The determination of periodate by infrared spectroscopy |
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| Authors: | M Al-Kayssi RJ Magee |
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| Institution: | Department of Chemistry, The Queen''s University, Belfast, Northern IrelandGreat Britain |
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| Abstract: | An infrared method has been developed to determine periodate on the microgram scale. Periodate is precipitated in slightly acid solution with tetraphenylarsonium chloride and in presence of perchlorate as carrier. The precipitate is mixed with powdered potassium bromide and pressed into a disc. The base-line absorbance of the periodate band at 11.68 μ is calculated in order to find the concentration of periodate from a calibration curve. No interference is caused by perchlorate, permanganate, perrhenate, chlorate, iodate or bromate. |
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