DR/2400
Iron, Ferrous
IronFer_AVPP_Other_PHE_Eng_Ody.fm Page 1 of 4
• Analyze samples as soon as possible to prevent air oxidation of ferrous iron to ferric iron, which is not determined.
• For more accurate results, determine a reagent blank value for each new lot of reagent. Follow the procedure using deionized
water in place of the sample. Subtract the reagent blank value from the final results or perform a reagent blank adjust
. See the
instrument manual for more information on Running a Reagent Blank.
• If ferrous iron is present, an orange color will form after adding the reagent.
Iron, Ferrous
Method 8146
1, 10 Phenanthroline Method*
*Adapted from Standard Methods for the Examination of Water and Wastewater, 15th ed. 201 (1980)
Powder Pillows or AccuVac
®
Ampuls
(0.02 to 3.00 mg/L)
Scope and Application: For water, wastewater, and seawater
1. Touch
Hach Programs.
Select program
255 Iron, Ferrous.
Touch
Start.
2. Fill a clean, round
sample cell with 25 mL
of sample.
3. Add the contents of
one Ferrous Iron Reagent
Powder Pillow to the
sample cell (the prepared
sample). Swirl to mix.
4. Touch the timer icon.
Touch
OK.
A three-minute reaction
period will begin.
Tips and Techniques
Powder Pillows Method 8146
Hach Programs
10 mL
20 mL
25 mL
10 mL
20 mL
25 mL
To Next Page
Loading...
