Hanna Instruments HI 83208-2008 - Manual (Page 21)

40 41 Manganese LR
• Add 0.2 mL of the HI 93748B-0 Alkaline-cyanide reagent
solution to each cuvette, replace the caps and shake gently.
• Add 1 mL of the HI 93748C-0 0.1% PAN indicator solution
to each cuvette, replace the caps and shake gently.
• Place the cuvette with the reacted deionized water
(blank) into the holder and close the lid.
• Press TIMER and the display will show the countdown prior
to zeroing. Alternatively wait for 2 minutes and then press
ZERO. The display will show "-0.0-" when the meter is
zeroed and ready for measurement.
• Insert the second cuvette with the reacted sample into
the instrument.
Manganese LR
MANGANESE LOW RANGE
SPECIFICATIONS
Range 0 to 300 µg/L
Resolution 1 µg/L
Accuracy ±2 µg/L ±3% of reading
Typical EMC ±1 µg/L
Deviation
Light Source
Tungsten lamp with narrow band interference filter @ 575 nm
Method Adaptation of the PAN Method. The reaction between manganese and the reagents
causes an orange tint in the sample.
REQUIRED REAGENT
Code Description Quantity
HI 93748A-0 Ascorbic acid 2 packets
HI 93748B-0 Alkaline-cyanide sol. 0.40 mL
HI 93748C-0 0.1% PAN indicator 2 mL
HI 93703-51 Dispersing Agent 4-6 drops (only when necessary, see note)
REAGENT SETS
HI 93748-01 Reagents for 50 tests
HI 93748-03 Reagents for 150 tests
For other accessories see page 73.
MEASUREMENT PROCEDURE
• Select the Manganese LR method using the procedure described in
the Method Selection section (see page 12).
• Fill one cuvette with 10 mL of deionized water (up to the mark).
• Fill a second cuvette with 10 mL of sample (up to the mark).
• Add the content of one packet of HI 93748A-0 Ascorbic acid to
each cuvette, replace the caps and shake gently until completely
dissolved.
10 mL
10 mL