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], [ 11 ], and precipitation [ 12 ], [ 13 ]. Although solvent extraction of uranium from phosphoric acid using synergistic mixture of D2HEPA and TOPO in kerosene has been reported to be a successful process for large industrial recovery of uranium [ 14 ], [ 15 ], this process is being applied with many disadvantages due to the heavy usage of organic solvents and diluents. Thus, development of high efficient and low cost material for the uranium recovery has attracted much attention. As a promising separation technique, solid phase extraction (SPE) considered as one of

Radiochim. Acta 93, 579–583 (2005) © by Oldenbourg Wissenschaftsverlag, München A no-carrier-added 72Se/72As radionuclide generator based on solid phase extraction By M. Jennewein1, S. M. Qaim2, P. V. Kulkarni3, R. P. Mason3, A. Hermanne4 and F. Rösch1,∗ 1 Institute of Nuclear Chemistry, Johannes Gutenberg-University of Mainz, Fritz-Strassmann-Weg 2, 55128 Mainz, Germany 2 Institut für Nuklearchemie, Forschungszentrum Jülich, Leo-Brandt-Strasse, 52425 Jülich, Germany 3 Department of Radiology, University of Texas Southwestern Medical Center at Dallas, 5323 Harry

Clin Chem Lab Med 2008;46(12):1747–1751 2008 by Walter de Gruyter • Berlin • New York. DOI 10.1515/CCLM.2008.338 2008/297 Article in press - uncorrected proof Development and validation of a high-performance liquid chromatography assay for posaconazole utilizing solid-phase extraction Dominic Störzinger1,*, Stefanie Swoboda1, Christoph Lichtenstern2, Carsten Müller3, Markus A. Weigand2 and Torsten Hoppe-Tichy1 1 Pharmacy Department, University Hospital of Heidelberg, Heidelberg, Germany 2 Department of Anaesthesiology, University Hospital of Heidelberg

Radiochim. Acta 2014; 102(11): 1017–1024 Mostafa Mohamed Hamed, Mohamed Fathy Attallah*, and Sayed Sayed Metwally Simultaneous solid phase extraction of cobalt, strontium and cesium from liquid radioactive waste using microcrystalline naphthalene Abstract:Most of the procedures developed for the extrac- tion of cobalt, strontium and cesiumby solid phase extrac- tion do not employ simultaneous extraction of them. In this study, rapid simultaneous removal of Co2+, Sr2+ and Cs + on microcrystalline naphthalene as solid-phase ex- tractantwas investigated. These ions

References [1] Bojko B., Cudjoe E., Gómez-Ríos G.A., Gorynski K., Jiang R., Reyes-Garcés N., Risticevic S., Silva É.A.S., Togunde O., Vuckovic D., Pawliszyn J., SPME – Quo vadis?, Anal. Chim. Acta, 2012, 750, 132-151. [2] Castro R., Natera R., Durán E., García-Barroso C., Application of solid phase extraction techniques to analyse volatile compounds in wines and other enological products, Eur. Food. Res. Technol., 2008, 228, 1-18. [3] Weldegergis B.T., Croucha A.M., Górecki T., de Villiers A., Solid phase extraction in combination with comprehensive two

[1] J.L. Luque-Garcia, M.D. Luque de Castro, Trends Anal. Chem. 23, 102 (2004) http://dx.doi.org/10.1016/S0165-9936(04)00302-4 [2] C.W. Huck, G.K. Bonn, J. Chromatogr. A, 885, 51 (2000) http://dx.doi.org/10.1016/S0021-9673(00)00333-2 [3] M.C. Hennion, J. Chromatogr. A, 856, 3 (1999) http://dx.doi.org/10.1016/S0021-9673(99)00832-8 [4] N.J.K. Simpson (Ed.), Solid-phase extraction: principles, techniques, and applications (Marcel Dekker Inc., New York, 2000) [5] C.F. Poole, Trends Anal. Chem. 22, 362 (2003) http://dx.doi.org/10.1016/S0165-9936(03)00605-8 [6] E

six fluoroquinolones in serum samples by selective molecularly imprinted matrix solid-phase dispersion, Anal. Chim. Acta, 2008, 625, 154-159. [16] Ceolin, G., Navarro-Villoslada, F., Moreno-Bondi, M.C., Horvai, G., Horváth, V., Accelerated development procedure for molecularly imprinted polymers using membrane filterplates, J. Comb. Chem., 2009, 11, 645-652. [17] Renkecz, T., Ceolina, G., Horváth, V., Selective solid phase extraction of propranolol on multiwell membrane filter plates modified with molecularly imprinted polymer, Analyst, 2011, 136, 2175-2182. [18

Clin Chem Lab Med 2012;50(3):521–524 © 2012 by Walter de Gruyter • Berlin • Boston. DOI 10.1515/CCLM.2011.802 Short Communication An on-line solid phase extraction procedure for the routine quantifi cation of caspofungin by liquid chromatography-tandem mass spectrometry Fabian Kirchhoff 1, *, Barbara Maier 1 , Christina Rieger 2 , Helmut Ostermann 2 , Ute Sp ö hrer 3 and Michael Vogeser 1 1 Institute of Clinical Chemistry , Hospital of the University of Munich, Munich , Germany 2 Department of Internal Medicine III , Hospital of the

Clin Chem Lab Med 2011;49(11):1845–1848 2011 by Walter de Gruyter • Berlin • Boston. DOI 10.1515/CCLM.2011.663 2011/0074 Article in press - uncorrected proof High-throughput analysis of testosterone in serum samples by on-line solid phase extraction liquid chromatography- tandem mass spectrometry Kari Savolainen1,2,*, Raisa Kiimamaa1,2 and Toivo Halonen1,2 1 Department of Clinical Chemistry, University of Eastern Finland, Finland 2 Eastern Finland Laboratory Centre (ISLAB), Kuopio, Finland Abstract Background: Liquid chromatography tandem-mass spec- trometer (LC

Abstract

A new solid-phase extraction method has been developed for the selective extraction of Cu(II) in an aqueous system using freshly precipitated lead diethyldithiocarbamate (Pb(DDTC)2) as a reagent. The method is based on the quantitative replacement of Pb(II) ions in the solid Pb(DDTC)2 phase by Cu(II) ions present in aqueous phase. The obtained solid Cu(DDTC)2 phase was dissolved in chloroform and determined spectrophotometrically at 435 nm. Beer’s law was obeyed over the concentration range of 0.2–5 mg dm−3. The molar absorptivity and the Sandell’s sensitivity coefficients of the solutions were 1.0689 × 104 dm3 mol−1 cm−1 and 0.0060 µg cm−2, respectively. The optimum conditions for each parameter were experimentally determined and possible interferences of various salts were also studied. The method has been validated and applied to determine Cu(II) in various alloys and water samples.