Milwaukee Instruments Doll MA871 Manual do Utilizador descarregar pdf (Página 11)

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5. Using plastic pipettes, rinse prism and sample well with distilled or deionized water.

Wipe dry. The instrument is ready for the next sample.

MAKING A STANDARD % BRIX SOLUTION

To make a Brix Solution, follow the procedure below:

• Place container (such as a

glass vial or dropper bottle that has a cover) on an

analytical balance.

• Tare the balance.

• To make an X BRIX solution weigh out X grams of high purity Sucrose (CAS #: 57-50-1)

directly into the container.

• Add distilled or deionized water to the container so the total weight of the solution is

100g.

• Note: Solutions above 60% Brix need to be vigorously stirred or shaken and heated

in a water bath to roughly 40 °C (104 °F). Remove solution from bath when

sucrose has dissolved. Cool completely before use. The total quantity can be

scaled proportionally for smaller containers but accuracy may be sacrificed.

Example with 25% Brix:

% Brix g Sucrose g Water g Total

25 25.000 75.000 100.000

1 2 ... 6 7 8 9 10 11 12 13 14 15 16

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Milwaukee Instruments Doll MA871 Manual do Utilizador Página 11