Selective and Simultaneous Determination of Phosphate and Silicate Ions in Leaching Process Waters for Ceramics Glaze Raw Materials of Narutal Origin by Ion-Exclusion Chromatography Coupled with UV-detection after Postcolumn Derivatization
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Accession number;06A0028775
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| Title;Selective and Simultaneous Determination of Phosphate and Silicate Ions in Leaching Process Waters for Ceramics Glaze Raw Materials of Narutal Origin by Ion-Exclusion Chromatography Coupled with UV-detection after Postcolumn Derivatization |
| Author;
IKEDO MIKARU
(Chubu Univ., Kasugai, Jpn)
MORI MASANOBU
(Gunma Univ., Kiryu, Jpn)
KURACHI KAZUMASA
(Gifu Prefectural Ceramics Res. Inst., Tajimi, Jpn)
HU WENZHI
(Hokkaido Univ., Sapporo, Jpn)
TANAKA KAZUHIKO
(Chubu Univ., Kasugai, Jpn)
TANAKA KAZUHIKO
(National Inst. Advanced Industrial Sci. And Technol. At Seto, Seto, Jpn)
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Journal Title;Anal Sci
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Journal Code:G0673B
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ISSN:0910-6340
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VOL.22;NO.1;PAGE.117-121(2006)
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| Figure&Table&Reference;FIG.9, TBL.1, REF.17 |
| Pub. Country;Japan |
| Language;English |
| Abstract;The selective and simultaneous ion-exclusion chromatography (IEC) with UV-detection on a weakly acidic cation-exchange resin column in the H'+'-form (TSKgel Super IC-A/C) was developed and applied for the simultaneous determination of phosphate and silicate ions as the water quality parameters required for optimizing the water-leaching process for ceramics glaze raw materials of natural origin including feldspar, woods-ash, and straw-ash. Phosphate and silicate ions in these water-leaching process water samples were separated selectively from the coexisting anions such as sulfate, chloride, nitrate and carbonate ions, based on the ion-exclusion separation mechanism. They were detected selectively and simultaneously by a postcolumn derivatization with molybdenum-yellow using the UV-detector. Under the optimized separation and detection conditions (eluent, 0-1 mM sulfuric acid; reactant, 10 mM sodium molybdate-25 mM sulfuric acid; detector, UV at 370 nm; temperature, 45.DEG.C.), the linearity of calibration was in the range 0.1-10 ppm for both phosphate and silicate ions, and the detection limits at S/N = 3 were 2.58 ppb for silicate ions and 4.75 ppb for phosphate ions. The effectiveness of this method was demonstrated in practical applications to the water-leaching process for some ceramics glaze raw materials. (author abst.) |
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