School of Public Health, College of Public Health and Nutrition, Taipei Medical University, Taipei 110, Taiwan.
Department of Public Health, School of Medicine, College of Medicine, Taipei Medical University, Taipei 110, Taiwan.
Int J Mol Sci. 2023 Apr 2;24(7):6635. doi: 10.3390/ijms24076635.
Polycyclic aromatic hydrocarbons are a class of chemicals that occur naturally. They generally demonstrate a high degree of critical toxicity towards humans. Acenaphthene and naphthalene contain compounds that are commonly found in the environment as compared to other PAHs. Consequently, a reliable method of detecting PAHs is crucial for the monitoring of water quality. A colorimetric method based on sodium nitrite-functionalized gold nanoparticles was developed in this study for acenaphthene and naphthalene detection. Different functionalized parameters are determined for the optimization of assay conditions. A linear relationship was found in the analyte concentration range of 0.1-10 ppm with the limit of detection for acenaphthene and naphthalene being 0.046 ppm and 0.0015 ppm, respectively, under the optimized assay conditions. The method's recovery rate for actual samples falls within the range of 98.4-103.0%. In selective and anti-interference tests, the presence of cations and anions has minimal impact on the detection of the analyte. The colorimetric detection method proposed in this study effectively determines the presence of the analyte in real water samples and has a high recovery rate.
多环芳烃是一类天然存在的化学物质。它们通常对人类表现出高度的临界毒性。苊和萘含有在环境中常见的化合物，与其他多环芳烃相比。因此，开发一种可靠的多环芳烃检测方法对于水质监测至关重要。本研究提出了一种基于亚硝酸钠功能化金纳米粒子的比色法用于苊和萘的检测。确定了不同的功能化参数以优化测定条件。在优化的测定条件下，在 0.1-10 ppm 的分析物浓度范围内发现了线性关系，苊和萘的检测限分别为 0.046 ppm 和 0.0015 ppm。实际样品的方法回收率在 98.4-103.0%范围内。在选择性和抗干扰测试中，阳离子和阴离子的存在对分析物的检测影响很小。本研究提出的比色检测方法可有效检测实际水样中的分析物，且回收率高。
