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@article{567166,
author = {Svobodová, Ivona and Lubal, Přemysl and Hermann, Petr and Kotek, Jan and Havel, Josef},
article_location = {Dordrecht},
article_number = {1-2},
keywords = {cyclam derivative; macrocyclic ligand; 1;4;8;11-tetraazacyclotetradecane-1;8-bis(methylphosphonic acid); microscale copper(II) determination; phosphonate complexes; UV/VIS spectrophotometric end-point detection},
language = {eng},
issn = {0923-0750},
journal = {Journal of Inclusion Phenomena and Macrocyclic Chemistry},
title = {Application of Dipon, (1,4,8,11-tetraazacyclotetradecane-4,11-bis(methylphosphonic acid) as selective complexing agent for determination of copper(II)},
volume = {49},
year = {2004}
}
TY - JOUR
ID - 567166
AU - Svobodová, Ivona - Lubal, Přemysl - Hermann, Petr - Kotek, Jan - Havel, Josef
PY - 2004
TI - Application of Dipon, (1,4,8,11-tetraazacyclotetradecane-4,11-bis(methylphosphonic acid) as selective complexing agent for determination of copper(II)
JF - Journal of Inclusion Phenomena and Macrocyclic Chemistry
VL - 49
IS - 1-2
SP - 11-15
EP - 11-15
PB - Kluwer
SN - 09230750
KW - cyclam derivative
KW - macrocyclic ligand
KW - 1;4;8;11-tetraazacyclotetradecane-1;8-bis(methylphosphonic acid)
KW - microscale copper(II) determination
KW - phosphonate complexes
KW - UV/VIS spectrophotometric end-point detection
N2 - A new macrocyclic ligand, 1,4,8,11-tetraazacyclotetradecane-1,8-bis(methylphosphonic acid) (dipon), is selective complexing agent for copper(II) over other transition metal ions. The ligand was tested for analytical applications of copper( II) determination. Spectrophotometric determination under optimal experimental conditions (-log [H+] = 5.5, c(L) approximate to 5 x 10(-4) mol L-1, lambda 310 nm) is valid in dynamic range (5-200) x 10(-6) mol L-1 with detection limit 2.2 x 10(-6) mol L-1, i.e. 0.14 mug ml(-1). Volumetric determination of copper(II) with standardized dipon solution was used for copper(II) determination at micromolar concentration level without any necessity to sequester interfering metal ions. A sharp end point of titration was detected by UV/VIS spectrophotometry. Both methods were tested on artificial and real samples (spiked mineral water, alloys) and gave satisfactory results without any systematic error. The advantage of both methods is their simplicity, and rapidity.
ER -
SVOBODOVÁ, Ivona, Přemysl LUBAL, Petr HERMANN, Jan KOTEK a Josef HAVEL. Application of Dipon, (1,4,8,11-tetraazacyclotetradecane-4,11-bis(methylphosphonic acid) as selective complexing agent for determination of copper(II). \textit{Journal of Inclusion Phenomena and Macrocyclic Chemistry}. Dordrecht: Kluwer, roč.~49, 1-2, s.~11-15. ISSN~0923-0750. 2004.
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