ORBECO SP600, Инструкция по эксплуатации, Страница: 28 / 334

26 SP600 Spectrophotometer 01/2008
1.1 Methods
Ammonium
with Powder Pack
0.01 – 0.8 mg/l N
Use two clean vials (24 mm Ø) and mark one as blank for
zeroing.
1. Fill a clean vial (24 mm Ø) with 10 ml of deionized
water
(this is the blank).
2. Fill the other clean vial (24 mm Ø) with 10 ml of the
water sample (this is the sample).
3. Add
one Vario Ammonium Salicylate F10 powder
pack straight from the foil to each vial.
4. Close the vials with the caps and shake to mix the con-
tents.
5. Press [ ] key.
Wait for a reaction period of 3 minutes .
After reaction period is finished proceed as follows:
6. Add one Vario Ammonium Cyanurate F10 powder
pack straight from the foil to each sample.
7. Close the vials with the caps tightly and shake to mix
the contents.
8. Press [ ] key.
Wait for a
reaction period of 15 minutes
.
After reaction period is finished proceed as follows:
9. Place the vial (the blank) in the sample chamber making
sure that the marks are aligned.
10. Press
ZERO
key.
11. Remove the vial from the sample chamber.
12. Place the vial (the sample) in the sample chamber
making sure that the marks are aligned.
13. Press TEST key.
The result is shown in the display in mg/l Ammonium.
1 2
3 4
prepare Zero
press ZERO
Zero accepted
prepare Test
press TEST
Countdown
3:00
start:
Countdown
15:00
start:
6 2