Πλοήγηση ανά Συγγραφέα "Tsiropoulos, N. G."
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Application of single-drop microextraction coupled with gas chromatography for the determination of multiclass pesticides in vegetables with nitrogen phosphorus and electron capture detection
Amvrazi, E. G.; Tsiropoulos, N. G. (2009)In the present work the single-drop microextraction (SDME) technique coupled with GC-NPD and GC-ECD was evaluated for the determination of multi-class pesticides in vegetables. The donor sample solution preparation was ... -
Behaviour of fenitrothion residues in leaves and soil of vineyard after treatment with microencapsulate and emulsified formulations
Likas, D. T.; Tsiropoulos, N. G. (2007)The rate of decline of fenitrothion residues was investigated in leaves and soil of vineyard over 2 months after treatment with two different kinds of commercial formulations: emulsifiable concentrate (EC) and microencapsulate ... -
Chemometric study and optimization of extraction parameters in single-drop microextraction for the determination of multiclass pesticide residues in grapes and apples by gas chromatography mass spectrometry
Amvrazi, E. G.; Tsiropoulos, N. G. (2009)A simple and rapid single-drop microextraction method coupled with gas chromatography and mass spectrometry (SDME-GC/MS) for the determination of 20 pesticides with different physicochemical properties in grapes and apples ... -
Confirmation of pesticides in water samples by mass spectrometry
Liapis, K. S.; Miliadis, G. E.; Tsiropoulos, N. G. (2000) -
Degradation and Adsorption of Pesticides in Compost-Based Biomixtures as Potential Substrates for Biobeds in Southern Europe
Karanasios, E.; Tsiropoulos, N. G.; Karpouzas, D. G.; Ehaliotis, C. (2010)Biobeds have been used in northern Europe for minimizing point source contamination of water resources by pesticides. However, little is known regarding their use in southern Europe where edaphoclimatic conditions and ... -
Degradation and adsorption of terbuthylazine and chlorpyrifos in biobed biomixtures from composted cotton crop residues
Kravvariti, K.; Tsiropoulos, N. G.; Karpouzas, D. G. (2010)BACKGROUND: Biobeds have been well studied in northern Europe, whereas little is known regarding their use in southern Europe. The degradation and adsorption of terbuthylazine (TA) and chlorpyrifos (CP) were studied in ... -
Determination of benzoylurea insecticides in apples and pears by solid-phase extraction cleanup and liquid chromatography with UV detection
Tsiropoulos, N. G.; Aplada-Sarlis, P. G.; Miliadis, G. E. (1999)A liquid chromatographic (LC) method was developed and statistically validated for simultaneous determination of 5 benzoylurea insecticides (diflubenzuron, triflumuron, teflubenzuron, flufenoxuron, and lufenuron) in apples ... -
Determination of diphenylamine in contaminated air of agricultural buildings using active sampling on solid sorbents
Gagoulia, A. G.; Amvrazi, E. G.; Tsiropoulos, N. G. (2012)This paper reports the results of a study carried out with solid sorbents in order to establish the optimum procedure for sampling and determination of diphenylamine (DPA), the most widely used post-harvest chemical in ... -
Determination of Pesticide Residues in Honey by Single-Drop Microextraction and Gas Chromatography
Tsiropoulos, N. G.; Amvrazi, E. G. (2011)A novel, simple, and rapid single-drop microextraction (SOME) procedure combined with GC has been developed, validated, and applied for the determination of multiclass pesticide residues in honey samples. The SDME was ... -
Determination of spiroxamine residues in grapes, must, and wine by gas chromatography/ion trap-mass spectrometry
Tsiropoulos, N. G.; Liapis, K.; Likas, D. T.; Miliadis, G. E. (2005)Analytical methodology was developed and validated for the determination of spiroxamine residues in grapes, must, and wine by gas chromatography/ion trap-mass spectrometry (GC/IT-MS). Two extraction procedures were used: ... -
Dissipation of teflubenzuron and triflumuron residues in field-sprayed and cold-stored pears
Aplada-Sarlis, P. G.; Miliadis, G. E.; Tsiropoulos, N. G. (1999)Dissipation of residues of benzoylurea insecticides teflubenzuron (TFB) and triflumuron (TFM) under field conditions was evaluated on a pear orchard in Greece. Residues were determined by UV-HPLC analysis, with a detection ... -
Distribution of heavy metals of agricultural soils of central Greece using the modified BCR sequential extraction method
Golia, E. E.; Tsiropoulos, N. G.; Dimirkou, A.; Mitsios, I. (2007)The state of heavy metal (Cd, Cu, Ni, Zn, Pb, and Cr) pollution was studied, in 440 texturally different soil profiles in Thessaly, an intensely cultivated region in Central Greece. The study was carried out in 2004 and ... -
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
Tsiropoulos, N. G.; Bakeas, E. B.; Raptis, V.; Batistatou, S. S. (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 ... -
Evaluation of teflubenzuron residue levels in grapes exposed to field treatments and in the must and wine produced from them
Tsiropoulos, N. G.; Aplada-Sarlis, P. G.; Miliadis, G. E. (1999)Dissipation of benzoylurea insecticide teflubenzuron in grapes exposed to field treatments was evaluated. Vines of a white grape vineyard located in central Greece were sprayed twice, at a 28-day interval, with a commercial ... -
Factors affecting the efficacy of non-fumigant nematicides for controlling root-knot nematodes
Giannakou, I. O.; Karpouzas, D. G.; Anastasiades, I.; Tsiropoulos, N. G.; Georgiadou, A. (2005)Second-stage juveniles (J2) and egg masses of root-knot nematodes as well as root debris heavily infected by the latter were exposed for different periods of time to six different doses of the nematicides cadusafos and ... -
Fate of three insect growth regulators (IGR) insecticides (flufenoxuron, lufenuron and tebufenozide) in grapes following field application and through the wine-making process
Likas, D. T.; Tsiropoulos, N. G. (2011)The dissipation of three insecticide flufenoxuron, lufenuron and tebufenozide residues in grapes after field treatments and during the wine-making process was assessed. Residues were determined in grape, must, centrifuged ... -
Field persistence studies on pendimethalin residues in onions and soil after herbicide postemergence application in onion cultivation
Tsiropoulos, N. G.; Miliadis, G. E. (1998)Field studies were undertaken to evaluate the fate of pendimethalin residues in spring and dry onions, after postemergence application of the herbicide in a clay soil onion planting in central Greece, at rates of 1.32 and ... -
A gas chromatographic determination of residues of eleven insecticides and two metabolites on olive tree leaves
Aplada-Sarlis, P.; Miliadis, G. E.; Liapis, K.; Tsiropoulos, N. G. (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 ... -
Headspace single-drop microextraction of common pesticide contaminants in honey-method development and comparison with other extraction methods
Amvrazi, E. G.; Martini, M. A.; Tsiropoulos, N. G. (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 ... -
High-performance liquid chromatographic determination of benzoylurea insecticides residues in grapes and wine using liquid and solid-phase extraction
Miliadis, G. E.; Tsiropoulos, N. G.; Aplada-Sarlis, P. G. (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 ...