한국환경보건학회지 (Journal of Environmental Health Sciences)
- 제21권3호
- /
- Pages.96-101
- /
- 1995
- /
- 1738-4087(pISSN)
- /
- 2233-8616(eISSN)
역추출과 PAR법에 의한 수질중 미량 수은의 비색정량에 관한 연구
Colorimetric Determination of Trace Mercury(II) in Water by Back Extraction and PAR
초록
A selective and highly sensitive spectrophotometric measurements have been developed for the determination of trace mercury(II) with thiosulfate and PAR. Hg(II)-thiosulfate complex was extracted into high molecular alkylamine such as quaternary ammonium salt and back extracted into 1 M-HCl solution. The Hg(II)-PAR complex has maximum absorbance at 499 nm and obeys Beer's law in the range of 0.04~1.0 $\mu g/mL$ of mercury(II). The molar absorptivity and Sandell's sensitivity are $6.27\times 10^4 L.mole^{-1} cm^{-1}$ and $3.2\times 10^{-3}g/cm^2$ respectively.
키워드