47
10 mL
8.7. CALCIUM, MARINE
SPECIFICATIONS
Range
200 to 600 mg/L (as Ca
2+
)
Resolution
1 mg/L
Accuracy
±6% of reading at 25 °C
Light Source
LED with narrow band interference filter @ 610 nm
Method
Adaptation of the Zincon method.
REQUIRED REAGENTS
Code
Description Quantity
HI7581
Calcium Reagent A
1 mL
HI7582
Calcium Reagent B
1 packet
REAGENT SETS
HI758‑26
Reagents for 25 tests
For other accessories see page 87.
MEASUREMENT PROCEDURE
• Select the
Calcium Marine
method using the procedure described in
the Method Selection section (see page 17).
• Add 1 mL of
HI7581
Calcium Reagent A to the cuvette
using a 1 mL syringe.
• Use the plastic pipette to fill the cuvette to the 10 mL mark
with deionized water and replace the cap. Invert 3‑5 times
to mix.
• Place the cuvette into the holder and close the lid.
CALCIUM, MARINE
