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Assessing the Absorption Degree of the Nitrogen Forms from Soil into Plant Using the 15N Isotope as a Marker

References Axente D., Marcu C., Mureşan A., Kacsar M., Mişan I., Openeciu G., Gligan N., Cristea G., 2010. Experimental plant for simultaneous production of 14N and 15N by 15N/14N exchange in NO, NO2 - HNO3 system under pressure. Isotopes in Environmental and Health Studies. Germania, Vol. 46 (2), 242-248. Butterbach-Bahl K., Baggs E.M., Dannenmann M., Kiese R., Zechmeister-Boltenstern S., 2013. Nitrous oxide emissions from soils: how well do we understand the processes and their controls? Phil Trans R. Soc. B 368: 20130122

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Assessment of cortisol and DHEA concentrations in Griffon vulture (Gyps fulvus) feathers to evaluate its allostatic load

. (2012). Non-breeding feather concentrations of testosterone, corticosterone and cortisol are associated with subsequent survival in wild house sparrows. Proc. Biol. Sci., 279: 1560–1566. Kouwenberg A.-L., Mark Hipfner J., McKay D.W., Storey A.E. (2013). Corticosterone and stable isotopes in feathers predict egg size in Atlantic Puffins Fratercula arctica . Ibis, 155: 413–418. Kroboth P.D., Salek F.S., Pittenger A.L., Fabian T.J., Frye R.F. (1999). DHEA and DHEA-S: a review. J. Clin. Pharmacol., 39: 327–348. Labrie F., Luu-The V., Martel C

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Protective role of propolis on low and high dose furan-induced hepatotoxicity and oxidative stress in rats

findings on furan in food Annex corrigendum 2004 16 Goldmann T., Périsset A., Scanlan F., Stadler R.H.: Rapid determination of furan in heated foodstuffs by isotope dilution solid phase micro-extraction-gas chromatography-mass spectrometry (SPME-GC-MS). Analyst 2005, 130, 878–883. 10.1039/b419270b 15912236 Goldmann T. Périsset A. Scanlan F. Stadler R.H. Rapid determination of furan in heated foodstuffs by isotope dilution solid phase micro-extraction-gas chromatography-mass spectrometry (SPME-GC-MS) Analyst 2005 130 878 883 17 Habig W

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Determination of steroid esters in hair of slaughter animals by liquid chromatography with tandem mass spectrometry

from the tail and neck of the individual ( 4 ). The transport conditions to the laboratory are also important; dry samples should be sent at ambient temperature, in a paper envelope, aluminium foil, and a plastic or glass vial ( 19 ). Recently, hair samples have become a popular matrix of choice for testing hormone abuse in veterinary research in animals. Currently, only one of the available instrumental techniques of detection – the highly specialised gas chromatography combustion isotope ratio mass spectrometry (GC–C-IRMS, based on 13 C/ 12 C isotope ratio

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Colonization of hardwood and pine wood chips by mites (Acari), with particular reference to oribatid mites (Oribatida)

oribatid mites (Oribatida, Acari): evidence from stable isotope ratios ( 15 N/ 14 N). Soil Biology and Biochemistry , 36, 1769–1774. Siepel, H. 1994. Life – history tactics of soil microarthropods. Biology and Fertility of Soils , 18, 263–278. Skubała, P., Gulvik, M. 2005. Pioneer oribatid mite communities (Acari: Oribatida) in natural (glacier foreland) and anthropogenic (post-industrial dumps) habitats. Polish Journal of Ecology , 53, 105–111. Treder, W., Klamkowski, K., Krzewińska, D., Tryngiel-Gać, A. 2009. The latest trends in irrigation

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The influence of surface fire on radial and height growth of Pinus sylvestris L. in forest-steppe in Ukraine

? Environmental Research Letters , 3, 3–10. Riegel, G., Miller, R., Krueger, W. 1992. Competition for resources between understory vegetation and overstory Pinus ponderosa in Northeastern Oregon. Ecological Applications , 2, 71–85. Rötzer, T., Seifert, T., Gayler, S., Priesack, E., Pretzsch, H. 2012. Effects of Stress and Defence Allocation on Tree Growth: Simulation Results at the Individual and Stand Level. In: Tracing Carbon Fluxes: Resolving Complexity Using Isotopes (eds.: R. Matyssek, H. Schnyder, W. Oßwald, H. Pretzsch). Technische Universitat Munchen, 401

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Confirmatory method for the determination of nitroimidazoles in milk by liquid chromatography - tandem mass spectrometry

Research on Cancer (IARC): Monographs on the evaluation of carcinogenic risks to humans. Overall evaluations of carcinogenicity. Supplement 7 1987, 250. 9. Mitrowska K., Posyniak A., Zmudzki J.: Multiresidue method for the determination of nitroimidazoles and their hydroxy- metabolites in poultry muscle, plasma and egg by isotope dilution liquid chromatography mass spectrometry. Talanta 2010, 81, 1273-1280. 10. Ortelli D., Cognard E., Jan P., Edder P.: Comprehensive fast multiresidue screening of 150 veterinary drugs in milk by ultra

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Development of LC-MS/MS confirmatory method for the determination of testosterone in bovine serum

Institute of Public Health and Environment – RIVM, the Netherlands 2004, 1–17. 4. Bulska E., Gorczyca D., Zalewska I., Pokrywka A., Kwiatkowska D.: Analytical approach for the determination of steroid profile of humans by gas chromatography isotope ratio mass spectrometry aimed at distinguishing between endogenous and exogenous steroids: J Pharmaceut Biomed 2015, 106, 159–166. 5. Commission Decision 2002/657/EC (2002) of 12 th August 2002 implementing Council Directive 96/23/EC concerning the performance of analytical methods and the interpretation of results

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Levels of the natural hormones 17β-oestradiol and testosterone in serum of cattle: results from population studies in Poland

References 1. Angeletti R., Contiero L., Gallina G., Montesissa C.: The urinary ratio of testosterone to epitetosterone: a good marker of illegal treatment also in cattle? Vet Res Comm 2006, 30, 127-131. 2. Chen Y., Yazdanpanah M., Hoffman B.R., Diamandis E.P., Wong P-Y.: Rapid determination of serum testosterone by liquid chromatography-isotope dilution tandem mass spectrometry and a split sample comparison with three automated immunoassays. Clin Biochem 2009, 42, 484-490. 3. Council Directive 88/146/EEC. 1988

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Development and Validation of Confirmatory Method for Analysis of Nitrofuran Metabolites in Milk, Honey, Poultry Meat and Fish by Liquid Chromatography-Mass Spectrometry

Chromatography B, 864 156–160. PMid:18280226 11. Mottier P., Khong S.P., Gremaud E., Richoz J., Delatour T., Goldman T Guy P.A. (2005). Quantitative determination of four nitrofuran metabolites in meat by isotope dilution liquid chromatography–electrospray ionisation–tandem mass spectrometry. J Chromatogr A, 1067 85–91. 12. Szilagyi S., Calle B. (2006). Development and validation of an analytical method for the determination of semicarbazide in fresh egg and in egg

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