[PDF] Top 20 Forensic analysis of explosives from water samples using solid phase microextraction-gas chromatography
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Forensic analysis of explosives from water samples using solid phase microextraction-gas chromatography
... recovered from sites surrounding the blast ...recovered from living and deceased victims (Royds et ...expert from the FBI, they concluded that C4 explosive was used – a type manufactured mainly in ... See full document
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Solid phase microextraction-gas chromatography for the analysis of explosives in post blast water samples
... stationary phase of CAR/PDMS fiber (75 µm) is a porous material (micro-, meso- and macro-pores from 6 to 50 Å) resulting from a mixture of PDMS and CAR fibers (Supelco ...the phase is dominant ... See full document
16
Preconcentration and Determination of Organophosphorus Pesticides in Water Samples by Carbon Nanotube Reinforced Hollow Fiber Solid/Liquid Phase Microextraction and Gas Chromatography-Flame Ionization Detector
... The proposed method has several advantages such as good precision and accuracy, low cost,simplicity, quite short extraction time, and minimum organic solvent consumption. The hollow fiber SLPME device is disposable, so ... See full document
7
Multiresidue Method for Determination of 67 Pesticides in Water Samples Using Solid Phase Extraction with Centrifugation and Gas Chromatography Mass Spectrometry
... pesticides from different chemical fami- lies including organochlorines, organophosphates, carba- mates, pyrethroids, pyrimidines, azoles, triazoles and oth- ers, were chosen to be applicable to GC-MS determina- ... See full document
9
Determination of volatile alkylpyrazines in microbial samples using gas chromatography-mass spectrometry coupled with head space-solid phase microextraction
... quantitative analysis. Separation in the gas chromatography depends on several factors such as column length, column diam- eter, stationary phase, temperature programming, carrier gas ... See full document
8
Determination of some selected pesticide residues in apple juice by solid-phase microextraction coupled to gas chromatography – mass spectrometry
... Solid phase microextraction introduced by Pawliszyn and co-workers allows simultaneous ex- traction and pre-concentration of analytes from sample matrix, eliminating some disadvantages of ... See full document
8
Quantitative solid phase microextraction Gas chromatography mass spectrometry analysis of the pesticides lindane, heptachlor and two heptachlor transformation products in groundwater
... groundwater. Samples were extracted using a simple solid phase microextraction (SPME) method with a polyacrylate fibre prior to detection by gas chromatography mass ... See full document
7
Optimization of Solid Phase Microextraction Procedure Followed by Gas Chromatography with Electron Capture Detector for Pesticides Butachlor and Chlorpyrifos
... purchased from Supelco (Bellefonte, PA, ...extraction phase because of its great sensitivity. Before using, fibers were conditioned in the injection port of the gas chromatograph for ... See full document
13
Rapid monitoring of organochlorine pesticides residues in various fruit juices and water samples using fabric phase sorptive extraction and gas chromatography-mass spectrometry
... Fabric phase sorptive extraction, an innovative integration of solid phase extraction and solid phase microextraction principles, has been combined with gas ... See full document
21
Ordered Nanoporous Carbon Based Solid-Phase Microextraction for the Analysis of Nitroaromatic Compounds in Aqueous Samples
... aqueous samples include Liquid Liquid Extraction (LLE) [5], Solid Phase Extraction (SPE) [6] and ...[8]. Microextraction techniques used are including Dispersive Liquid Liquid Micro Extraction ... See full document
11
Determination of 2-phenylethanol in Rose Water Using Dispersive Liquid-Liquid Microextraction with Gas Chromatography Flame Ionization Detection
... phenylethanol from different samples, including supercritical fluid extraction (SFE) [10], solid phase extraction (SPE) [11], solid phase microextraction (SPME) [12-14], ... See full document
8
Analysis of aroma components of dark teas from five different production regions by fully automatic headspace solid phase microextraction coupled with gas chromatography mass spectrometry
... teas from five different production regions (Yunnan, Hunan, Sichuan, Guangxi, and Hubei) in China, the fully automatic headspace solid-phase microextraction (HS-SPME) method was constructed ... See full document
8
Nuclear Magnetic Resonance and Headspace Solid-Phase Microextraction Gas Chromatography as Complementary Methods for the Analysis of Beer Samples
... capillary Gas Chromatography (GC) is commonly used. Headspace Solid-Phase Microextraction (SPME) is a simpler and less expensive alternative to static ...desorbed from the fiber ... See full document
12
Simultaneous Determination of Disinfection By-products in Water Samples from Advanced Membrane Treatments by Headspace Solid Phase Microextraction and Gas Chromatography-Mass Spectrometry
... the samples were defined as the concentrations giving a response corresponding to a signal- to-noise ratio ...the samples were estimated as the concentration which gave a signal average plus three times the ... See full document
12
Biological activities and volatile constituents of Daucus muricatus L. from Algeria
... investigated using Gas Chromatography – Retention Indices (GC-RI) and GC – Mass Spectrometry ...oil from roots is mainly composed by nonterpenic oxygenated compounds ...isolated from ... See full document
10
Ways of Analysis of Fire Effluents and Assessment of Toxic Hazards
... or solid particles in a gas phase ...range from under 10 nm to over 10 ...as solid-phase products present in ...produced from incomplete combusted matter ...produced ... See full document
13
Solid-phase microextraction for bioconcentration studies according to OECD TG 305
... HOCs can be significantly reduced due to sorption to natural OM - already beneath the permitted concentra- tion of 2 mg L -1 TOC in the dilution water according to OECD TG 305. It is to be expected that resulting ... See full document
5
Development of a method for profiling of volatile organic compounds to monitor heat stress in hot water dipped apples
... headspace samples (Table ...with water at low temperature (Figure ...of using more than one cultivar when developing a VOC based method to detect the immediate heat stress response in hot ... See full document
8
A review of explosive residue detection from forensic chemistry perspective
... Solid phase extraction (SPE) is a popular method for removing impurities and pre-concentration of target analytes ...washed using methyl tert-butyl ether/pentane before ethyl acetate fraction was ... See full document
16
Characterization of volatiles Tribolium castaneum (H.) in flour using solid phase microextraction–gas chromatography mass spectrometry (SPME–GCMS)
... Senthilkumar et al. [14] were the first to detect 1-tridecene from T. castaneum. They speculated that this compound was a sex pheromone of the species in accordance with a study of male Parastizopus ... See full document
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