Molybdenum, Molybdate
Molybdenum, Molybdate
Molybdenum_PP_Low_TER_Eng_Ody.fm Page 5 of 6
Method Performance
Precision
Standard: 2.00 mg/L Mo
6+
See Section 3.4.3 Precision on page 44 for more information, or if the standard
concentration did not fall within the specified range.
Sensitivity
See Section 3.4.5 Sensitivity on page 44 for more information.
Summary of Method
The ternary complex method for molybdenum determination is a method in
which molybdate molybdenum reacts with an indicator and sensitizing agent to
give a stable blue complex. Test results are measured at 610 nm.
Required Reagents
Quantity Required
Description per test Unit Cat. No.
Molybdenum Reagent Set for 20-mL sample (100 tests) ...........................................................................24494-00
Includes:
(1) Molybdenum 1 Reagent (LR) Molybdate Powder Pillows ....1 pillow........... 100/pkg.............23524-49
(1) Molybdenum 2 Reagent Solution ..............................................0.5 mL ............. 50 mL MDB.......23525-12
Required Apparatus
Cylinder, graduated mixing, 25-mL.......................................................1 ....................... each......................1896-40
Sample Cells, 10-mL, w/cap...................................................................2 ....................... 6/pkg.................24276-06
Required Standards
Molybdenum Standard Solution, 10-mg/L Mo
6+
......................................................... 100 mL...............14187-42
Molybdenum Standard Solution, 10-mL Voluette
®
ampule, 500-mg/L Mo
6+
.......... 16/pkg...............14265-10
Water, deionized ................................................................................................................. 4 liters ....................272-56
Program 95% Confidence Limits of Distribution
315 1.93–2.07 mg/L Mo
6+
Portion of Curve ∆Abs ∆Concentration
Entire range 0.010 0.02 mg/L Mo
6+
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