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0.095 mg/kg of the dry drug. Cultivated plants contained 0.020Ð0.055 mg Se/kg. Key words: Teucrium, Selenium, Hydride Generation Atomic Absorption Spectrometry Introduction Croatian species belonging to genus Teucrium (Lamiaceae) have not been completely chemically and pharmacologically investigated so far. They have been used for centuries in folk medicine as cholagoga as well as antispasmodic, diuretic, anti- diabetic (Gharaibeh et al., 1988), antiphlogistic, antirheumatic, antiseptic, anthelmintic, carmina- tive and flavouring agents (Gharaibeh et al., 1989

, 1988. [5] R. Dobrowolski: “Determination of Ni and Cr in soils by slurry graphite furnace atomic absorption spectrometry”, Spectrochim. Acta B, Vol. 51, (1996), pp. 221–229. [6] A. Hoening and A. Cilissen: “Determination of cadmium in soil by slurry — sampling graphite — furnace atomicabsorption spectrometry”, Spectrochim. Acta B, Vol. 48, (1993), pp. 1003–1012. [7] J. Mierzwa, Y.C. Sun and M.H. Yang: “Determination of Chromium, manganese and vanadium in sediments and soils by modifier — free slurry sampling

[1] D.L. Tsalev: “Vapor generation of electrothermal atomic absorption spectrometry?-Both!”, Spectrochim. Acta B, Vol. 55, (2000), pp. 917–933. [2] G. Drasch, L. Meyer, G. Kauert: “Application of the furnace atomic absorption method for the detection of arsenic in biological samples by means of the hydride technique”, Fresen. J. Anal. Chem., Vol. 304, (1980), pp. 141–142. [3] R.M. Camero and R.E. Sturgeon: “Hydride generation-electrostatic depositiongraphite furnace atomic

[1] D. Harrison, D. Littlejohn and G.S. Fell: “Determination of Selenium in Human Hair and Nail by Eletrothermal Atomic Absorption Spectrometry”,J. Anal. At. Spectrom., Vol. 10, (1995), pp. 215–222. [2] Ph. Quevauviller, M.A. Maier and B. Griepink:Quality Assurance for Environmental Analysis, Elsevier, Amsterdam, Vol. 17, 1995. [3] M. Verlinden, H. Deelstra and E. Adriaenssens: “The determination of selenium by atomic—absorption spectrometry”,Talanta, Vol. 28, (1981), pp. 637–643.

(1996) Talanta 43(6): 867-880. Pinillos SC, Asensio JS, Bernal JG (1995) Anal. Chim. Acta 300(1-3): 321-327. Pradosh R, Anupama S (2002) Current Science 82(1): 38-45. Profumo A, Merli D, Pesavento M (2005) Anal. Chim. Acta 539(1-2): 245-250. Prousek J (2001) Rizikové vlastnosti látok, STU, Bratislava. Shemirani F, Baghdadi M, Ramezani M (2005) Talanta, 65(4), 882-887. STN EN ISO 15586 (2003) Quality of water. Determination of trace elements by electrothermal atomic absorption spectrometry. Bratislava. Svancara I, Vytras K, Bobrowski A, Kalcher K (2002) Talanta 58

References 1. Bakkali K., Martos N.R., Souhail B., Ballesteros E.: Characterization of trace metals in vegetables by graphite furnace atomic absorption spectrometry after closed vessel microwave digestion. Food Chem 2009, 116 , 590-594. 2. Bagchi D., Stohs S.J., Downs B.W., Bagchi M., Preuss H.G.: Cytotoxicity and oxidative mechanisms of different forms of chromium. Toxicology 2002, 180, 5-22. 3. Bermejo-Barrera P., Barciela-Alonso M.C., Pérez- Fernández B., Bermejo-Barrera A.: Direct speciation analysis of Cr(VI) by electrothermal atomic absorption

and copper in wine by differential pulse anodic stripping voltammetry. Fresenius Z Anal Chem 1979;294:391-7. Ajtony Z, Szoboszlai N, Suskó EK, Mezei P, György K, Bencs L. Direct sample introduction of wines in graphite furnace atomic absorption spectrometry for the simultaneous determination of arsenic, cadmium, copper and lead content. Talanta 2008;76:627-34. Dessuy MB, Vale MGR, Souza AS, Ferreira SLC, Welz B, Katskov DA. Method development for the determination of lead in wine using electrothermal atomic absorption spectrometry comparing platform and filter

, ON, Canada, 1998. 21. Sneddon, J.: Electrostatic precipitation atomie ab-sorption spectrometry; Appl. Spectrosc. 44 (1990) 1562-1565. 22. Sneddon,J.:Directandnear-real-timedetermination of lead, manganese and mercury in laboratory air by electrostatic precipitation-atomic absorption spectrometry; Anal. Chim. Acta 245 (1991) 203-206. 23. Brindle, I.D. and S. Zheng: A comparison of gas-liquid separators for the determination of mercury by cold-vapour sequential injection atomie absorption spectrometry; Spectrochim. Acta 5 IB (1996) 1777-1780. 24. Lippo, H, T

[1] S.N. Willie: “First order speciation of As using flow injection hydride generation atomic absorption spectrometry with in-situ trapping of the arsine in a graphite furnace”, Spectrochim. Acta B, Vol. 51, (1996), pp. 1781–1790. [2] S.J. Hill, T.A. Arowolo, O.T. Butler, S.R.N. Chenery, J.M. Cook, M.S. Cresser and D.L. Miles: “Atomic spectrometry update. Environmental analysis”, J. Anal. At. Spectrom. Vol. 17, (2002), pp. 284–317. [3] A. Taylor, S. Branch, D. Halls, M. Patriarca

Radiochim. Acta 97, 117–122 (2009) / DOI 10.1524/ract.2009.1578 © by Oldenbourg Wissenschaftsverlag, München Assessment of elemental pollution in soil of Islamabad city using instrumental neutron activation analysis and atomic absorption spectrometry techniques By M. Daud1, M. Wasim1, N. Khalid1, J. H. Zaidi1,∗ and J. Iqbal2 1 Chemistry Division, Pakistan Institute of Nuclear Science and Technology, P.O. Nilore, Islamabad, Pakistan 2 Institute of Chemistry, University of the Punjab, Lahore, Pakistan (Received May 26, 2008; accepted in revised form August 12, 2008