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A robustness study for a sensitive-stacking capillary electrophoresis method based on “acetonitrile-stacking” was carried out. Ten variables (pH, acetonitrile and triethanolamine in the buffer, injection time, injection pressure, acetonitrile and NaCl in the sample, capillary and tray temperature and separation voltage), whose levels were varied by 10% around the nominal level, were examined by a...
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