• Application Note

Ephedra Alkaloids

Ephedra Alkaloids
  • Waters Corporation
Download PDF Download PDF

This is an Application Brief and does not contain a detailed Experimental section.

Abstract

This application brief demonstrates analysis of ephedra alkaloids.

Introduction

The compounds used in this study are –

  1. Norephedrine
  2. Norpseudoephedrine
  3. Ephedrine
  4. Pseudoephedrine
  5. Methylephedrine
  6. Methylpseudoephedrine

Experimental

Conditions

Column:

Xterra Phenyl, 2.1 x 150 mm, 3.5 μm

Part number:

186001181

Mobile phase A:

10 mM NH4HCO3, pH 9.5

Mobile phase B:

ACN

Flow rate:

0.23 mL/min

Isocratic mobile phase composition:

90% A; 10% B

Injection volume:

5 μL

Temperature:

40 °C

Detection:

UV @ 254 nm

Instrument:

Alliance 2695, 2996 PDA

Results and Discussion

Featured Products

WA20738.048, June 2002

Back To Top Back To Top