Determination of micro amounts of mercury(I) iodide in mercury(II) iodide by Raman spectrometry

H. Hermon; M. Roth; M. Schieber; J. Shamir

doi:10.1016/0003-2670(91)87170-c

Determination of micro amounts of mercury(I) iodide in mercury(II) iodide by Raman spectrometry

H. Hermon^*, M. Roth, M. Schieber, J. Shamir

^*Corresponding author for this work

The Institute of Applied Physics

Research output: Contribution to journal › Article › peer-review

Abstract

A sensitive method for the determination of excess of mercury in high-purity mercury(II) iodide using Raman spectrometry was developed. The method allows the determination of micro amounts of mercury(I) iodide present in mercury(II) iodide with a sensitivity limit of 10 μmol mol^-1. Samples with concentrations in the range 18-7200 μmol mol^-1 were analysed and the results were used to construct a calibration graph. The analysis is based on comparison of the relative intensities of the Raman lines at 114 cm^-1 of Hg₂I₂ and that of 140 cm^-1 of β-HgI₂ above 130°C. The Raman spectrometric method is at least ten times more sensitive than other methods and seems to be the best technique available for stoichiometric studies of HgI₂.

Original language	English
Pages (from-to)	155-159
Number of pages	5
Journal	Analytica Chimica Acta
Volume	253
Issue number	2-3
DOIs	https://doi.org/10.1016/0003-2670(91)87170-c
State	Published - 8 Nov 1991

Keywords

Mercury
Mercury iodide
Raman spectrometry

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10.1016/0003-2670(91)87170-c

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title = "Determination of micro amounts of mercury(I) iodide in mercury(II) iodide by Raman spectrometry",

abstract = "A sensitive method for the determination of excess of mercury in high-purity mercury(II) iodide using Raman spectrometry was developed. The method allows the determination of micro amounts of mercury(I) iodide present in mercury(II) iodide with a sensitivity limit of 10 μmol mol-1. Samples with concentrations in the range 18-7200 μmol mol-1 were analysed and the results were used to construct a calibration graph. The analysis is based on comparison of the relative intensities of the Raman lines at 114 cm-1 of Hg2I2 and that of 140 cm-1 of β-HgI2 above 130°C. The Raman spectrometric method is at least ten times more sensitive than other methods and seems to be the best technique available for stoichiometric studies of HgI2.",

keywords = "Mercury, Mercury iodide, Raman spectrometry",

author = "H. Hermon and M. Roth and M. Schieber and J. Shamir",

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T1 - Determination of micro amounts of mercury(I) iodide in mercury(II) iodide by Raman spectrometry

AU - Hermon, H.

AU - Roth, M.

AU - Schieber, M.

AU - Shamir, J.

PY - 1991/11/8

Y1 - 1991/11/8

N2 - A sensitive method for the determination of excess of mercury in high-purity mercury(II) iodide using Raman spectrometry was developed. The method allows the determination of micro amounts of mercury(I) iodide present in mercury(II) iodide with a sensitivity limit of 10 μmol mol-1. Samples with concentrations in the range 18-7200 μmol mol-1 were analysed and the results were used to construct a calibration graph. The analysis is based on comparison of the relative intensities of the Raman lines at 114 cm-1 of Hg2I2 and that of 140 cm-1 of β-HgI2 above 130°C. The Raman spectrometric method is at least ten times more sensitive than other methods and seems to be the best technique available for stoichiometric studies of HgI2.

AB - A sensitive method for the determination of excess of mercury in high-purity mercury(II) iodide using Raman spectrometry was developed. The method allows the determination of micro amounts of mercury(I) iodide present in mercury(II) iodide with a sensitivity limit of 10 μmol mol-1. Samples with concentrations in the range 18-7200 μmol mol-1 were analysed and the results were used to construct a calibration graph. The analysis is based on comparison of the relative intensities of the Raman lines at 114 cm-1 of Hg2I2 and that of 140 cm-1 of β-HgI2 above 130°C. The Raman spectrometric method is at least ten times more sensitive than other methods and seems to be the best technique available for stoichiometric studies of HgI2.

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KW - Mercury iodide

KW - Raman spectrometry

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ER -

Determination of micro amounts of mercury(I) iodide in mercury(II) iodide by Raman spectrometry

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