7
3
Ø 16 mm
Countdown
5:00
start:
prepare Zero
press ZERO
Zero accepted
prepare Test
press TEST
58
Surfactants, cationic
8
with MERCK Spectroquant
Cell Test, No. 1.01764.0001
0.05 – 1.5 mg/l CTAB
Use two clean Reagent tubes and mark one as blank for
zeroing.
1. Add 5 ml deionised water in the vial marked as blank
(this is the blank, note 6). Do not mix contents!
2. Fill the second prepared vial with 5 ml of the water
sample (this is the sample, note 6). Do not mix
contents!
3. Pipette 0.5 ml reagent T-1K into each vial. (note 6)
4. Close the vials tightly with the caps and swirl for 30 sec-
onds.
5. Press [ ] key.
Wait for a reaction period of 5 minutes.
After the reaction period is finished proceed as follows:
6. Place the vial (the blank) in the sample chamber making
sure that the marks
7. Press ZERO key.
8. Remove the vial from the sample chamber.
9. Place the vial (the sample) in the sample chamber
making sure that the marks
10. Press TEST key.
The result is shown in the display in mg/l CTAB.
®
are aligned. (note 9)
are aligned. (note 9)
07/2017