Methods; Molybdenum Lr, With Powder Pack (Mo 1) - Orbeco HELLIGE SC450 Manual De Instrucciones

Methods

Molybdenum LR with Powder Pack
Mo 1
0.03 – 3.0 mg/l Mo
Tablet Powder
Fill a clean Mixing Cylinder (25-ml) with 20 ml of the water sample.
Add the contents of one Molybdenum 1 LR F20 Powder Pack
straight from the foil into the water sample (20 ml).
Close the Mixing Cylinder tightly with a stopper and swirl several times
to dissolve the powder.
Use two clean vials (24 mm Ø) and mark one as blank for zeroing.
Fill each vial with 10 ml of pre prepared water sample.
Close the blank tightly with the cap.
Add 0.5 ml of Molybdenum 2 LR solution to the sample.
Close the vial tightly with the cap and invert several times to mix the
contents.
Wait for a reaction period of 2 minutes.
Place the blank in the sample chamber making sure that the
are aligned.
Zero
Press [ZERO/TEST] key.
Test
Mo 1
The method symbol flashes for approx. 8 seconds.
Tablet Powder
Remove the vial from the sample chamber.
Place the sample in the sample chamber making sure that the
are aligned.
Zero
Press [ZERO/TEST] key.
Test
Mo 1
The method symbol flashes for approx. 3 seconds.
Tablet Powder
The result is shown in the display in mg/l Molybdenum.
RESULT
Tablet Powder
Tolerance:
0
>
Conversion:
mg/l MoO
mg/l Na
8
All manuals and user guides at all-guides.com
– 1 mg/l: ± 0.05 mg/l Mo
1 – 3 mg/l: ± 0.10 mg/l Mo
= mg/l Mo x 1.67
4
MoO = mg/l Mo x 2.15
2 6
marks
marks
SC450_V1_04/2011