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RIDASCREEN®FAST Folsäure (Folic Acid) is a competitive enzyme immunoassay for the quantitative determination of added folic acid in milk, milk powder, food for special medical purpose, grain and cereals, fortified flour, vitamin powder, -mixture, -tablets, and vitamin juice.


General Information:

Folic acid also known as vitamin B9 or vitamin B11 belongs to the group of water soluble vitamins. It can´t be produced by the human body and therefore must be included in the diet in order to meet the daily requirements. Folic acid plays a key role in all growth and cell division processes. Adequate folic acid intake during pregnancy is important to avoid neural tube defects, for example. Some countries have agreed to fortify either bread, cereals, flour, pasta, rice or other grain products with folic acid in different concentrations as a preventive approach to improve micronutrient status of the population.

Art. No. R3203
Test format Microtiter plate with 48 wells (6 strips with 8 removable wells each)
Sample preparation milk: can be applied directly, dilution if necessary
juices: can be applied directly, dilution if necessary
other matrices: extraction, dilution if necessary
Incubation time 25 min
Detection limit 0.5 μg/L (ppb)

(corresponding to standard substance)
Cross reactivity

Folic Acid: 100 %
Dihydrofolic Acid: approx. 14 %
Tetrahydrofolic Acid: < 0.5 %
5-Methyltetrahydrofolic Acid: < 0.5 %
Formyltetrahydrofolic Acid: < 0.5 %
Tetrahydrobiopterin:< 0.5 %
6-Biopterin: < 0.5 %

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