Hach DR2400 - Molybdenum, Molybdate; Powder Pillows or Accuvac

DR/2400
Molybdenum, Molybdate
Molybdenum_AVPP_High_MAA_Eng_Ody.fm Page 1 of 6
• 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.
• Filter turbid samples using filter paper (Cat. No. 1894-57) and a funnel (Cat. No. 1083-67).
• After all reagents have been added, the presence of molybdenum will cause a yellow color to form.
Molybdenum, Molybdate
Method 8036
Mercaptoacetic Acid Method*
*Adapted from Analytical Chemistry, 25(9) 1363 (1953)
Powder Pillows or AccuVac
®
Ampuls
HR (0.3 to 40.0 mg/L)
Scope and Application: For water and wastewater.
1. Touch
Hach Programs.
Select program
320 Molybdenum HR.
Touch
Start.
2. Fill a sample cell with
10-mL of sample.
3. Add the contents of
one MolyVer
®
1 Reagent
Powder Pillow. Swirl
to mix.
4. Add the contents of
one MolyVer 2 Reagent
Powder Pillow. Swirl
to mix.
Tips and Techniques
Powder Pillows Method 8036
Hach Programs