• Application Note

Naphthoic Acids in Groundwater

Naphthoic Acids in Groundwater
  • Waters Corporation
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This is an Application Brief and does not contain a detailed Experimental section.

Abstract

This application brief highlights the analysis of naphthoic acids in groundwater using Oasis MAX separation method.

Introduction

Naphthoic acids and naphthalenes in contaminated groundwater is detrmined in this application brief.

Experimental

LC Conditions

Column:

XTerra MS C18, 2.1 x 100 mm

Mobile phase A:

15 mM Ammonium formate

Mobile phase B:

ACN

Flow rate:

200 μL/min

Injection volume:

20 μL

Instrument:

Alliance 2695 Separations Module

Gradient

MS Conditions

Instrument:

Quattro Ultima

Ion source:

Negative Electrospray

Mode:

Multiple Reaction Monitoring (MRM)

Source temp.:

150 °C

Desolvation temp.:

450 °C

Cone gas:

50 L/Hr

Dosolvation gas:

500 L/Hr

Collision gas:

Argon

Results and Discussion

Matrix Spike Recoveries (from site water blank)

1- naphthoic acid: 69% (spike level 0.5μg/L)

2- naphthoic acid: 75% (spike level 0.5μg/L)

Naphthalene: 85% (spike level 100μg/L)

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WA31764.105, June 2003

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