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@article{566735, author = {Svobodová, Ivona and Lubal, Přemysl and Hermann, P. and Kotek, J. and Havel, Josef}, article_location = {Wien}, article_number = {148}, keywords = {copper(II) kinetic determination; macrocyclic ligand; phosphonate ligand; UV/VIS spectrophotometry; cyclam derivative}, language = {eng}, issn = {1436-5073}, journal = {Microchimica Acta}, title = {Selective Kinetic Determination of Cu2+ with Tetraazamacrocyclic Bis(methylphosphonate) Ligand (Dipon)}, volume = {148}, year = {2004} }
TY - JOUR ID - 566735 AU - Svobodová, Ivona - Lubal, Přemysl - Hermann, P. - Kotek, J. - Havel, Josef PY - 2004 TI - Selective Kinetic Determination of Cu2+ with Tetraazamacrocyclic Bis(methylphosphonate) Ligand (Dipon) JF - Microchimica Acta VL - 148 IS - 148 SP - 21-26 EP - 21-26 PB - Springer-Verlag SN - 14365073 KW - copper(II) kinetic determination KW - macrocyclic ligand KW - phosphonate ligand KW - UV/VIS spectrophotometry KW - cyclam derivative N2 - A new macrocyclic ligand, 1,4,8,11-tetraazacyclotetradecane-1,8-bis(methylphosphonic acid) (refered to as dipon) exhibits high thermodynamic and kinetic selectivity for Cu2+ compared to other transition metal ions. The initial-rate method (lambda = 310 nm, pH = 3.75, C-L approximate to 4.6 x 10(-3) mol L-1) was chosen as an optimal experimental approach in order to achieve maximum sensitivity of determination. The dynamic range of the method is (5-200) x 10(-6) mol L-1, and the detection limit is 2.5 x 10(-6) mol L-1. A standard addition procedure was applied to the kinetic determination of Cu2+ to eliminate the effect of interfering ions (e.g. Zn2+, Ca2+, Mg2+, Cd2+, Pb2+, Mn2+, Co2+, Ni2+, HCO3-, Cl-, SO42-, etc.). The method was tested on artificial and real samples (alloys, pure and spiked mineral water) and gave satisfactory results which are in agreement with the values for some certified materials. The advantage of the proposed method is rapidity, simplicity and robustness. ER -
SVOBODOVÁ, Ivona, Přemysl LUBAL, P. HERMANN, J. KOTEK a Josef HAVEL. Selective Kinetic Determination of Cu2+ with Tetraazamacrocyclic Bis(methylphosphonate) Ligand (Dipon). \textit{Microchimica Acta}. Wien: Springer-Verlag, 2004, roč.~148, č.~148, s.~21-26. ISSN~1436-5073.
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