Tartaric Acid Test Strips 0.5-5.0 Reflectoquant *Req RQflex 2 #16950-1 HAZMAT fee incl

Purchase Tartaric Acid Test Strips 0.5-5.0 Reflectoquant *Req RQflex 2 #16950-1 HAZMAT fee incl

Tartaric Acid Test Strips 0.5-5.0 Reflectoquant   *Req RQflex 2 #16950-1 HAZMAT fee incl MSDS (Material Safety Data Sheet)







Reflectoquant® Tartaric Acid Test, Cat No 16721

Reflectoquant® Tartaric Acid Test, Catalog No. 16721/1

1. Method

Tartaric acid reacts ammonium vanadate to form a red dye that is determined reflectometrically.

2. Measuring Range and Number of Determinations

Measuring Range1) Number of Determinations
0.5 - 5.0g/l tartaric acid 50

3. Applications

Sample Material:

Wine, Must, and Fruit juices, if necessary, after appropriate sample pretreatment (applications available upon request)

4. Influence of Foreign Substances

This was checked in solutions containing 1g/l tartaric acid. The concentrations of foreign substances given in the table lie below the limit at which the determination is interfered with:

Concentrations of Foreign Substances in g/l
Ascorbate 0.05 Oxalate 3.0 Fructose 20
Citrate 3.0 Sorbate 1.0 Glucose 20
Lactate 3.0 SO32- 0.5
Malate 3.0 Succinate 3.0

5. Reagents and Auxiliaries

Please note the warnings on the packaging materials!
The analytic test strips are stable up to the date stated on the pack when stored in the closed tube at +15 to +25°C.

Package Contents:

Tube containing 50 analytical test strips
1 bar-code strip
1 bottle of reagent T-1
1 graduated 5ml plastic syringe
1 test vessel with stopper

Other Reagents:

Activated charcoal Clarocarbon® G, Cat. No. 1.02509
Polyvinylpolypyrrolidone Divergan® RS, Cat. No. 1.07302, Merck KGaA, Darmstadt, Germany

6. Preparation

  • Samples containing more than 5.0g/l tartaric acid must be diluted with distilled water.
  • Strongly colored samples, e.g., red wine, must be decolored prior to the determination e.g., with activated charcoal Clarocarbon® G or polyvinylpolypyrrolidone Divergan® RS (applications available upon request).

7. Procedure

Observe the instructions for the RQflex 2 Reflectometer.
The following applies to the Tartaric Acid test:

Measurement Procedure A
Stored reaction time: 30 sec.

Rinse the test vessel several times with the pretreated sample (10-40°C)
Pretreated Sample 5ml Fill the test vessel to the 5ml mark.1)
Distilled water 5ml Add to the contents of the test vessel to the 10ml mark.1)
Reagent T-1 10 drops Add and swirl.
Immediately press the START button of the reflectometer and this is imperative - at the same time immerse both reaction zones of the analytical test strip in the measurement sample for approximately 2 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.

After the end of the reaction time, read off the result from the dsplay in g/l tartaric acid.

The result is automatically stored.

1) The enclosed syringe can be used to enhance the measurement accuracy.

Note:

  • If the measurement value exceeds the measuring range, repeat the measurement using fresh, diluted samples until a value of less than 5.0g/l tartaric acid is obtained. This must then be multiplied by the corresponding dilution factor.
  • If the test strip is inserted into the adapter after the reaction time has expired, renewed depression of the START button may produce a false result.

8. Notes

  • A method control with aqueous tartaric acid standards is not possible.
  • Reclose the reagent bottle and the tube containing the test strips immediately after use.
  • Rinse the test vessel and the syringe with water only.
  • At the end of each workday, cleanse the strip adapter thoroughly with water or ethanol.

Purchase Tartaric Acid Test Strips 0.5-5.0 Reflectoquant *Req RQflex 2 #16950-1 HAZMAT fee incl

  • Gallade Part#: 16721-1
  • Mfr Part#: 16721-1
  • Brand: EMD Chemicals EM Science
  • Container: 1 PK of 50 Strips
  • Misc: HAZMAT UN2790 PGIII
  • CAS Number: Solution

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