The electrochemiluminescence (ECL) system based on the ruthenium complex has become a powerful tool in the field of analytical chemistry. However, the non-aqueous ECL luminescence system, which does not involve complex nano-modification, has not been widely used for the determination of analytes. In this study, -methyl pyrrolidone was selected as the solvent, and it could also act as a co-reactant of [inline-formula removed]. Based on this, a simple ECL system without nanomaterials was established. Strong ECL was generated. Furthermore, a quenching effect between the excited state of [inline-formula removed] and sulphamethoxazole (SMZ) was observed. Based on this, a sensitive ECL sensor for detecting SMZ is constructed. A linear relationship between ECL signal quenching intensity (Δ) and the logarithm of SMZ concentration (log ) in the concentration range of 1 × 10-1 × 10 mol/l is obtained. The limit of detection is as low as 3.33 × 10 mol/l. The method has been applied to the detection of SMZ in tap water samples with different concentration levels with satisfactory results, and the recovery was 95.3-102.6%.
Download full-text PDF |
Source |
|---|---|
| http://www.ncbi.nlm.nih.gov/pmc/articles/PMC8676575 | PMC |
| http://dx.doi.org/10.1049/iet-nbt.2019.0257 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Determination of Key Groups of Coal Spontaneous Combustion and Risk Prediction Based on Ultrasonic Extraction.
ACS Omega
December 2024
Department of Safety Engineering, Shanxi Institute of Energy, Jinzhong 030600, China.
In order to accurately investigate the key microstructures in the spontaneous combustion exothermic process of coal, an ultrasonic extraction method was employed to extract the coal, and the complex microscopic groups within it were stripped and studied. On this basis, Fourier transform infrared spectroscopy and differential scanning calorimetry were employed to assess the content of microscopic groups and the exothermic characteristics of the raw and extracted coal samples. The findings indicated that toluene and methanol demonstrated a notable capacity for extracting aromatic and aliphatic hydrocarbon compounds from coal, whereas -methyl pyrrolidone (NMP) and ethylenediamine (EDA) exhibited a pronounced effect on oxygen-containing functional groups and hydroxyl groups.
View Article and Find Full Text PDFControlled Sensor Derived from COF Materials for the Effective Detection of -Methylpyrrolidone.
ACS Sens
November 2024
School of Materials Science and Engineering, Xinjiang University, Urumqi, Xinjiang 830046, China.
-methylpyrrolidone (NMP) is an excellent advanced solvent that can be easily absorbed by the human body and has the characteristics of flammability and explosion. To reduce the risk, the environmental concentrations of NMP need to be measured. A series of covalent organic frameworks (COF) connected by an imine bond have been successfully prepared at room temperature by changing the synthesis time catalyzed by scandium(III) trifluoromethanesulfonate (Sc(OTf)).
View Article and Find Full Text PDFRechargeable Afterglow Superclusters for NIR-Excitable Repetitive Phototherapy.
Nano Lett
December 2024
School of Environmental and Chemical Engineering, Shanghai University, Shanghai 200444, China.
Afterglow luminescence has attracted increasing attention due to its prolonged emission, reduced autofluorescence, and minimized photodamage. However, persistent luminescence typically requires high-energy excitation (e.g.
View Article and Find Full Text PDFDecapsulating waste photovoltaic laminated modules by the combination treatment of thermal field and the solvent of the N-methyl-2-pyrrolidone.
Waste Manag
January 2025
School of Environmental Science and Engineering, Sun Yat-Sen University, 135 Xingang Xi Road, Guangzhou 510275, China. Electronic address:
In order to achieve the goal of dual-carbon strategy, China has vigorously developed the photovoltaic industry. However, the life cycle of photovoltaic panels is limited, resulting in a large number of waste photovoltaic laminated modules. Waste photovoltaic laminated modules contain rich metallic and organic resources, and have high recycling value.
View Article and Find Full Text PDFA General Strategy to Rapid and Sensitive Determination of Five High Boiling Point Solvents in Pharmaceuticals by RP-HPLC Combined with Precipitation Method.
J Chromatogr Sci
November 2024
HEC Research and Development Center, HEC Pharm Group, Zhen'an Road 368, Chang'an Town, Dongguan 523871, PR China.
The difficulty on determination of high boiling point solvents, always exist due to their low vapor pressure in headspace (HS) vial. What's worse, the commonly used GC diluents, such as N, N-dimethylacetamide, 1,3-dimethyl-2-imidazolidinone, dimethyl sulfoxide, N, N-dimethylformamide and N-methylpyrrolidone are often remained in HS instrument after frequent injection into HS, thus would result in terrible positive interference problem. In this work, a fast and sensitive HPLC method in combination with a sample precipitation method, was proposed for the determination of above five high boiling point solvents in drug substances within 14.
View Article and Find Full Text PDFWant AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!