1. Description

With immuno-chromatographic method, aflatoxin B₁ rapid detecting card can qualitatively test the residue of aflatoxin B₁ in grains and fermentation products of grains. With the features of easy operation, short time detection and directly reading result, it is suitable for rapid detection of the residue of aflatoxin B₁ on site for enterprises in different fields and testing organization.

2. Application scope

It is suitable for qualitative detection of aflatoxin B₁ in grains (like corn, rice, beans, peanuts, etc.) and fermentation products of grains (soybean sauce, vinegar, edible oil, rice wine, etc.)

3. Lower limit of detection

The lower limit of detection of aflatoxin B₁ in sample is 1ppb (µg/kg).

4. Content 

Aflatoxin B₁ detecting card: 10pcs (including microwell)

Sample diluent: 1 bottle

Na₂CO₃ powder: 1 bag

15mL centrifuge tube: 10pcs

Disposable dropper: 10 pcs

Operation manual: 1pc

5. Specification

10 times

6. Other utensils and reagents for detection

Pipette, timer, small glass cup, n-hexane (analytical reagent), ethyl acetate (analytical reagent) and nitrogen (air) blow drying machine or electric blower.

7. Reagent preparation

For soybean sauce and vinegar detection: prepare 50mM Na₂CO₃ solution by using 100mL of ultrapure water to dissolve a bag of Na₂CO₃ powder. 

8. Determine result

Negative result: 

If the control line (C line) and the test line (T line) are both shown, it means the sample doesn’t contain aflatoxin B₁ or the content of aflatoxin B₁ is less than lower limit of detection.

Positive result:

If there is just a C line, it means the sample may contain aflatoxin B₁.

Invalid result: 

If it just shows a T line or there is no line, it means the detection is false or the detecting card is invalid. Read this operation manual carefully again, then use a new detecting card to retest. 

9. Preservation and period of validity

9.1 Storage condition: at 4-30℃, shade and dried condition without light.

It can’t be cryopreserved.

9.2 Validity period: 12 months.