Hanna Instruments HI 83099 - Manual (Page 40)

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• Fill one graduated mixing cylinder up to the 25 mL
mark with the sample.
• Add the content of one packet of HI 93730A-0
molybdenum reagent, close the cylinder and invert it
several times until completely dissolved.
• Add the content of one packet of HI 93730B-0
molybdenum reagent to the cylinder, close and invert
it several times until completely dissolved.
• Add the content of one packet of HI 93730C-0
molybdenum reagent to the cylinder, close and shake
it vigorously.
• Fill an empty cuvette with 10 mL of sample up to the
mark and replace the cap.
• Insert the cuvette into the instrument.
Molybdenum
25 mL
10 mL
Molybdenum
MOLYBDENUM
SPECIFICATIONS
Range 0.0 to 40.0 mg/L
Resolution 0.1 mg/L
Accuracy ±0.3 mg/L ±5% of reading at 25 °C
Typical EMC ±0.1 mg/L
Deviation
Light Source
Tungsten lamp with narrow band interference filter @ 420 nm
Method Adaptation of the mercaptoacetic acid method. The reaction between molybdenum and
the reagents causes a yellow tint in the sample.
REQUIRED REAGENT
Code Description Quantity
HI 93730 A-0 Reagent A 1 packet
HI 93730 B-0 Reagent B 1 packet
HI 93730 C-0 Reagent C 1 packet
REAGENT SETS
HI 93730-01 Reagents for 100 tests
HI 93730-03 Reagents for 300 tests
For other accessories see page 132.
MEASUREMENT PROCEDURE
• Select the Molybdenum method using the procedure
described in the Method Selection section (see page 12).
• Fill the cuvette with 10 mL of unreacted sample (up to
the mark) and replace the cap.
• Place cuvette into the holder and close the lid.
• Press the Zero key. The display will show “-0.0-” when the meter is zeroed and ready for
measurement.
10 mL