 Three neutral polar compounds (urea, thiourea, and xanthine) are separated on a Primesep S HILIC cation-exchange column with LC/MS compatible mobile phase. The retention time is controlled by the amount of acetonitrile in the mobile phase.
Thiourea Urea Xanthine
ELSD/MS Detection

Urea and carbamide are separated by HILIC HPLC on Primesep N column. Both compounds can be monitored at low UV - 200 nm. Method can be used for determination and quantitation of hydrogen peroxide and urea in various matrices.
Hydrogen Peroxide Urea Carbamide
UV Detection
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