Instruction Manual Mi453 REDUCING SUGARS Photometer for wine analysis
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MEASUREMENT
Note
: A single blank vial may be used more than once; the blank vial is stable
up to one
week
if stored in a dark place at room temperature. Always use the same lot of reagents for
blank and samples. For most accurate measurement run a blank for each set of mesurement.
Note
: If the expected RS concentration is above 50.00 g/L (for example for must analysis),
it is recommended to dilute the sample 4 or 5 times with water.
• Remove the cap from two vials
Mi553A-0
RS reagent A.
• Use the
Mi0024
1000 μL automatic pipette to
add exactly 1 mL of
Mi553B-0
RS reagent B to
each vial.
For a correct use of the automatic pipette
please follow the related Instruction Sheet.
• Use the
Mi0026
200 μL automatic pipette to
add exactly 200 μl of wine sample to one vial
(Sample) and 200 μL of deionized water to
the other vial (Blank).
• Preheat the reactor to 105 °C (221°F). For a correct use of the reactor follow the
Reactor Instruction Manual.
Do not use an oven or microwave.
• Filter the treated wine into an empty cuvet.
This is the
wine sample
.
Note
: if the filtered wine is still red, repeat the
above procedure.
wine
sample
deionized
water
Sample
Blank