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Determination of mercury by radiochemical displacement method
Radioisotopes
|August 1, 1985
Summary
A new radiochemical method accurately determines mercury (Hg(II)) using zinc-65 displacement. This technique quanties microgram levels of mercury, offering a sensitive analytical approach.
Area of Science:
- Analytical Chemistry
- Radiochemistry
Background:
- Accurate determination of mercury (Hg(II)) is crucial for environmental and biological monitoring.
- Existing methods for micro-quantification of Hg(II) may have limitations in sensitivity or interference.
Purpose of the Study:
- To develop a novel radiochemical displacement method for the precise determination of microgram quantities of mercury (Hg(II)).
Main Methods:
- Utilized a radiochemical displacement reaction involving zinc-65 (65Zn).
- Displacement of 65Zn from the Zn-1-(2-pyridylazo-2-naphthol) complex by Hg(II) at pH 5 in borate buffers.
- Investigated and addressed interference from various metal ions.
Main Results:
- Successfully developed a method for determining micro amounts of Hg(II).
- The method is effective for quantifying mercury in the range of 10-80 micrograms.
- Identified interfering metal ions and established suppression methods.
Conclusions:
- The developed radiochemical displacement method offers a sensitive and reliable approach for Hg(II) determination.
- The technique is suitable for quantifying trace levels of mercury in samples.
- Interference mitigation strategies enhance the method's applicability.