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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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