$107 per analysis
Foodstuffs and food ingredients
Sample Size Requirements:
High-Performance Liquid Chromatography with Fluorescence Detection
IU/100g (natural source)
mg/100g vitamin E activity (natural source as alpha-tocopherol)
7-9 business days
Is rush testing available?
Samples are saponified by refluxing in ethanolic KOH. The extracts are diluted to known volumes and are submitted to reverse-phase HPLC analysis using a C8 column with isocratic elution. Alpha-tocopherol is detected using a fluorescence detector. Quantitation is performed by comparison to a standard curve.
Information Required by Submitter:
Please provide estimates and vitamin source, if available.
This test is ISO/IEC 17025 accredited through A2LA, Certificate # 2769.01.
If you have questions about our testing services, please contact us at +1 (800) 245-5615.