Camlab Lovibond MD 610, Инструкция по эксплуатации

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196
MD 610_2d 11/2019
Nitrogen, total HR
with Vario Tube Test
5 – 150 mg/l N
Insert the adapter for 16 mm Ø vials.
1. Open two TN Hydroxide HRdigestion vials and add
the contentsof one Vario TN Persulfate Rgt. Powder
Pack (Note 2, 3).
2. Add 0.5 ml deionised water to the preparedvial (this
is the blank, Note 4, 5).
3. Add 0.5 mlof the water sample to theother preparedvial
(this is the sample).
4. Close the vials with the caps and shake to mix the
contents (at least 30 seconds, Note 6).
5. Heat the vialsfor 30 minutes in the preheated reactor
at a temperature of 100°C (Note 7).
6. After 30 Minutes remove the vials from the reactor.
(CAUTION: The vials are hot!)
Allow the vials to cool to room temperature.
7. Open the cooled digestion vialsand add the contentsof one
Vario TN Reagent A Powder Pack to each vial (Note 2).
8. Close the vials with the caps and shake to mix the
contents (at least 15 seconds).
9. Press [ ] key.
Wait for a reaction period of 3 minutes.
After the reaction period is finished proceed as follows:
10. Open the digestion vials and add the contents of one
Vario TN Reagent B Powder Pack to each vial (Note 2).
Countdown
3:00
start:
1 2
3 4
Ø 16 mm
8 1 2