Abstract
Synthetic chelating agents have shown increasing demand
for many industrial and laboratory scale cleaning and
finishing processes. These ligands have been used in a
variety of metal speciation applications by complexation
of metals with the chelating compounds. Especially
phosphonate chelating agents are important compounds in
different kind of industrial, environmental, biological,
geological and medicine applications. Besides of the
uptake of metals the interests in the use of phosphonate
compounds are their stability under many industrial and
environmental conditions and ability to buffer free metal
ion activities in various media. For the investigation of
the above mentioned samples and their degradation
products capillary electrophoresis has been found a
possible alternative due to its efficiency and
sensitivity.
In this study, we have developed a capillary
electrophoresis method for monitoring of decomposition of
three commercial complexones such as CDTA, DTPMP and HEDP
in elevated temperature of the thermostated bath.
Sampling from the bath was performed using certain time
interval and the remaining of each compound was measured
from the peak area of the electropherogram. In additon,
detection limit for each chelating agent was determined
without thermal stimulus in the aqueous media.
Original language | English |
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Title of host publication | ITP 2002, 13th International Symposium on Capillary Electroseparation Techniques |
Subtitle of host publication | program and book of abstracts |
Place of Publication | Helsinki |
Publisher | University of Helsinki |
Publication status | Published - 2002 |
MoE publication type | B3 Non-refereed article in conference proceedings |
Event | 13th International Symposium on Capillary Electroseparation Techniques - Helsinki, Finland Duration: 1 Sept 2002 → 4 Sept 2002 |
Conference
Conference | 13th International Symposium on Capillary Electroseparation Techniques |
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Country/Territory | Finland |
City | Helsinki |
Period | 1/09/02 → 4/09/02 |
Keywords
- capillary electrophoresis
- chelating agent
- HEDP
- DTPMP
- CDTA