Total Acidity Test Strips 100/pk Reflectoquant 1 PK *Requires RQflex 2 EMD# 16950-1

Purchase Total Acidity Test Strips 100/pk Reflectoquant 1 PK *Requires RQflex 2 EMD# 16950-1

Total Acidity Test Strips 100/pk Reflectoquant   1 PK *Requires RQflex 2 EMD# 16950-1 MSDS (Material Safety Data Sheet)







Reflectoquant® Total Acidity Test, pH 8.2, Product Inserts/General Instructions

Reflectoquant® Total Acidity Test, pH 8.2, Catalog No. 16138/1

1. Method

All acidic substances contained in the sample ("total acidity") react with an alkaline reagent. The resultant shift in the pH produces a corresponding color change of pH indicators that is evaluated reflectometrically.

2. Measuring Range and Number of Determinations

Measuring Range Number of Determinations
2.0 - 14.0g/l (as tartaric acid) 100

3. Applications

Sample Material:
Wine, must
Fruit/Vegetable juice, if necessary, after appropriate sample pretreatment.

Even intensely colored red wines can be analyzed without having to pretreat the sample.

4. Influence of Foreign Substances

The determination is not interfered with by the concentrations of foreign substances usually present in the sample materials stated above. Carbonic acid is also measured by this test; degas the sample by an appropriate method if necessary.

5. Reagents and Auxiliaries

The analytical test strips are stable at least up to the date stated on the pack when stored in the closed tube at +15 to +25°C.

Package Contents:

2 Tubes containing 50 analytical test strips each
2 Bar code strips
2 Bottle of Reagent TA-1 (one with metering pipette attached)
2 graduated 1ml plastic syringes
1 test vessel

6. Procedure

Observe the instructions for the reflectometer. The following applies to the Total Acidity Test:

Measurement Procedure A.
Stored reaction time: 10 sec.

Sample 1.0ml Inject into the test vessel with a syringe.
Reagent TA-1 1.0ml Add with the metering pipette1) and swirl
Fill the test vessel to the 10ml mark with distilled water or else add 8.0ml of distilled water using a pipette (this increases the accuracy of the measurement).

Immerse both reaction zones of the analytical test strip into the measurement sample for approximately 3 seconds.

Allow excess liquid to run off via the long edge of the strip onto an absorbent paper towel.

Immediately insert the test strip all the way into the strip adapter with the reaction zones facing the display and press the START button of the reflectometer.

Read off the result from the display in g/l.
The result is stored automatically.
1) Place the metering pipette loosely on the open reagent bottle. Slowly withdraw the plunger of the metering pipette from the lowest position until the lower edge of the black plunger seal coincides with the mark. (This fills only the dropping tube with reagent solution.) Subsequently add the reagent to the sample by slowly depressing the plunger all the way.

Note on Measurement:
While filling the metering pipette, this must not be firmly screwed in place on the reagent bottle!

7. Conversions

Units Required = Measurement Value x Conversion Factor
in g/l in g/l  
sulfuric acid tartaric acid 0.654
malic acid 0.893
citric acid 0.853
lactic acid 1.200

8. Notes

  • Reclose the reagent bottle and the tube containing the test strips immediately after use.
  • At the end of each workday, cleanse the strip adapter thoroughly with water or ethanol.

Purchase Total Acidity Test Strips 100/pk Reflectoquant 1 PK *Requires RQflex 2 EMD# 16950-1

  • Gallade Part#: 161381
  • Mfr Part#: 16138-1
  • Brand: EMD Chemicals EM Science
  • Container: 1 PK of 100 Strips

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