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Vitamin A (Retinol) Test

  • Price

    $105 per analysis

  • Turnaround time

    7 - 9 Business Days

  • Rush


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Vitamin A (Retinol) Test

Technical data sheet


Method description

The sample is extracted using saponification in basic solution, neutralized, diluted, and cleaned up. The extract is then separated using High-Performance Liquid Chromatography and the vitamin A content quantitated by UV-VIS detection.

Acceptable matrices

Food and Food Ingredients

Unacceptable matrices

Concentrates and premixes

Limit of quantitation

50 IU/100g (15 mcg/100g)



Method reference

AOAC 2001.13

Reportable unit

IU/100g, mcg/100g

Sample size requirements

15 g

Information required by submitter

Please supply estimates

Additional information

This test is ISO/IEC 17025 accredited through A2LA, Certificate # 2769.01. This method determines the quantity of vitamin A in food products that include fortified (retinyl palmitate) and naturally-occurring forms of vitamin A (retinol and retinyl acetate). One mcg RAE is equivalent to 1 mcg retinol. Carotenes and retinol may be added together for the NLEA nutrition label declaration of vitamin A content.

*Prices and offerings are subject to change without notice.

Common Vitamin A (Retinol) Test Testing Questions

While our sales and customer service team are happy to answer general testing questions, consultations typically start at a rate of $250 per 30 minutes regarding the interpretation of reported test results or questions about our test methods. We cannot consult on regulations, tolerance limits, or claims.

We make every effort to keep our methods and detection limits up to date according to the latest standards and qualifications. If you have any questions regarding the limit of detection/quantification or method references, please contact our Customer Service team at 1-800-245-5615.

Our standard turnaround time is 10 business days for most assays. There are some assays that require a longer turnaround time. We also offer a RUSH service that is half the time of the standard turnaround time of the assay at double the cost of the assay. A few assays that we provide cannot be rushed due to the nature of the test. Please check the specific assay you are interested in regarding the ability to RUSH the turnaround time.

Medallion Labs, a division of General Mills, offers multiple areas of expertise for analytical testing and product evaluation for the food and ingredient industry. Our areas of expertise include Chemical Analysis, Nutritional Analysis, Food Safety, Shelf Life Studies, Microbiology, Specialty Fibers, Physical Testing, Allergen Testing, as well as Product Evaluation (which includes Product Performance and Sensory Evaluation) and Technical Consulting/Method Development. Our methods are developed for the testing of food products and ingredients.

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Medallion Labs

A food testing program designed with mid-market and enterprise food and ingredient manufacturers in mind.