Department of Chemistry, College of Science, Hebei Agricultural University, Baoding, 071001, P. R. China.
J Sep Sci. 2021 Apr;44(7):1521-1528. doi: 10.1002/jssc.202001088. Epub 2021 Feb 10.
A novel hexagonal boron nitride modified reduced graphene oxide material was synthesized and used as the adsorbent for the solid-phase microextraction of seven polycyclic aromatic hydrocarbons from water and soil samples prior to their detection by gas chromatography-flame ionization detector. Under optimal conditions, the linear response range of the analytes for water sample is 0.25-50 ng/mL with the correlation coefficients (r) ranging between 0.9953 and 0.9996. The linear range for soil sample is 1.0-400 ng/g with r ranging from 0.9959 to 0.9999. On the basis of the signal-to-noise ratio of 3, the limits of detections for the analytes ranged from 0.05 to 0.15 ng/mL for water samples, and from 0.3 to 0.5 ng/g for soil samples. The relative recoveries of the seven polycyclic aromatic hydrocarbons for water and soil samples were in the range of 79.55-120.0 and 78.76-120.8%, respectively. The relative standard deviations for the determination of the analytes in water and soil samples were lower than 11 and 10%, respectively. The method is simple and suitable for the determination of polycyclic aromatic hydrocarbon residues in water and soil samples.
一种新型六方氮化硼修饰的还原氧化石墨烯材料被合成，并用作固相微萃取的吸附剂，用于气相色谱-火焰离子化检测器检测水和土壤样品中的七种多环芳烃。在最佳条件下，水样品中分析物的线性响应范围为 0.25-50ng/mL，相关系数（r）在 0.9953 到 0.9996 之间。土壤样品的线性范围为 1.0-400ng/g，r 从 0.9959 到 0.9999。基于信噪比为 3，分析物的检出限范围为水样品中的 0.05-0.15ng/mL，土壤样品中的 0.3-0.5ng/g。水和土壤样品中七种多环芳烃的相对回收率分别在 79.55-120.0%和 78.76-120.8%之间。在水和土壤样品中测定分析物的相对标准偏差均低于 11%和 10%。该方法简单，适用于水和土壤样品中多环芳烃残留的测定。
