YSI 2900D handleiding
Handleiding
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8-11
8.2.10 Lactose
This is a direct reading of lactose in solution at the enzyme sensor. The enzyme Galactose oxidase is immobilized in
the enzyme membrane.
Lactose + O
2
Gal Oxidase
H
2
O
2
+ Galactose Dialdehyde Derivative
System Buffer
YSI 2705
Calibrator Std
YSI 2783
Linearity Std
YSI 2784
Membrane
YSI 2702
Membrane
Color
White
Detection
Range
0.05–25 g/L
Calibration
Point
5.0 g/L
Linearity Check
Point
25.0 g/L
Sample Size
25 µL
End Point
30 sec
Precision
(CV,n=10)
2% or 0.02 g/L,
whichever is
greater
Linearity
±2% or 0.02 g/L,
whichever is
greater
(0.05 to Cal Point)
±5%
(Above Cal Point to
Range Max)
Typical Working
Life
10 days
Note: See Appendix B – Concentration
Unit Conversion if concentration unit
conversion is required.
Special Considerations:
• If sample dilution is required, use reagent water.
• Always use fresh YSI 2705 Buffer in an opaque buffer
bottle, such as the YSI 2935 when installing a new
Membrane. Do not expose the 2705 Buffer to light any
more than necessary before it is installed in the 2935
Bottle.
• The sample should be galactose-free. Galactose,
glycerol, and other galactosides such as raffinose and
stachyose are substrates for galactose oxidase. They
may interfere by producing artificially high lactose
readings.
• The enzyme membrane integrity test involving the use of
YSI 2363 Potassium Ferrocyanide solution is not
informative since ferrocyanide exists in the 2705 system
buffer.
Bekijk gratis de handleiding van YSI 2900D, stel vragen en lees de antwoorden op veelvoorkomende problemen, of gebruik onze assistent om sneller informatie in de handleiding te vinden of uitleg te krijgen over specifieke functies.
Productinformatie
| Merk | YSI |
| Model | 2900D |
| Categorie | Niet gecategoriseerd |
| Taal | Nederlands |
| Grootte | 50780 MB |
