HILIC Retention of 1,5-Naphthalenedisulfonic Acid on Obelisc N Mixed-Mode HILIC Columns

https://sielc.com/Application-HILIC-Retention-of-1-5-Naphthalenedisulfonic-Acid-on-Obelisc-N-Mixed-Mode-HILIC-Columns
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Chromatogram

Description

Naphthalenedisulfonic acid is retained by anion-exchange mechanism on Obelisc N mixed-mode HILIC column. Retention time is controlled by amount of ion in the mobile phase. Method demonstrates very good peak shape and controllable retention. This mixed-mode approach can be used for quantitation of various sulfonic acid in different matrices. UV, ELSD or LC/MS can be used for quantitation.

Method Parameters

Mobile PhaseMeCN/H2O
BufferAmFm pH 3.0
Flow Rate1.0 ml/min
DetectionUV, 270 nm
Class of CompoundsAcid
Analyzing Compounds1,5-Naphthalenedisulfonic Acid

HPLC Column Used

Obelisc N , 4.6×150 mm, 5 µm, 100A