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Diduco AB 2016-2019

Diduco AB

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90736 Umeå

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Dietary supplements analysis

Determination of counteranions in capsules  

Analysis of chloride and sulfate in glucosamine capsules and of tartrate in carnitine capsules using a generic method for counterions and Xenoic® XAMS suppressor to reduce background and noise.

Ion chromatographic analysis of glucosamine dietary supplement on a Metrosep A Supp 10 column (250x4 mm) using an eluent containing 12 mM Na₂CO₃ and 24 mM NaHCO₃ in water pumped at 1.0 mL/min at 24 °C. Background reduced to ~38 µS/cm by XAMS suppressor with ASUREX-A200 automatic regenerator. Eluent pumping and conductivity detection by Metrohm 761 Compact IC. Injection of 20 µL of glucosamine capsules dissolved and diluted in mobile phase 1:10000 and filtered (0.45 µm), giving signals up to 10.3 µS/cm.

Ion chromatographic analysis of carnitine dietary supplement on a Metrosep A Supp 10 column (250x4 mm) using an eluent containing 12 mM Na₂CO₃ and 24 mM NaHCO₃ in water pumped at 1.0 mL/min at 24 °C. Background reduced to ~38 µS/cm by XAMS suppressor with ASUREX-A200 automatic regenerator. Eluent pumping and conductivity detection by Metrohm 761 Compact IC. Injection of 20 µL of carnitine capsules dissolved and diluted in mobile phase 1:10000 and filtered (0.45 µm), giving signals up to 3.6 µS/cm.