An electrochemical sensor for detection of three monohydroxylated polycyclic aromatic hydrocarbons (OH−PAHs) was fabricated by electrochemical reduction of graphene oxide (E‐rGO) on screen‐printed electrode (SPE). The E‐rGO film presents typical wrinkled structure with porous and cavity‐like nanostructure, providing large surface area, effective π‐electron system and high electrical conductivity. The developed E‐rGO/SPE sensor exhibits outstanding sensing performance for the target OH−PAHs, 2‐hydroxynaphthalene, 3‐hydroxyphenanthrene, and 1‐hydroxypyrene, within a linear range varying from 50–800 nM, 50–1150 nM, and 100–1000 nM, and with a limit of detection (LOD) of 10.1 nM, 15.3 nM, and 20.4 nM (S/N=3), respectively. The electrochemical sensor possesses excellent stability, acceptable reproducibility, and good anti‐interference ability. Additionally, the proposed sensor can be applied to the analysis of OH−PAHs in the urine samples with recoveries of 98.1–105.9 %.

中文翻译：

---

电还原氧化石墨烯修饰的丝网印刷电极电化学检测三种单羟基多环芳烃

通过在丝网印刷电极（SPE）上对氧化石墨烯（E-rGO）进行电化学还原，制造了用于检测三种单羟基化多环芳烃（OH-PAHs）的电化学传感器。E‐rGO薄膜呈现出典型的起皱结构，具有多孔和腔状纳米结构，具有较大的表面积，有效的π电子系统和高电导率。研发的E-rGO / SPE传感器在50-800 nM，50-1150 nM和100的线性范围内，对目标OH-PAHs，2-羟基萘，3-羟基菲和1-羟基py表现出出色的感测性能。 –1000 nM，检测限（LOD）分别为10.1 nM，15.3 nM和20.4 nM（S / N = 3）。电化学传感器具有出色的稳定性，可接受的再现性和良好的抗干扰能力。