Czech Journal of Food Sciences, 2014 Headspace solid phase microextraction and purge and trap analysis were used for the determination of volatiles in beer. These methods were compared with the analysis of unconcentrated gas phase and liquid extraction. Solid phase microextraction proved to
Jana KLEINOVÁ, Bořivoj KLEJDUS
doaj +1 more source
Sorbent-Based Microextraction Combined with GC-MS: A Valuable Tool in Bioanalysis
ChemosensorsSample preparation is broadly recognized as the most critical, time-consuming, and error-prone step of a bioanalytical workflow. Over the years, the development of pretreatment methods aimed at the isolation and preconcentration of the target analytes ...
Marianna Ntorkou +1 more
doaj +1 more source
Research advances in sample pretreatment techniques for pesticide residues
Journal of Chromatography OpenPesticide residue analysis is fundamental to food safety and environmental protection, where sample pretreatment critically determines detection accuracy.
Jiarong Cui, Fengshou Dong
doaj +1 more source
The Application of Headspace: Solid-Phase Microextraction (HS-SPME) Coupled with Gas Chromatography/Mass Spectrometry (GC/MS) for the Characterization of Polymers [PDF]
, 2017 Solid-Phase Microextraction (SPME) is a very simple and efficient, solventless sample preparation method, invented by Pawliszyn and coworkers at the University of Waterloo (Canada) in 1989.
Kusch, Peter (Dr.)
core
Determination of Atrazine, Acetochlor, Clomazone, Pendimethalin and Oxyfluorfen in Soil by a Solid Phase Microextraction Method [PDF]
Pesticidi i Fitomedicina, 2008 A solid phase microextraction (SPME) method for simultaneous determination of atrazine, acetochlor, clomazone, pendimethalin and oxyfluorfen in soil samples was developed.
Rada Đurović +2 more
doaj
Magnetic dispersive solid phase microextraction coupled with on-line chemical vapor generation method to extraction/preconcentration of mercury from environmental samples and determination by graphite furnace atomic absorption spectrometry. [PDF]
, 2019 Mercury (Hg) is classified as priority hazardous substances. Concentrations found in the aquatic environment are at trace levels as result of natural processes, such as erosion and volcanism, and anthropogenic discharges related mainly to industrial and ...
Cano-Pavón, José Manuel +6 more
core
Green and sustainable evaluation of methods for sample treatment in drug analysis
Green Analytical ChemistryThe time-consuming nature of many sample treatment protocols continues to be recognized as the main bottleneck of analytical procedures, which, in most cases, use long analysis times, excessive amounts of solvents and reagents, and energy.
Héctor Martínez-Pérez-Cejuela +4 more
doaj +1 more source
Validation of an analytical method for determination of 13 priority polycyclic aromatic hydrocarbons in mineral water using dispersive liquid-liquid microextraction and GC-MS [PDF]
, 2016 Dispersive liquid-liquid microextraction (DLLME) combined with gas chromatography–mass spectrometry (GC–MS) was used for the extraction and determination of 13 polycyclic aromatic hydrocarbons (PAHs) in mineral water samples.
Bayat, Mitra. +4 more
core
Optimization of sol-gel hybrid mediated hollow fiber-solid phase microextraction for the analysis of selected aldehydes [PDF]
, 2014 Hexanal and heptanal are two promising aldehydes that have been found in biological samples of lung cancer patients. In general, aldehydes can be detected in trace level as low as part per billion or part per trillion levels.
Abd. Wahib, Siti Munirah +2 more
core
Polyaniline-polypyrrole coating for solid phase microextraction
Open Chemistry, 2007 Vickackaite Vida, Ciuvasovaite Vilma
doaj +1 more source