Quantitative detection of dithiocarbamate pesticides by surface-enhanced Raman spectroscopy combined with an exhaustive peak-seeking method

2021 ◽  
Vol 13 (12) ◽  
pp. 1479-1488
Author(s):  
Qiaoling Wei ◽  
Liangdong Zhang ◽  
Chunfeng Song ◽  
Hongfu Yuan ◽  
Xiaoyu Li
Keyword(s):  
Raman Spectroscopy ◽  
Detection Method ◽  
Surface Enhanced Raman Spectroscopy ◽  
Quantitative Detection ◽  
Surface Enhanced ◽  
Surface Enhanced Raman ◽  
Sers Detection ◽  
Good Signal

A surface-enhanced Raman spectroscopy (SERS) detection method for dithiocarbamate (DTC) with good signal repeatability and a wide linear quantitative range is developed combined with an exhaustive peak-seeking method.

Multivariate Analysis Aided Surface-Enhanced Raman Spectroscopy (MVA-SERS) Multiplex Quantitative Detection of Trace Fentanyl in Illicit Drug Mixtures Using a Handheld Raman Spectrometer

2021 ◽  
pp. 000370282110329
Author(s):  
Ling Wang ◽  
Mario O. Vendrell-Dones ◽  
Chiara Deriu ◽  
Sevde Doğruer ◽  
Peter de B. Harrington ◽  
...  
Keyword(s):  
Raman Spectroscopy ◽  
Principal Component ◽  
Surface Enhanced Raman Spectroscopy ◽  
Quantitative Detection ◽  
Least Squares Regression ◽  
Surface Enhanced ◽  
Surface Enhanced Raman ◽  
Sers Detection ◽  
Current Screening

Recently there has been upsurge in reports that illicit seizures of cocaine and heroin have been adulterated with fentanyl. Surface-enhanced Raman spectroscopy (SERS) provides a useful alternative to current screening procedures that permits detection of trace levels of fentanyl in mixtures. Samples are solubilized and allowed to interact with aggregated colloidal nanostars to produce a rapid and sensitive assay. In this study, we present the quantitative determination of fentanyl in heroin and cocaine using SERS, using a point-and-shoot handheld Raman system. Our protocol is optimized to detect pure fentanyl down to 0.20 ± 0.06 ng/mL and can also distinguish pure cocaine and heroin at ng/mL levels. Multiplex analysis of mixtures is enabled by combining SERS detection with principal component analysis and super partial least squares regression discriminate analysis (SPLS-DA), which allow for the determination of fentanyl as low as 0.05% in simulated seized heroin and 0.10% in simulated seized cocaine samples.

Rapid and Quantitative Detection Method of Sodium Benzoate in Carbonated Beverage Based on Surface-Enhanced Raman Spectroscopy

2017 ◽  
Vol 37 (9) ◽  
pp. 0930001 ◽  
Author(s):  
房晓倩 Fang Xiaoqian ◽  
彭彦昆 Peng Yankun ◽  
李永玉 Li Yongyu ◽  
王 凡 Wang Fan ◽  
卜晓朴 Bu Xiaopu ◽  
...  
Keyword(s):  
Raman Spectroscopy ◽  
Sodium Benzoate ◽  
Detection Method ◽  
Surface Enhanced Raman Spectroscopy ◽  
Quantitative Detection ◽  
Surface Enhanced ◽  
Surface Enhanced Raman ◽  
Carbonated Beverage

scholarly journals Dual-triggered nanoaggregates of cucurbit[7]uril and gold nanoparticles for multi-spectroscopic quantification of creatinine in urinalysis

2020 ◽  
Vol 8 (21) ◽  
pp. 7051-7058
Author(s):  
Weng-I Katherine Chio ◽  
Suresh Moorthy ◽  
Jayakumar Perumal ◽  
Dinish U. S. ◽  
Ivan P. Parkin ◽  
...  
Keyword(s):  
Gold Nanoparticles ◽  
Raman Spectroscopy ◽  
Surface Enhanced Raman Spectroscopy ◽  
Quantitative Detection ◽  
Vis Spectroscopy ◽  
Surface Enhanced ◽  
Surface Enhanced Raman

A novel nanosensing platform was developed for the quantitative detection of creatinine of clinically relevant concentrations via UV-Vis spectroscopy and surface-enhanced Raman spectroscopy.

Establishment of rapid detection method of methamidophos in vegetables by surface enhanced Raman spectroscopy

2012 ◽  
Vol 234 (6) ◽  
pp. 1091-1098 ◽  
Author(s):  
Yunfei Xie ◽  
Godelieve Mukamurezi ◽  
Yingying Sun ◽  
Heya Wang ◽  
He Qian ◽  
...  
Keyword(s):  
Raman Spectroscopy ◽  
Rapid Detection ◽  
Detection Method ◽  
Surface Enhanced Raman Spectroscopy ◽  
Surface Enhanced ◽  
Surface Enhanced Raman
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