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.
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SiliaPrep SPE Cartridges, TMA Chloride (SAX) nec (SPE-R66530B)
SiliaPrep TMA Chloride (SAX) is a strong anion exchanger sorbent positively charged under all conditions used to extract acid molecules (pKa 3-5).