منابع مشابه
optimization of solid phase micro-extraction (spme) for monitoring occupational exposure to ethyl benzene
background and objectives: analytical methods for volatile organic compounds (vocs) in different samples need extraction of compounds, by applying hazardous solvents. solid phase micro-extraction (spme) is a solvent-free equilibrium extraction method, in which proper calibration can allow quantitative determinations of vocs at a very good sensitivity without the use of any organic solvent. vocs...
متن کاملExtraction and analysis of polycyclic aromatic hydrocarbons (PAHs) by solid phase micro-extraction/supercritical fluid chromatography (SPME/SFC)
Solid phase micro-extraction (SPME) is a clean and simple pre-concentration method. Previously used for trace analysis of volatil compounds, the use of SPME was extended to non volatil molecules with the development of an SPME /HPLC interface. This new interface allows the extraction and the analyses of high molecular weight compounds found in aqueous samples. Since supercritical fluid chromato...
متن کاملHead Space Solid Phase Micro-Extraction (HS - SPME) of volatile organic compounds produced by Sporidiobolus salmonicolor (CBS 2636)
Recebido para publicação em 8/10/2008 Aceito para publicação em 8/7/2009 (003881) 1 Departamento de Engenharia de Alimentos, Universidade Regional Integrada do Alto Uruguai e das Missões – URI, CEP 99700-000, Erechim RS, Brasil, E-mail: [email protected] 2 Departamento de Física e Quimica, Universidade de Caxias do Sul – UCS 3 Departamento de Engenharia Química, Universidade Federal de Santa ...
متن کاملVolatile profiles of toxigenic and non-toxigenic Aspergillus flavus using SPME for solid phase extraction.
Toxigenic and atoxigenic strains of Aspergillus flavus were grown on potato dextrose agar (PDA) and wetted (23% moisture) sterile, cracked corn for 14 and 21 days, respectively. Volatile compounds produced by A. flavus, as well as those present in the PDA controls and sterile cracked maize, were collected using solid-phase micro-extraction (SPME) and identified by gas chromatography/mass spectr...
متن کاملSolid-phase micro-extraction (SPME) in the early detection of potentially active volatile compounds from organic wastes used for the management of soil-borne pathogens.
The complex molecular assemblages were analysed in the soil gas phase after applying pine forest wastes (PFW) or sugarbeet vinasses (SBV) for soil-borne crop pests' management. For this purpose, solid-phase micro-extraction (SPME) and gas chromatography (GC) were used coupled with mass spectrometry (MS). The organic wastes were applied either to Calcic Entisol or Haplic Arenosol moistened at fi...
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ژورنال
عنوان ژورنال: Nippon Shokuhin Kagaku Kogaku Kaishi
سال: 2018
ISSN: 1341-027X,1881-6681
DOI: 10.3136/nskkk.65.215