
257
SP600 Spectrophotometer 01/2008
1.1 Methods
12. Close the vial tightly with the cap and swirl several
times until the tablets are dissolved.
13. Place the vial in the sample chamber making sure that
the marks are aligned.
14. Press
TEST
key.
Wait for a
reaction period of 10 minutes
.
After the reaction period is finished the measurement
starts automatically.
The result is shown in the display in mg/l Urea.
Notes:
1. The sample temperature should be between 20°C and 30°C.
2. Determination at the latest one hour after sample taking.
3. The tablets must be added in the correct sequence.
4.
Store reagent 2 (Urease) in the refrigerator at a temperature of 4°C to 8°C.
5. The AMMONIA No. 1 tablet will only dissolve completely after the AMMONIA No. 2
tablet has been added.
6. Ammonium and chloramines are also measured during urea measurement.
7. Before analysing seawater samples, a measuring spoon of Ammonia Conditioning
Powder must be added to the sample and swirled to dissolve before AMMONIA No. 1
tablet is added.
8. Fill the vial with the same size drops by holding the bottle vertically and squeeze
slowly.
Countdown
10:00
Zero accepted
prepare Zero
press ZERO
*.** mg/l Urea
Summary of Contents for SP600
Page 1: ...Instruction Manual SP600 Spectrophotometer ...
Page 2: ......
Page 9: ...7 SP600 Spectrophotometer 01 2008 Part 1 Methods ...
Page 37: ...35 SP600 Spectrophotometer 01 2008 ...
Page 83: ...81 SP600 Spectrophotometer 01 2008 ...
Page 163: ...161 SP600 Spectrophotometer 01 2008 1 1 Methods Note 1 Mn MnO4 KMnO4 ...
Page 203: ...201 SP600 Spectrophotometer 01 2008 ...
Page 207: ...205 SP600 Spectrophotometer 01 2008 ...
Page 249: ...247 SP600 Spectrophotometer 01 2008 1 1 Methods Notes 1 SO3 Na2 SO3 ...
Page 251: ...249 SP600 Spectrophotometer 01 2008 ...
Page 266: ...264 SP600 Spectrophotometer 01 2008 ...
Page 267: ...265 SP600 Spectrophotometer 01 2008 Part 2 Operating manual ...
Page 330: ...328 SP600 Spectrophotometer 01 2008 3 6 3 3 blank because of technical requirements ...