Πλοήγηση ανά Θέμα "Chemistry, Analytical"
Αποτελέσματα 21-40 από 67
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Elimination profiles of flurbiprofen and its metabolites in equine urine for doping analysis
(2001)Flurbiprofen and its main acidic metabolites were detected in equine urine after a single-dose administration of 500 mg flurbiprofen to two 2.5-3.5-years-old mares, in order to be used in equine doping control routine ... -
Evaluation of solid sorbents for the determination of fenhexamid, metalaxyl-M, pyrimethanil, malathion and myclobutanil residues in air samples - Application to monitoring malathion and fenhexamid dissipation in greenhouse air using C-18 or Supelpak-2 for sampling
(2006)A methodology is described for greenhouse air analysis by sampling fenhexamid, pyrimethanil, malathion, metalaxyl-M and myclobutanil in solid sorbents. Pesticides were determined by gas chromatography with NP Detector. The ... -
Gas chromatographic - Mass spectrometric cardiotonic glycosides detection in equine urine doping analysis
(2004)A screening method for the detection of cardiotonic glycosides in horse's urine is presented in this paper. This method is based on the detection by gas chromatography-mass spectrometry (GC-MS) and gas chromatography-high ... -
A gas chromatographic determination of residues of eleven insecticides and two metabolites on olive tree leaves
(2004)A gas chromatographic (GC) method was developed and statistically validated for the simultaneous determination of residues of pyrethroid, endosulfan, and organophosphorus insecticides and some of their metabolites on olive ... -
GC-MS analysis of blood for the metabonomic investigation of the effects of physical exercise and allopurinol administration on rats
(2014)Exhaustive exercise is a generator of free radicals and reactive species in mammals. Allopurinol is a known inhibitor of xanthine oxidase, a source of free radicals during exercise. In this study, the influence of allopurinol ... -
Headspace single-drop microextraction of common pesticide contaminants in honey-method development and comparison with other extraction methods
(2012)In the present study the main factors that may influence the headspace single-drop microextraction (HS-SDME) of common pesticide contaminants (diazinon, lindane, chlorpyrifos ethyl, p,p'-DDE, and endosulfan) that may occur ... -
Heavy metal concentrations in soils and irrigation waters in Thessaly region, Central Greece
(2005)The purpose of this work was to provide information on heavy metals concentrations in soils and in irrigation water in Thessaly, Central Greece, where tobacco (Nicotiana tabacum) is cultivated. Tobacco tends to accumulate ... -
Heavy-Metal Concentration in Tobacco Leaves in Relation to Their Available Soil Fractions
(2009)Tobacco (Nicotiana tabacum) is one of the most important agricultural products in Greece. The accumulation of heavy metals in tobacco leaves in accordance with a possible risk of transferring them to people by smoke is ... -
Heparan sulfate: biological significance, tools for biochemical analysis and structural characterization
(2011)Heparan sulfate (HS) and heparin (HP) are functionally important glycosaminoglycans, which interact with a plethora of proteins and participate in several cellular events. They form specific proteoglycans, which are ... -
Herbaceous Plant Diversity and Identification of Indicator Species in Olive Groves in Central Greece
(2013)The present study is aimed at assessing the herbaceous plant diversity and determining the specific species related to different management systems in olive grove ecosystems [organic, conventional (unsprayed), and conventional ... -
High-performance liquid chromatographic determination of benzoylurea insecticides residues in grapes and wine using liquid and solid-phase extraction
(1999)A method for the determination of the benzoylurea insecticides diflubenzuron, triflumuron, teflubenzuron, lufenuron and flufenoxuron in grapes and wine by HPLC has been developed and validated. Grape samples (50 g) were ... -
Identification of red natural dyes in post-byzantine icons by HPLC
(2005)A high performance liquid chromatography (HPLC) methodology, combined with UV-Vis Diode Array Detection, is developed for the separation and identification of five reddish natural dyestuffs: cochineal, madder, lac dye, ... -
Identification of the commonest cystic fibrosis transmembrane regulator gene Delta F508 mutation: evaluation of PCR-single-strand conformational polymorphism and polyacrylamide gel electrophoresis
(2006)In the present study we investigated whether single-strand conformational polymorphism (SSCP) and polyacrylamide gel electrophoresis (PAGE) could be used for the identification of the CFTR Delta F508 gene mutation, which ... -
Impact of biological factors on binding media identification in art objects: Identification of animal glue in the presence of Aspergillus niger
(2004)The materials and especially organic materials used for creation of art objects can be utilized by various microorganisms for their growth and facilitate the microbial colonization of the object. An understanding of the ... -
Impact of New Soil Amendments on the Uptake of Lead by Crops
(2013)In the present article, the reclamation of lead (Pb)-contaminated soils by adding zeolite, bentonite, goethite, and two newly produced adsorbents consisting of zeolite and goethite (systems I and II) was studied. These ... -
Importance of high-performance liquid chromatographic analysis of serum N-acylneuraminic acids in evaluating surgical treatment in patients with early endometrial cancer
(1999)The objectives of this study were the quantification of the two major sialic acid (Sia) forms - N-acetylneuraminic (Neu5Ac) and N-glycolylneuraminic acids (Neu5Gc) - in serum before and after surgical treatment of early ... -
In vivo evaluation of CYP1A2 CYP2A6, NAT-2 and xanthine oxidase activities in a Greek population sample by the RP-HPLC monitoring of caffeine metabolic ratios
(2007)A RP-HPLC method was developed for the assessment of caffeine and its metabolites in urine and was used for the evaluation of the CYP1A2, CYP2A6, xanthine oxidase (XO) and N-acetyl-transferase-2 (NAT-2) in vivo activities ... -
Incubation experiments on net nitrogen mineralization in organic Greek soils
(2005)Aerobic incubation experiments were conducted in organic surface samples collected from arable soils of Philippoi, in Northern Greece. Laboratory experiments were carried out to investigate the nitrogen (N) mineralized ... -
Influence of biosolids application on some soil physical properties
(2005)Biosolids land application is a widely accepted option throughout the world because of its beneficial effects on soil chemical and physical properties and crop yield. These effects-e specially those pertaining to soil ... -
Influence of liming and nitrogen forms on boron uptake by tobacco
(2005)The purpose of this study was to investigate the influence of soil liming and fertilizer nitrogen forms on the availability of soil B and its uptake by tobacco plant. A field experiment was conducted on an acid Typic ...