DOI: 10.1016/j.microc.2022.108120
Maryam Shahbodaghi , Hakim Faraji , Hamidreza Shahbaazi , Mohsen Shabani
A ferrofluidic hydrophobic deep eutectic solvent-based on dispersive liquid–liquid microextraction combined with gas chromatography-flame ionization detection was developed for preconcentration, separation, and quantification of organophosphorus flame retardants in aqueous samples. The magnetic deep eutectic solvent was prepared by sonicating silica-coated magnetic particles and benzyltriphenylphosphonium bromide-1-undecanol as the carrier liquid. A multivariate strategy containing central composition design and a univariate methodology were employed for optimization of the independent variables effective in the efficiency of sorption and desorption steps, respectively. Method validation study performed under optimal conditions, demonstrates the proper linear range for the analytes calibration curves with the limit of detection the range of 3.0 to 23.0 ng/L and the limit of detection lower than 50.0 ng/L. Intra- and inter-day precision measured at three concentrations for the goal analytes were lower than 5.9 and 8.5 %, respectively. The method intra-day accuracy (96.8–102.0 %) and inter-day accuracy (96.5–103.1 %) illustrate the satisfactory applicability of the proposed method for the analysis of the goal analytes in aqueous samples.
中文翻译:
基于磁性低共晶溶剂的微萃取法测定水性样品中的有机磷阻燃剂:离绿色化学更近了一步
开发了一种基于分散液-液微萃取结合气相色谱-火焰电离检测的铁流体疏水深共晶溶剂,用于水性样品中有机磷阻燃剂的预浓缩、分离和定量。以二氧化硅包被的磁性颗粒和苄基三苯基溴化膦-1-十一醇为载体液超声处理,制备磁性深共熔溶剂。采用包含中心成分设计和单变量方法的多变量策略,分别用于优化对吸附和解吸步骤效率有效的自变量。在最佳条件下进行的方法验证研究表明,分析物校准曲线的线性范围合适,检测限范围为 3.0 至 23.0 ng/L,检测限低于 50.0 ng/L。在三种浓度下测得的目标分析物的日内和日间精密度分别低于 5.9 和 8.5 %, 分别。该方法的日内准确度 (96.8–102.0%) 和日间准确度 (96.5–103.1%) 说明了所提出的方法在分析水性样品中目标分析物方面的令人满意的适用性。
更新日期:2022-11-01
中文翻译:
基于磁性低共晶溶剂的微萃取法测定水性样品中的有机磷阻燃剂:离绿色化学更近了一步
开发了一种基于分散液-液微萃取结合气相色谱-火焰电离检测的铁流体疏水深共晶溶剂,用于水性样品中有机磷阻燃剂的预浓缩、分离和定量。以二氧化硅包被的磁性颗粒和苄基三苯基溴化膦-1-十一醇为载体液超声处理,制备磁性深共熔溶剂。采用包含中心成分设计和单变量方法的多变量策略,分别用于优化对吸附和解吸步骤效率有效的自变量。在最佳条件下进行的方法验证研究表明,分析物校准曲线的线性范围合适,检测限范围为 3.0 至 23.0 ng/L,检测限低于 50.0 ng/L。在三种浓度下测得的目标分析物的日内和日间精密度分别低于 5.9 和 8.5 %, 分别。该方法的日内准确度 (96.8–102.0%) 和日间准确度 (96.5–103.1%) 说明了所提出的方法在分析水性样品中目标分析物方面的令人满意的适用性。