The reactions of acetaldehyde with O atoms in the cages of large-pore zeolites have been discovered to result in light emission. The luminescence characteristics of acetaldehyde vapours passing through the surface of chosen zeolites were studied using a cataluminescence-based detection system. To demonstrate the feasibility of the method, the detection of acetaldehyde using catalysts was studied systematically and a linear response of 0.06-31.2 microg/mL acetaldehyde vapour was obtained. Methanol, ethanol, isopropanol, methylbenzene, chloroform, dichlormethane and acetonitrile did not interfere with the determination of acetaldehyde. Acetaldehyde vapour could also be distinguished from some homologous series such as formaldehyde, cinnamaldehyde, glutaraldehyde and benzaldehyde on this catalyst, possibly due to the stereoselectivity of the zeolite and its specific reaction mechanism. Moreover, acetaldehyde was quantified without detectable interference from formaldehyde in four artificial samples. Thus, this kind of cataluminescence-based sensor could be potentially extended to the analysis of volatile organic compounds in air, and the simple and portable properties of cataluminescence-based sensors could also make them beneficial in many areas of analytical science.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.1002/bio.987 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Low-temperature catalytic oxidation of ethanol over doped nickel phosphates.
Environ Sci Pollut Res Int
January 2025
Laboratory of Coordination and Analytical Chemistry (LCCA), Department of Chemistry, Faculty of Sciences, Chouaïb Doukkali University, Ben Maachou Road, B.P: 20, 24000, El Jadida, Morocco.
This work is focused on the synthesis and performance of Ni(PO)-based catalysts doped with Cu, Co, Mn, Ce, Zr, and Mg for the complete oxidation of ethanol, aiming at reducing emissions from ethanol-blended gasoline. Nickel phosphate was prepared via the co-precipitation method, followed by impregnation with the specified dopants. The catalysts were thoroughly characterized by XRD, N-physisorption, XRF, FTIR and Raman spectroscopy, FESEM, NH-TPD, CO-TPD, and H-TPR to explain their performance.
View Article and Find Full Text PDFNew Insights into the Pathogenesis of Alcoholic Liver Disease Based on Global Research.
Dig Dis Sci
January 2025
Provincial-Level Key Laboratory for Molecular Medicine of Major Diseases and The Prevention and Treatment With Traditional Chinese Medicine Research in Gansu Colleges and University, Gansu University of Chinese Medicine, Lanzhou, China.
Background And Aims: Alcoholic liver disease (ALD) is the leading cause of death among alcohol-related diseases, yet its pathogenesis remains incompletely understood. This article employs data mining methods to conduct an indepth study of articles on ALD published in the past three decades, aiming to elucidate the pathogenesis of ALD.
Methods: Firstly, articles related to the pathogenesis of ALD were retrieved from the Web of Science (WOS) database.
[Therapeutic effect and mechanism of Jingfang Granules on chronic fatigue syndrome based on intestinal flora and metabolomics].
Zhongguo Zhong Yao Za Zhi
December 2024
School of Pharmacy, Shandong University of Traditional Chinese Medicine Ji'nan 250355, China State Key Laboratory of Integration and Innovation of Classic Formula and Modern Chinese Medicine, Lunan Pharmaceutical Group Co., Ltd. Linyi 276005, China.
This study aims to investigate the protective effect and potential mechanism of Jingfang Granules(JF) on the mouse model of chronic fatigue syndrome(CFS). Mice were randomized into normal, model, and low-, medium-, and high-dose(0.9, 1.
View Article and Find Full Text PDFPost-COVID metabolic enzyme alterations in K18-hACE2 mice exacerbate alcohol-induced liver injury through transcriptional regulation.
Free Radic Biol Med
January 2025
Korea Mouse Phenotyping Center, Seoul National University, Seoul 08826, Republic of Korea; Laboratory of Developmental Biology and Genomics, Research Institute for Veterinary Science, and BK21 PLUS Program for Creative Veterinary Science Research, College of Veterinary Medicine, Seoul National University, Seoul 08826, Republic of Korea; Interdisciplinary Program for Bioinformatics, Program for Cancer Biology and BIO-MAX/N-Bio Institute, Seoul National University, Seoul 08826, Republic of Korea. Electronic address:
Article Synopsis
- COVID-19, caused by SARS-CoV-2, poses serious global health risks, including the potential for secondary liver injury related to metabolic enzyme changes.
- This study explores how prior infection with SARS-CoV-2 affects alcohol-induced liver damage, using transgenic mice that express human ACE2.
- Results showed that infected mice experienced worsened liver injury after alcohol consumption, with alterations in metabolic enzymes and increased levels of a toxic alcohol byproduct, indicating a complex interaction between COVID-19 and alcohol effects on the liver.
Pollution characteristics and potential sources of Peroxyacetyl Nitrate in a petrochemical industrialized City, Northwest China.
Chemosphere
January 2025
Key Laboratory for Environmental Pollution Prediction and Control, College of Earth and Environmental Sciences, Lanzhou University, Lanzhou, Gansu Province, 730000, China; Laboratory for Earth Surface Processes, College of Urban and Environmental Sciences, Peking University, Beijing, 100871, China.
Peroxyacetyl Nitrate (CHC(O)ONO, PAN), a typical secondary product of photochemical reactions, is well known to be a better photochemical indicator due to the only secondary photochemical source in the troposphere. Studies on PAN pollution are sparse in northwest China, resulting in a limited understanding of photochemical pollution in recent years. Herein, the measurement of PAN, O, volatile organic compounds (VOCs), NO, other related species, and meteorological parameters were conducted from May 1 to August 31, 2022, at an urban site in Lanzhou.
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!