Abstract
In recent years, ion chromatography has been increasingly used for the separation and determination of heavy metals. In this study, the separation of Cu2+ Ni2+, Zn2+ and Pb2+ in airborne particuIate sampIes was achieved by the use a complexing eluent containing 20 mM oxalic acid and 20 mM citric acid adjusted to pH 3.6 with lithium hydroxide. Upon elution, the separated metal ions were reacted with PAR (4-(2-pyridylazo) resorcinol to form coloured complexes in a postcolumn reactor and detected by using a UV-Vis detector at 520 nm. Detection limits for a 25-ul sample solution were 2.2, 0.9, 6.6 and 1.8 ug/l for respectively metals. The technique was optimized and validated by analysing the NIST standard reference materials SRM 1648 Urban Particulate Matter and SRM 1633b Coal Fly Ash.
Metadata
Item Type: | Article |
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Creators: | Creators Email / ID Num. Abdullah @ Rafie, Mohd Zahari UNSPECIFIED Ahmad, Rahmalan UNSPECIFIED |
Subjects: | Q Science > QD Chemistry > Inorganic chemistry > Metals Q Science > QD Chemistry > Physical and theoretical chemistry > Acids and bases |
Divisions: | Universiti Teknologi MARA, Pahang > Jengka Campus |
Journal or Publication Title: | GADING Jurnal UiTM Cawangan Pahang |
UiTM Journal Collections: | Others > GADING |
ISSN: | 0128-5599 |
Volume: | 5 |
Number: | 3 |
Page Range: | pp. 33-39 |
Keywords: | Heavy metals, ion, chromatography |
Date: | 2000 |
URI: | https://ir.uitm.edu.my/id/eprint/62086 |