Thermo Scientific AQUAfast AQ3700, User Manual

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Thermo Scientific Orion AQUAfast AQ3700 Colorimeter User Guide
1.1 Methods
Phosphate 2, ortho
with Ampoules
0.05 – 5 mg/l PO
4
Insert the adapter for 13 mm Ø vials.
1. Place the blank in the sample chamber. The blank is part
of the test kit.
2. Press ZERO key.
3. Remove the blank from the sample chamber.
4. Fill the sample container to the 25 ml mark with the
water sample.
5. Fill the sample container with drops of the same size by
holding the bottle vertically and squeeze slowly:
2 drops A-8500 Activator Solution
6. Close the sample container with the cap tightly and
swirl several times to mix the contents.
7. Place one ampoule in the sample container. Snap the
tip by pressing the vial against the side of the sample
container. The ampoule breaks at the neck and the vial
fills automatically. A small volume of inert gas remains
in the ampoule.
8. Mix the contents of the ampoule by inverting it several
times, allowing the bubble to move from one end to
the other. Dry the outside of the vial.
9. Place the ampoule in the sample chamber.
10. Press
TEST
key.
Wait for a reaction period of 3 minutes.
After the reaction period is finished the measurement
starts automatically.
The result is shown in the display in mg/l
ortho-Phosphate.
prepare Zero
press ZERO
Zero accepted
prepare Test
press TEST
Countdown
3:00
2
8
3