Hach-Lange LZV937 - DR 6000 additional software enzymology tests - Handbuch (Seite 49)

English 49
Sulphite and sulphite (S)
Procedure for sulphite
1. Prepare the test according to the process specification.
2. Select STORED PROGRAMS > SELECT BY NUMBER.
3. Enter the number 2226 for the program "Sulphite". Confirm with
OK.
Enter the number 2227 for the program "Sulphite (S)" with creep
monitoring. Confirm with OK.
4. Press START to start the program.
5. Set the blank value cuvette to carousel position 1.
6. Set the sample cuvettes to carousel positions 2-7.
7. Press READ CAROUSEL.
The 5:00 timer starts. When the time elapses, two short acoustic
signals are sounded.
Extinction 1 is measured in all cuvettes. R1 is shown on the display.
8. Pipette the reagent into the blank value and sample cuvettes
according to the process specification.
9. Press READ CAROUSEL.
The 30:00 timer starts. When the time elapses, two short acoustic
signals are sounded.
Extinction 2 is measured in all cuvettes.
Note: For program 2227 sulphite (S) with creep monitoring,
extinction 2 is measured six times in order to verify the stability of
the value and to preclude a subsequent creep reaction.
The result is indicated in g/L sulphite and g/100 g sulphite on the
display.
Accessories
Program number 2226 2227
Parameter Sulphite Sulphite (S)
R-Biopharm AG order number Art. no. 10 725 854 035
Results information
g sulphite / L sample solution
g sulphite / 100 g sample
Carousel loading
Carousel position 1: Blank value
Carousel position 2-7: Samples 1 to 6
Description Order- no.
Carousel insert (sample changer) 10 mm LZV902.99.00001
10 mm square plastic cuvettes 2743400
10 mm square cuvettes, matched pair, glass,
(3,5 mL)
2095100