OMA Consulting Protocol Review: OMACON-2019-2

During that time the samples can be kept at ambient temperature. 2.4.11 General sample pretreatment: High viscous samples (Greek yogurt, high protein yogurt, crème caramel or others) must be liquified before analyzing in order to be able to pipette them inside the measurement cuvette. Make use of an Ultra-turrax or a mincer. 2.4.11.1 Occasionally, an extra step of heating is needed. For

example, for spreadable or soft cheese, heat in a microwave at low power for a few seconds in order to melt it before analyzing. In case of high viscous samples, the electrodes must be

2.4.11.2

cleaned with distilled water between analysis.

2.4.11.3

Butter cannot be analyzed by BIOMILK 300 LAC as it is not

miscible in aqueous solution.

2.4.11.4

The presence of added Vitamin C (ascorbic acid and derivatives, E-300, E301 and E-302) may interfere in the BIOMILK 300 LAC result. Please contact Biolan for support.

2.4.12 Sample analysis 2.4.12.1

Press “Sample”, fit the cuvette correctly with 10 mL of

Measurement Solution and press CONTINUE.

2.4.12.2

Wait until the device issues a sound signal. Press CONTINUE and inject the sample into the cuvette (See Table 5). The result will be shown on the screen as mg/L or g/L of

2.4.12.3

lactose, depending on the range used.

2.4.12.4

To save the result of an analysis, press SAVE and enter a

code.

2.4.12.5

Press the RECORDS option of the main screen and select LACTOSE to see the recorded data. Additionally, there is the option of downloading the recorded data from the device to a computer, using the specific software developed by Biolan.

2.4.12.6

To delete the data saved, go to RECORDS and press

DELETE ALL.

2.4.12.7

Replace the contents of the cuvette with 10 mL of new LAC

Measurement Solution before analyzing a new sample.

2.5

Method Range (Linearity) Study

The method range (linearity) study determines the applicable range of the method extending beyond the set of standards or calibrators supplied with the test kit. SMPR

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