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Öğe Chemical analysis of geothermal water of Çermik, Turkey(2003) Akba O.; Baysal A.; Hamamci C.; Merdivan M.; Gumgum B.Geothermal water of Çermik, which is located in Southeast Anatolia - Turkey, is a Na-Cl-HCO3 type containing also sulfide and iodide. The temperature, pH and flow rate of the geothermal water are 51°C, 7.6 and 21 L s-1, respectively. Its physical and chemical characterization in detail was done using standard methods. The trace elements Al, Ba, Co, Cr, Cu, Fe, Mn, Ni, Pb, Sr and Zn were analyzed directly using inductively coupled plasma-atomic emission spectrometry due to very low detection limits and the good reproducibility of this analytical method.Öğe Heavy metal levels in some macrofungi(2003) Yilmaz F.; Işilo?lu M.; Merdivan M.This study was done on edible, inedible and poisonous macrofungi collected around the Balikesir-Manisa highway from two different areas (roadside and background area) in 1998-1999. Cu, Zn, Fe, Mn, Co, Cd, Ni and Pb contents were determined by atomic absorption spectrophotometer in 256 samples belonging to 24 macrofungi species. The habitat, edibility and distribution of the taxa in the families were listed. According to mean dry weight (DW), Mn, Co and Cd contents were high in Omphalotus olearius (DC.: Fr.) Fr., which is a poisonous macrofungus species compared to the others; however, Fe levels were also extremely high. The lowest Cu, Mn and Fe contents were found in Laetiporus sulphureus (Bull.: Fr.) Murr., which is an edible macrofungus. The highest Pb and Zn contents were determined in Lycoperdon perlatum Pers. as 6.5 mg/kg and 274 mg/kg respectively. The contents of Ni and Cd seemed to be lower the near road.Öğe Macro and micro element contents in fruiting bodies of wild edible mushrooms from Muğla in Southwest Anatolia, Turkey(Chemical Publishing Co., 2006) Erdoğan S.; Yilmaz-Ersela F.; Merdivan M.The macro (K, Na, Mg, Ca) and micro (Fe, Zn, Cu, Mn, Cd, Co, Ni) element contents in 8 different wild edible mushroom species were studied in Southwest Anatolia, Turkey. The study investigated the differences in metal accumulation in relation to species. The mean concentrations of metals in the individual species did not vary to a large extent. The tricholomataceae species in this study had higher protein values than the others. The highest mean concentration of macro elements was found for K (135 g/kg), followed by Mg (1.23 g/kg), Na (0.58 g/kg) and Ca (0.33 g/kg) in Tricholoma terreum (Schff.: Fr.) Kummer. The mean concentrations of micro elements for all species were in the following order: Fe > Zn > Cu > Mn > Ni > Cd. Pb and Co were not detected in the studied species. The highest amount of micro elements was determined for Cd (8.83 mg/kg), Fe (268 mg/kg) and Zn (100 mg/kg) in T. terreum and for Cu (53.1 mg/kg) and Mn (23.5 mg/kg) in Clitocybe alexandri (Gill.) Konr.Öğe Solvent extraction of platinum group metals with N,N-diethyl-N'-benzoylthiourea(2000) Merdivan M.; Aygun R.S.; Külcü N.[No abstract available]
