Solid Phase Microextraction Articles & Analysis
37 articles found
However, because the crude extracts contain a high concentration of secondary metabolites, additional purification techniques are necessary. Methods such as liquid-phase extraction, solid-phase extraction, and solid-phase microextraction are commonly used to enrich the target hormones while ...
This technique is widely employed for the analysis, remediation, and purification of solids, liquids, and gases. In this comprehensive guide, we will delve into the principles, applications, and methodologies of TDU. ...
This paper presents the new ISO 17943 Standard using Solid Phase Microextraction (SPME) and GC/MS. The sample preparation by SPME enables limits of detection and easy automation of the whole method. ...
This paper presents the new ISO 17943 Standard using Solid Phase Microextraction (SPME) and GC/MS. The sample preparation by SPME enables low limits of detection and easy automation of the whole method. ...
An automated solid-phase microextraction gas chromatography/mass spectometry (SPME-GC/MS) method was developed for the determination of semi-volatile pesticides from several classes with a wide range of polarities in an environmental matrix, and validated according to the rigorous standards of a large commercial laboratory reporting data ...
The amphiphilic nature of surfactants drives the formation of micelles at the critical micelle concentration (CMC). Solid‐phase microextraction (SPME) fibres were used in the present study to measure CMC values of twelve nonionic, anionic, cationic and zwitterionic surfactants. ...
Odorous water samples were taken at different locations. Headspace solid phase microextraction combined with gas chromatography/mass spectrometry (GC/MS) was employed to identify possible odorants. ...
Sites investigated included New Bedford Harbor, Palos Verdes Shelf, and Naval Station Newport; and the passive samplers evaluated were polyethylene, polydimethylsiloxane‐coated solid‐phase microextraction fibers, semipermeable membrane devices, and polyoxymethylene. ...
Water samples were collected monthly from seven sites in the reservoir and analysed using solid phase microextraction combined with gas chromatography-mass spectrometry. ...
In this study, the organic fouling in RO membranes treating the effluent of a secondary treatment from an urban wastewater treatment plant was characterized. Headspace solid phase microextraction (HS-SPME) coupled with gas chromatography–mass spectrometry has been used for the first time, to provide valuable information of organic fouling. ...
The resulting method uses negligible‐depletion direct immersion solid‐phase microextraction (nd‐SPME) and gas chromatography – mass spectrometry (GC‐MS). ...
The toxicity of chemically dispersed heavy fuel oil (HFO) and 3 distillate fractions to rainbow trout (Oncorhynchus mykiss) embryos was evaluated using the PETROTOX model and a biomimetic extraction technique that involved passive sampling of oil‐contaminated test media with solid‐phase microextraction (SPME) fibers. Test solutions for ...
In this special edition you'll find valuable information on the tools you need for analysis of petroleum samples and petrochemical workplace conditions: Including: Analytical Standards and Proficiency Testing Standards Certified Reference Materials (CRM) Solid Phase Microextraction (SPME) Active and Passive Sampling Devices ...
To identify the odorous compounds and assess the effectiveness of the odour reduction measures trialled in this study, headspace solid-phase microextraction gas chromatography-mass spectrometry (HS SPME-GC-MS) methods were developed. ...
For this purpose, fruit ripeness was evaluated, for one thing, by a volatile compound measuring system known as electronic nose (EN), and for another thing, by headspace solid phase microextraction and gas chromatography mass spectrometry (HS-SPME/GC-MS). ...
Bioaccumulation potential of PBDEs and DBDPE from field‐collected sediment to the oligochaete Lumbriculus variegatus was evaluated using a 49‐d exposure including a 28‐d uptake and a 21‐d elimination phases. All PBDEs and DBDPE were bioavailable to the worms with biota‐sediment accumulation factors (BSAFs) ranging from 0.0210 to 4.09 g organic carbon/g lipid. Yet the ...
Sampler polymers included polyethylene (PE), polydimethylsiloxane (PDMS) coated solid phase microextraction (SPME) fibers, and polyoxymethylene (POM). ...
The development of an in vitro bioavailability method will decrease time, expense, and use of solvents in future analyses. A thin‐film‐solid phase microextraction (TF‐SPME) method for determining the bioavailability of several EEDCs detected in biosolids was developed and optimized. ...
Solid phase microextraction (SPME) has often been used to estimate the freely dissolved concentration (Cfree) of organic contaminants in sediments. ...
Passive sampling polymers included low density polyethylene (PE) and polyoxymethylene (POM) sheets, and polydimethylsiloxane (PDMS) coated solid phase microextraction (SPME) fibers. Dissolved concentrations were calculated using measured sampler concentrations and laboratory derived partition coefficients. ...