I have five different columns from Dr.Maish:

1) ReproSil - XR 120 NH2

2) Reprosil 80 NH2

3) Reprospher 100 CN

4) Reprosil - Pur 120 NH2

5) Reprosil Saphir 100 NH2

4) Reprosil - Pur 120 NH2

Can I analyse the sugars on them?

I've tried ReproSil 80 NH2 with ACN:water (80:20) as a mobile phease and RI detector, hovewer lactose, glucose and galactose outcome as a one peak.

Have someone used some from mentioned columns for this purpose? Can someone recomend some mobile phase?

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