Summary
Signal enhancement of inorganic anions have been achieved by indirect photometric detection with anthraquinone-disulfonate as visualization agent in liquid chromatography. The present detection system improved the sensitivity of the analytes, e.g., the detection limits at S/N=3 were 44, 72 and 140 nmol L−1 for chloride, nitrate and sulfate, respectively.
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Zein, R., Munaf, E., Takeuchi, T. et al. Signal enhancement of inorganic anions by indirect photometric detection with anthraquinone-disulfonate as visualization agent in liquid chromatography. Chromatographia 42, 591–592 (1996). https://doi.org/10.1007/BF02290297
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DOI: https://doi.org/10.1007/BF02290297