Ascorbic Acid Test Strip

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Ascorbic Acid Test Strip

  • Desiccant vial with flip-top lid
  • Water-resistant color chart
  • 50 test strips
SKU: ASC Categories: ,

Product Description

Ascorbic Acid Test Strip

The Ascorbic Acid Test Strip is used to detect Ascorbic Acid, or Vitamin C in graduations of 0, 0.01, 0.02, 0.05, & 0.1%. The Ascorbic Acid test strip is based on discoloration of blue red-ox indicator, depending on the concentration of ascorbic acid. Red-ox indicator is also sensitive to acidic compounds, and its blue color turns to purple in the presence of acids.

The Vitamin C strips are buffered to a certain extent to keep the blue color of the pad, but in the presence of strong acids, contained in some fruits or juices, the color can turn to a purple-pink instead of a blue-white. In such cases, we recommend using a special color chart (See FAQs) which shows results for Vitamin C in the presence of different concentrations of citric acid. Lemons and limes contain the highest amount of citric acid at about 5 percent. Grapefruits and oranges also have high content of citric acid at about 2.5 and 2 percent, respectively.


  1. Remove one Ascorbic Acid test strip from the vial and close cap.
  2. Dip the strip into the solution to be tested for 2 seconds.
  3. Remove the strip and compare to the color chart after 30 seconds.

ascorbic acid test strip, ascorbic acid, vitamin c, vitamin c test strip
ASC50; ASC; ASC-1V-50

Additional Information

Vial Dimensions:

1.125″ (D) x 3.375″ (H) [29mm (D) x 86mm (H)]

Strip Dimensions:

2.5" (L) x .1875" (W) [64mm (L) x 5mm (W)]


2 Years

Item #:

ASC-1V-50 (1 vial, 50 strips/vial)

Product Documentation