Chemistry Reference
In-Depth Information
Chapter 13
Multianion analysis, application of high
performance and related chromatographic
techniques
This chapter discusses the applications to natural and treated water analysis of the
following techniques:
• high performance liquid chromatography;
• post-suppression ion exchange chromatography;
• ion pairing chromatography;
• suppressed ion chromatography;
• micelle exclusion chromatography;
• ion exclusion chromatography
13.1
High performance liquid chromatography
13.1.1
Non saline waters
13.1.1.1
Chloride and sulphate
Takeuchi
et al.
[1] described an indirect photometric detection method for anions in
micro high performance liquid chromatography. Micro anion exchange octadecylsilica
columns permanently coated with the hydrophobic cetyltrimethylammonium ion
(cetrimide) were used in the high performance liquid chromatography of chloride, nitrate
and sulphate contained in potable water. Indirect detection of analyte anions was
achieved with an ultraviolet detector. The breakthrough volume of the anion-exchange
column was measured with aqueous sodium salicylate (1mM). Retention times of analyte
anions in an artificial mixture were longer when aqueous sodium salicylate (1mM)
containing acetonitrile (5%) was used as the mobile phase.
13.1.1.2
Chloride, bromide, iodide, nitrate and thiocyanate
High performance liquid chromatography with a variable, wavelength ultraviolet detector
is a sensitive and precise method for the simultaneous measurement of chlorides,
bromides, iodides, nitrates and thiocyanates in non saline water samples. Stetzenbach and
Thompson [2] applied the
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