Water I.D. Primelab 2.0, Manual

Page: 191 / 301

(152) Nitrogen-total HR
(all Steps)
5 - 150 mg/l (N)
Reagent-Kit
Internal Name: 152-NitroTotHR-pre
40
40
60 80
100
40
30
30
20
20
20
20
10
10
0 0
°C
°F
Nitrogen HR Kit (PL152-Kit)
Measurement procedure:
1 Prepare 2 Hydroxide HR cuvettes (16 mm). Label one as a ZERO cuvette.
2 Add 1 x Persulfate powder pillow into both cuvettes.
3 Open the first cuvette (ZERO cuvette).
4 Fill 0.5 ml distilled water in the cuvette.
5 Open the second vial (sample vial).
6 Fill 0.5 ml sample water in the cuvette.
7 Screw the lid back on the cuvette IMMEDIATELY.
8 Shake the vials vigorously for 00:30 minute(s).
9 Tap TEST to start a 00:30 minute(s) countdown.
10 Place cuvettes for 30 minutes at 100 °C in the preheated thermoreactor.
11 Tap TEST to start a 30:00 minute(s) countdown.
12 CAUTION: Cuvettes are hot!
13 Remove the cuvettes from the thermoreactor.
14 Let the cuvettes cool down to at least 25 °C.
15 Add 1 x Reagent A powder pillow into both cuvettes.
16 Screw the lid back on the cuvette IMMEDIATELY.
17 Shake the vials vigorously for 00:20 minute(s).
18 Tap TEST to start a 00:20 minute(s) countdown.
19 The reagents should now react.
20 Tap TEST to start a 03:00 minute(s) countdown.
21 Add 1 x Reagent B powder pillow into both cuvettes.
22 Screw the lid back on the cuvette IMMEDIATELY.
23 Shake the vials vigorously for 00:20 minute(s).
24 Tap TEST to start a 00:20 minute(s) countdown.
25 The reagents should now react.
26 Tap TEST to start a 02:00 minute(s) countdown.
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