Halocetic Acids

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Matrix

Surface water

Analytes

Chloroacetic Acid, Bromoacetic Acid, Dichloroacetic Acid, Dalapon, Trichloroacetic Acid, Bromochloroacetic Acid, Bromodichloroacetic Acid, Dibromoacetic Acid, Chlorodibromoacetic Acid, Tribromoacetic Acid

SPE Cartridge

SiliaPrep SAX
500 mg / 6 mL
SPE-R66530B-06P

Sample Pretreatment before Loading

Add 0.5 mL of aqueous Ammonium Chloride to 50 mL of water sample. Adjust pH to 4.5 - 5.5 with Sulfuric Acid.

Conditionning

10 mL of Methanol

Equilibration

10 mL of Water

Loading

Pretreated sample

Washing

10 mL of Methanol

Elution

3 mL of 10 % Sulfuric Acid / Methanol

Further Treatment

Esterification and identification by GC/μECD.