Hach-Lange LZV937 - DR 6000 additional software enzymology tests - Handbuch (Seite 47)

English 47
Starch and starch (S)
Procedure for starch
1. Prepare the test according to the process specification.
2. Select STORED PROGRAMS > SELECT BY NUMBER.
3. Enter the number 2222 for the program "Starch". Confirm with OK.
Enter the number 2223 for the program "Starch (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 3:00 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 15:00 timer starts. When the time elapses, two short acoustic
signals are sounded.
Extinction 2 is measured in all cuvettes.
Note: For program 2223 starch (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 starch and g/100 g starch on the
display.
Program number 2222 2223
Parameter Starch Starch (S)
R-Biopharm AG order number Art. no. 10 207 748 035
Results information
g starch / L sample solution
g starch / 100 g sample
Carousel loading
Carousel position 1: Blank value
Carousel position 2-7: Samples 1 to 6