• Application Note

Acidic Veterinary Drugs in Horse Urine by LC-MS

Acidic Veterinary Drugs in Horse Urine by LC-MS
  • Waters Corporation
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This is an Application Brief and does not contain a detailed Experimental section.

Abstract

This application brief demonstrates the analysis of acidic veterinary drugs in horse urine by LC-MS.

Introduction

The compounds analyzed in this study are: 

  1. Ketoprofen 
  2. Naproxen 
  3. Phenylbutazone 
  4. Ibuprofen 
  5. Meclofenamic acid 

Experimental

LC-MS Method

Column:

XTerra MS C18, 2.1 x 100 mm, 3.5 µm

Part number:

186000404

Mobile phase A:

20 mM ammonium acetate (pH 4)

Mobile phase B:

Methanol

Gradient:

50% A initial, to 90% methanol in 10 min

Flow rate:

175 mL/min

Injection volume:

10 µL

Instrument:

Waters Alliance Separations Module with 996 PDA
Oasis Method

Results and Discussion

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WA31764.33, June 2003

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