Methyl salicylate (MeS) is used as a chemical warfare agent simulant to test chemical protective garments and other individual personal protective gear. The accurate and real-time detection of this analyte is advantageous for various testing regimes. This paper reports the results of MeS vapor exposures on polymer-filled capacitance-based sensors at temperatures ranging from 15 degrees C to 50 degrees C under dry and humid conditions. Multiple capacitors were arranged in an array on a silicon chip each having a different sorptive polymer. The sensors used parallel-plate electrode geometry to measure the dielectric permittivity changes of each polymer when exposed to water and MeS vapor. Of the four polymers tested against MeS, the optimal polymer displayed near or sub-parts-per-million detection limits at 35 degrees C (0-80%RH).
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.1016/j.talanta.2008.04.035 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Electrophysiological and Behavioral Responses of (Coleoptera: Curculionidae) to Plant Volatiles.
Plants (Basel)
December 2024
Key Laboratory Biological Crop Pathogens & Insects Zhejiang Pro, State Key Laboratory Rice Biology, Institute Insect Science, Zhejiang University, Hangzhou 310058, China.
The flea-weevil Korotyaev (Coleoptera: Curculionidae) is an Eastern Palaearctic Steppe species, and a serious pest of elm trees ( spp., Ulmaceae) by feeding on the leaves (adults) or mining them heavily (larvae) in Xinjiang, China. In order to search for chemical and ecological pest management practices, the olfactory preferences of for leaves of three elm species were investigated.
View Article and Find Full Text PDFActive Components of 16 Essential Oils and Their Fumigation Effects on (Lepidoptera: Pyralidae).
Insects
December 2024
Honeybee Research Institute, Jiangxi Agricultural University, Nanchang 330045, China.
The greater wax moth (GWM, ) is a prevalent pest of the honeybee and a significant risk to both honeybee populations and honeycomb storage. Research on the toxicity of essential oils (EOs) to GWM larvae has provided promising results, although their ovicidal effects and active ingredients require further study. Identifying effective plant compounds is essential for developing insecticides for GWM control.
View Article and Find Full Text PDFRisk assessment and monitoring of tranquilizers in live seafood: Analysis of natural essential oil and 2-phenoxyethanol by GC-MS/MS.
Sci Total Environ
January 2025
Division of Civil Environmental Engineering, Pusan National University, 2, Busandaehak-ro 63beon-gil, Geumjeong-gu, Busan 46241, Republic of Korea; Institute for Environmental and Energy, Pusan National University, 2, Busandaehak-ro 63beon-gil, Geumjeong-gu, Busan, 46241, Republic of Korea. Electronic address:
An analytical method for nine tranquilizer compounds, including eight major natural oil components and 2-phenoxyethanol, was developed using gas chromatography tandem mass spectrometry and validated under CODEX and National Institute of Food and Drug Safety Evaluation guidelines. Subsequently, 315 live seafood samples under Korean preference for sashimi (eight species) were monitored with sales distribution channels and place of origin. A total of 76 detection cases in 65 seafood samples contained the target tranquilizer compounds at concentrations ranging from 2.
View Article and Find Full Text PDFPlant Volatile Methyl Salicylate Primes Wheat Defense Against the Grain Aphid by Altering the Synthesis of Defense Metabolites.
Plant Cell Environ
December 2024
College of Life Science/Hebei Basic Science Center for Biotic Interactions, Institute of Life Science and Green Development, Hebei University, Baoding, China.
Wheat (Triticum aestivum L.) is one of the most important staple crops all over the world. Its productivity is adversely affected by aphid infestation.
View Article and Find Full Text PDFWRKY1-Mediated Interconversion of MeSA and SA in Neighbouring Apple Plants Enhances Defence Against Powdery Mildew.
Plant Cell Environ
December 2024
College of horticulture, Nanjing Agricultural University, Nanjing, Jiangsu Province, China.
Powdery mildew (PM), caused by the biotrophic fungus Podospharea leucotricha, is a major threat to apple production. Plant-plant communication (PPC) is a crucial strategy for plant communities to enhance their defence against pathogens. The interconversion of methyl salicylate (MeSA) and salicylic acid (SA) is critical for PPC regulation, but the mechanism of MeSA-mediated PPC is not fully understood.
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!