表面增强拉曼光谱
拉曼光谱
污染
污染物
环境化学
分析物
芘
化学
样品制备
光谱学
环境科学
纳米技术
分析化学(期刊)
材料科学
色谱法
有机化学
拉曼散射
物理
光学
生物
量子力学
生态学
作者
S. Almaviva,Florinda Artuso,Isabella Giardina,Antonia Lai,Alessandra Pasquo
出处
期刊:Sensors
[MDPI AG]
日期:2022-10-30
卷期号:22 (21): 8338-8338
被引量:9
摘要
Fast monitoring of water quality is a fundamental part of environmental management and protection, in particular, the possibility of qualitatively and quantitatively determining its contamination at levels that are dangerous for human health, fauna and flora. Among the techniques currently available, Raman spectroscopy and its variant, Surface-Enhanced Raman Spectroscopy (SERS), have several advantages, including no need for sample preparation, quick and easy operation and the ability to operate on the field. This article describes the application of the Raman and SERS technique to liquid samples contaminated with different classes of substances, including nitrates, phosphates, pesticides and their metabolites. The technique was also used for the detection of the air pollutant polycyclic aromatic hydrocarbons and, in particular, benzo(a)pyrene, considered as a reference for the carcinogenicity of the whole class of these compounds. To pre-concentrate the analytes, we applied a methodology based on the well-known coffee-ring effect, which ensures preconcentration of the analytes without any pretreatment of the sample, providing a versatile approach for fast and in-situ detection of water pollutants. The obtained results allowed us to reveal these analytes at low concentrations, close to or lower than their regulatory limits.
科研通智能强力驱动
Strongly Powered by AbleSci AI