Analysis of Oxyhalides in Artificial-Drinking Water According to EPA Method 300.1 (SI-37 4D)

The United States Environmental Protection Agency (EPA) Method 300.1 specifies methods for anion analysis in drinking water. EPA Method 300.1 has two parts. Part A: analysis of common ions and Part B: analysis of inorganic disinfection byproducts. Both uses the same analysis methods.

This application shows the example analysis of artificial-drinking water (standards spiked) following the EPA Method 300.1. With an IC SI-37 4D, an anion analysis column, analysis of common anions and inorganic disinfection byproducts (oxyhalides) is completed within 30 minutes. Moreover, it is capable of providing high sensitivity analysis of oxyhalides.

Please use this column with suppressor type ion chromatography system.

Sample : 200 μL (simulated drinking water containing EDA 50mg/L)

1. F^– 1.0 mg/L 2. ClO₂^– 5 µg/L 3. BrO₃^– 5 µg/L 4. Cl^– 50 mg/L 5. NO₂^– 5 µg/L 6. DCA^–, Dichloroacetate
1 mg/L 7. ClO₃^– 5 µg/L 8. Br^– 5 µg/L 9. NO₃^– 10 mg/L 10. CO₃^2- 25 mg/L 11. SO₄^2- 50 mg/L 12. PO₄^3- 0.20 mg/L

Columns      : Shodex IC SI-90G (4.6 mm I.D. x 10 mm) + SI-37 4D (4.0 mm I.D. x 150 mm)
Eluent       :  (Gradient) KOH aq.
                10 mM (0 to 21 min), 45 mM (21.01 to 30 min)
                (Eluent source : DionexTM EGC 500 KOH)
Flow rate    : 0.5 mL/min
Detector     : Suppressed conductivity
Column temp. : 30 °C