Thermo Scientific AQUAfast AQ3700, User Manual

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Thermo Scientific Orion AQUAfast AQ3700 Colorimeter User Guide
1.1 Methods
Manganese LR
with Powder Pack
0.01 – 0.7 mg/l Mn
Use two clean vials (24 mm Ø) and mark one as blank for
zeroing (Note 1).
1. Fill a clean vial with 10 ml of deionized water (this
is the blank).
2. Fill the second clean vial with
10 ml of the water
sample
(this is the sample).
3. Add the contents of one Ascorbic Acid Powder
Pack straight from the foil into each vial. (Note 2)
4. Close the vials tightly with the caps and swirl several
times to mix the contents.
5. Fill each vial with drops of the same size by holding the
bottle vertically and squeeze slowly (Note 3):
15 drops of Alkaline Cyanide reagent solution
6. Close the vials tightly with the caps and swirl several
times to mix the contents.
7. Fill each vial with drops of the same size by holding the
bottle vertically and squeeze slowly:
21 drops of PAN Indicator solution
8. Close the vials tightly with the caps and swirl several
times to mix the contents.
9. Press
[ ]
key.
Wait for a reaction period of 2 minutes (Note 4).
After the 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 Manganese.
prepare Zero
press ZERO
Zero accepted
prepare Test
press TEST
Countdown 1
2:00
start:
1 2
3 4
4
2
2