
256
SP600 Spectrophotometer 01/2008
1.1 Methods
Urea
with Tablet and Liquid Reagent
0.1 – 2 mg/l (NH
2
)
2
CO
1. Fill a clean vial (24 mm Ø) with
10 ml of the water sample
,
close tightly with the cap.
2. Place the vial in the sample chamber making sure that
the marks are aligned.
3. Press
ZERO
key.
4. Remove the vial from the sample chamber.
5. Add
2 drops of Urea Reagent 1
to the water sample
(Note 8).
6. Close the vial tightly with the cap and swirl several
times to mix the contents.
7. Add
1 drop of Urea Reagent 2
(Urease) to the same
water sample (Note 8).
8. Close the vial tightly with the cap and swirl several
times to mix the contents.
9. Press
[ ]
key.
Wait for a
reaction period of 5 minutes
.
After reaction period is finished proceed as follows:
10. Add
one AMMONIA No. 1 tablet
straight from the
foil to the prepared water sample and mix to dissolve
with a clean stirring rod.
11. Add
one AMMONIA No. 2 tablet
straight from the
foil to the same water sample and mix to dissolve with
a clean stirring rod.
prepare Zero
press ZERO
Countdown
5:00
start:
3
9
0
Содержание SP600
Страница 1: ...Instruction Manual SP600 Spectrophotometer ...
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Страница 9: ...7 SP600 Spectrophotometer 01 2008 Part 1 Methods ...
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Страница 73: ...71 SP600 Spectrophotometer 01 2008 1 1 Methods Notes 1 Oxidizing agents interfere as they react like Chlorine ...
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Страница 163: ...161 SP600 Spectrophotometer 01 2008 1 1 Methods Note 1 Mn MnO4 KMnO4 ...
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Страница 231: ...229 SP600 Spectrophotometer 01 2008 1 1 Methods Notes 1 Only ortho Phosphate ions react 2 P PO4 P2 O5 ...
Страница 245: ...243 SP600 Spectrophotometer 01 2008 1 1 Methods Note 1 If Sulfate ions are present a cloudy solution will be given ...
Страница 249: ...247 SP600 Spectrophotometer 01 2008 1 1 Methods Notes 1 SO3 Na2 SO3 ...
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Страница 266: ...264 SP600 Spectrophotometer 01 2008 ...
Страница 267: ...265 SP600 Spectrophotometer 01 2008 Part 2 Operating manual ...
Страница 330: ...328 SP600 Spectrophotometer 01 2008 3 6 3 3 blank because of technical requirements ...
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