Organophosphate Rapid Test Card pesticide residue rapid detection for vegetables and fruits,suitable for on-site and laboratory rapid testing.

Organophosphate Rapid Test Card

Product Code:GN90A-E1

【Introduction】

This product is suitable for the rapid detection of Organophosphate residues in vegetables and fruits. The test features simple operation, high sensitivity, and the entire testing process takes only 15 minutes, making it suitable for on-site and laboratory rapid testing.

【Limit of Detection】

Organophosphorus: 0.01mg/kg (ppm); Methyl organophosphates: 0.05mg/kg (ppm)

【Scope of Application】

Applicable to vegetables and fruits.

【Batch No. and Manufacturing Date】

Please refer to the packaging and the outer box.

【Test Principle】

The Organophosphate Rapid Test Card is based on the principle of competitive inhibition immunochromatography. During chromatographic migration, Organophosphate in the sample binds to the colloidal gold-labeled Organophosphate-specific monoclonal antibody, thereby inhibiting the binding between the antibody and the Organophosphate–BSA conjugateimmobilized on the test line of the NC membrane, resulting in changes in the color intensity of the test line.

【Components】

【Required Equipment】

Electronic balance (accuracy ≥ 0.1 g), scissors, single-channel micropipettes (100–1000 μL, 20–200 μL), vortex mixer.

【Sample Preparation】

Weigh 2g±0.1g of the vegetables or fruits sample into a 50 mL centrifuge tube (leafy vegetables should be cut into pieces of approximately 1 cm × 1 cm, and take cross-sectional samples or extract their epidermis of tubers ). Add 3 mL of sample extraction solution, mix gently by hand (vigorous shaking is prohibited) for 2 minutes, let it stand to get sample solution for testing.

【Test Procedure】

1. Remove the test card, micro-well and dropper from the aluminum foil bag and use it within 1 hour.

2. Use a dropper to collect 4 drops (approximately 100μL ) of sample solution into the micro-well, gently blow and tap to completely dissolve the red substance at the bottom of the micro-well, and let it stand horizontally for 2 minutes to react. Collect all the solution from the micro-well and add it to the sample well (S) on test card . Start timing after adding the sample;

3. Allow the reaction to proceed. After 5 minutes, interpret the result according to the diagram. Results read at other times are invalid.

【Result Interpretation】

Negative:

The color intensity of the T line is stronger than or similar to that of the C line, indicating that Organophosphate is not present in the sample or its concentration is below the detection limit.

Positive:

The color intensity of the T line is obviously weaker than that of the C line, or the T line does not appear, indicating that the Organophosphate concentration in the sample is equal to or higher than the detection limit.

Invalid:

The C line does not appear regardless of whether the T line appears, indicating that the test card is invalid, expired, or the operation was improper. The test must be repeated. If this occurs repeatedly, please contact our company.

【Result Illustration】

【Precautions】

1. The test card is for single use at room temperature; do not use expired test cards.

2. Disposable plastic droppers must not be reused to avoid cross-contamination.

3. During use, avoid touching the white membrane area in the center of the test card; avoid direct sunlight and direct airflow from fans.

4. Tap water, distilled water, or deionized water must not be used as negative controls.

5. If a positive result is obtained, it is recommended to retest once.

6. If any problems occur during testing, please contact our company.

【Specificity】

This product shows no cross-reactivity with other pesticides such as Carbofuran, chlorpyrifos and isoproterenol, etc.

【Storage Conditions】

Store sealed, dry, and protected from light at 2–30°C. Do not freeze.
Shelf life: 12 months.

【Safety Statement】

This product does not contain carcinogenic, highly toxic, flammable, explosive, or strongly corrosive reagents.

Shenzhen Lvshiyuan Biotechnology Co., Ltd

D Building, National Biological Industrial Park of Marinelife, No.2 Binhai Road, Dapeng, Shenzhen, 518120 China

Tel. 86-18165709090/86-755-28438788 Fax 86-755-28938800

Email: info@lsybt.com

www.lsybt.com