INDIRECT PHOTOMETRIC DETECTION OF INORGANIC ANIONS USING ANTHRAQUINONE - DISULFONATE AS VISUALIZATION AGENT

Zein, Rahmiana and Munaf, Edison and Takeuchi, Toyohide and Miwa, Tomoo (2010) INDIRECT PHOTOMETRIC DETECTION OF INORGANIC ANIONS USING ANTHRAQUINONE - DISULFONATE AS VISUALIZATION AGENT. Jurnal Kimia Andalas, 4 (2). pp. 99-103. ISSN 0853-8018

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Abstract

Signal enhancement of inorganic anions has been achieved by indirect photometric detection with anthraquinone-disulfonate as visualization agent in liquid chromatography. The separation was conducted using a 50 x 4.6 mm I.D. separation column packed with LIC-10-SA 1 and detected at 264 nm using a UV-spectrophotometer detector. The calibration curve for analytes tested were linear up to the concentration of 10 mM. The present method improved the sensitivity of the analytes tested by a factor of 10-20. Key words: Anthraquinone-disulfonate, inorgonic anions, indirect detection, ion chromatograpy.

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