HPLC Separation of Phosphorous and Phosphoric Acids

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Chromatogram

Description

Application Notes: Phosphorus and phosphoric acid were separated on Obelisc N and Primesep D columns. On Obelisc N both acids retained by combination of HILIC and anion-exchange mechanisms. OnPrimesep D these inogranic acids are retained by anion-exchange mechanism. Both columns and methods can be used for analysis of hydrophilic organic and inorganic acids with multi-mode or single mode approach Application Columns: Primesep D, Obelisc N Application compounds: Phosphorous Acid, Phosphoric Acid Detection technique: UV, LC/MS, ELSD/CAD

Method Parameters

Mobile PhaseMeCN
BufferAmFm
Flow Rate1.0 ml/min
DetectionELSD
Class of CompoundsAcid, Fungicide,  Hydrophilic, Ionizable
Analyzing CompoundsPhosphorous Acid,  Phosphoric Acids

HPLC Column Used

Obelisc N, 4.6×50 mm, 5 µm, 100A