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Determination of some heavy metal cations in molten snow by transient isotachophoresis/capillary zone electrophoresis
Author(s) -
Petr Jan,
Gerstmann Silke,
Frank Hartmut
Publication year - 2006
Publication title -
journal of separation science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.72
H-Index - 102
eISSN - 1615-9314
pISSN - 1615-9306
DOI - 10.1002/jssc.200600022
Subject(s) - isotachophoresis , capillary electrophoresis , chemistry , chromatography , capillary action , transient (computer programming) , snow , metal , electrophoresis , analytical chemistry (journal) , electrolyte , materials science , geology , electrode , geomorphology , composite material , organic chemistry , computer science , operating system
Online combination of transient ITP and CZE is employed for the determination of Cd(II), Pb(II), Cu(II), Ni(II), and Zn(II). Acetic acid is used for creating the transient isotachophoretic state. α‐Hydroxyisobutyric acid and 4‐aminopyridine are used as BGEs for the separation and indirect UV detection. At optimum conditions, the method allows to determine the metals at levels of 40–120 μg/L, about 50 times more sensitive than conventional CZE. In combination with a 20‐fold evaporative concentration, the method is suitable for environmental monitoring of the heavy metals in snow samples.