Zobrazeno 1 - 10
of 18
pro vyhledávání: '"Marion Gfrerer"'
Autor:
Ernst Lankmayr, Marion Gfrerer
Publikováno v:
Analytica Chimica Acta. 533:203-211
In the present study, a microwave-assisted extraction method has been investigated for the extraction of persistent organochlorine pesticides from sediment in comparison to the classical Soxhlet extraction. The extraction procedure has been screened
Publikováno v:
Journal of Chromatography B. 813:151-158
2,5-Hexanedione, the main metabolite of n-hexane, can be responsible for axonal degeneration symptoms via formation of pyrrol-adducts with several amino acids. In order to make it amenable to gas chromatographic analysis, a protocol including microwa
Publikováno v:
Chromatographia. 60:681-686
A new extraction technique, fluidized-bed extraction, has been investigated for isolation of organochlorine pesticides from sediment. The extraction was optimized, by means of a surface-response design, by considering the number of extraction cycles,
Publikováno v:
Analytica Chimica Acta. 527:53-60
In recent years, the classical Soxhlet extraction of PAHs and PCBs from matrices such as soil, sediments, sludges and related matrices has been substituted by faster and less-solvent-consuming automated techniques. This paper describes the performanc
Publikováno v:
Journal of Biochemical and Biophysical Methods. 61:143-153
The aim of any extraction method in analytical chemistry is to effectively separate the analytes from the matrix with minimal solvent and time required. In this study, a comparison of the classical Soxhlet extraction and some new turbulent solid–li
Autor:
Ernst Lankmayr, Thomas Wenzl, Jan Mocak, Katja Serdt, Donata Bandoniene, Siegfried Wagner, Branko Balla, Marion Gfrerer
Publikováno v:
Journal of Biochemical and Biophysical Methods. 61:95-106
The main outcome of this work is elaboration of classification models for edible oil samples representing the most widespread brands of Austrian pumpkin seed oil. A complete spectral characterisation of the pumpkin seed oil samples by UV-Vis, NIR and
Publikováno v:
Analytical and Bioanalytical Chemistry. 378:1861-1867
The performances of Soxhlet extraction, dive-in Soxhlet extraction, microwave-assisted extraction (MAE), accelerated solvent extraction (ASE), fluidized-bed extraction (FBE), and ultrasonic extraction (UE) for the analysis of organochlorine pesticide
Autor:
Ernst Lankmayr, Marion Gfrerer
Publikováno v:
Journal of Separation Science. 26:1230-1236
The production of pumpkin seed oil requires a roasting of the pumpkin seeds, at temperatures generally higher than 60°C. The roasting at elevated temperatures produces the typical taste of the pumpkin seed oil but may also be the source of a contami
Publikováno v:
International Journal of Environmental Analytical Chemistry. 83:111-125
A multi-residue method for the screening and analysis of 66 common pesticides from hydrological samples, including sediment, suspended solids and water is presented. The investigated pesticides belong to the following chemical classes: polychlorinate
Publikováno v:
Journal of Biochemical and Biophysical Methods. 53:217-228
The Liaoning Province in Eastern China has a prosperous economy and traditional agricultural background. Steadily increasing water demand implies the direct use of surface water for drinking water support and foodstuff production. Due to the extensiv