Hach-Lange LZV937 - DR 6000 additional software enzymology tests - Handbuch (Seite 32)

English 32
Work procedures
L-malic acid (L-malate)
Procedure for L-malic acid
1. Prepare the test according to the process specification.
2. Select STORED PROGRAMS > SELECT BY NUMBER.
3. Enter the number 2201 for the program "L-malic acid". 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 10:00 timer starts. When the time elapses, two short acoustic
signals are sounded.
Extinction 2 is measured in all cuvettes.
The result is indicated in g/L L-malic acid and g/100 g L-malic acid
on the display.
Program number 2201
Parameter L-malic acid
R-Biopharm AG order number Art. no. 10 139 068 035
Results information
g L-malic acid / L sample solution
g L-malic acid / 100 g sample
Carousel loading
Carousel position 1: Blank value
Carousel position 2-7: Samples 1 to 6