1.1 Methods
Silica LR / Silicon dioxide LR
with Vario Powder Pack
and Liquid Reagent
0.1 – 1.6 mg/l SiO
2
Use two clean vials (24 mm Ø) and mark one as blank for
zeroing.
1. Fill each vial with 10 ml of the water sample.
2. Add 0.5 ml Vario Molybdate 3 reagent solution into
each vial.
3. Close the vials tightly with the caps and swirl several
times to mix the contents (Note 1).
4. Press [
] key.
Wait for a reaction period of 4 minutes (Note 2).
After the reaction period is finished proceed as follows:
5. Add the contents of one Vario Silica Citric Acid F10
Powder Pack straight from the foil into each vial.
6. Close the vials tightly with the caps and swirl several
times to mix the contents.
7. Press [
] key.
Wait for a reaction period of 1 minute (Note 3).
After the reaction period is finished proceed as follows:
8. Place the vial (the blank) in the sample chamber making
sure that the marks are aligned.
9. Add the contents of one Vario Silica LR Amino Acid
F F10 Powder Pack straight from the foil into the vial
(the sample).
10. Close the vial tightly with the cap and swirl several times
to mix the contents.
Countdown
4:00
start:
Countdown
1:00
start:
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