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Reference Standards
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Food Testing | Pesticides
Fruit Juice Organic Acid Standards
citric acid 2,000µg/ml
fumaric acid 10*
malic acid 2,000
quinic acid 2,000
tartaric acid 2,000
*Fumaric acid is a trace impurity in malic acid, as well as an added component of the mix. The amount of fumaric acid in malic acid will not affect the stated concentration of malic acid, but can represent a significant and variable deviation from the low concentration of fumaric acid stated to be in the mix. All other components of the mix are at the specified concentration.
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