This study examined the chemical composition of essential oil extracted from bark Alseodaphne peduncularis Meisn. (Lauraceae) by hydrodistillation with 0.2% yield. The was chemically characterised gas chromatography-flame ionization detector and chromatography-mass spectrometry, 31 constituents comprising 94.3% total content were identified. These included β-caryophyllene (24.5%), viridiflorol ...

Recent innovations in ambient ionization technology for the direct analysis of various samples in their native environment facilitate the development and applications of mass spectrometry in natural science. Presented here is a novel, convenient and flame-based ambient ionization method for mass spectrometric analysis of organic compounds, termed as the ambient flame ionization (AFI) ion source...

background : evaluation of exposition to volatile organic compounds (voc) and compare urinary level of urinary biological exposure index in sweepers in west of iran . methods: this study was carried out on 40 street sweepers and 40 non-exposed as control group living in hamadan city, west of iran. voc was analyzed using gas chromatography equipped with a flame ionization detector (fid). the uri...

A new protocol was used to measure the quantity of reactive organic gases (ROG) being emitted from animal feeding operations (AFO) such as feed yards, dairies and poultry houses. The protocol makes use of a portable gas chromatograph (GC) that is brought to the field where actual measurements are taken in conjunction with the EPA flux chamber sampling protocol. To have the analyte concentration...

The study was undertaken to determine the purity level of eleven selected pesticides collected from different locations Bangladesh. In this study, Gas Chromatography coupled with Flame Ionization Detector (FID) and Electron Captured (ECD) used acephate, diazinon, dimethoate, chlorpyrifos, quinalphos, malathion, fenitrothion cypermethrin, fenvalerate. High Performance Liquid (HPLC 20A Prominence...