📝 Before testing, the sample should be restored to room temperature (20～30℃). Take a fresh sample, wipe off any soil, and cut into pieces smaller than 1 cm per side. Weigh 2.00±0.05 g of sample into a 15 mL centrifuge tube, then add 6 mL of extraction solution. Cap the tube and vortex or manually shake vigorously for 1 min. Let stand for 1 min to obtain the sample solution. According to testing requirements, dilute as per the following table to obtain the test solution. Sample Name | National Standard Limit (mg/kg) | Sample Solution (µL) + Extraction Solution (µL) Apple, Pear | 3 | 50+950 Grape | 5 | 25+975 Lemon, Pomelo, Orange | 10 | 200+1800 Potato | 15 | 7+993 Note: The above table does not list all testable samples. The applicability of unlisted samples must be confirmed with our Technical Center. After sample pretreatment is complete, spotting should be finished within 5 min. The sampling method refers to the "Administrative Measures for Food Safety Sampling Inspection" (Order No. 15 of the State Administration, 2019), and the national standard limits refer to GB2763.

Before testing, samples should be brought to room temperature (20–30°C). Take fresh samples, wipe off soil, and cut into pieces smaller than 1 cm on each side. Weigh 2.00 ± 0.05 g of sample into a 15 mL centrifuge tube, add 6 mL of extraction solution, cap the tube, vortex or manually shake up and down for 1 min, then let stand for 1 min to obtain the sample solution. According to the testing requirements, dilute as per the table below to obtain the test solution. Sample Name | National Standard Limit (mg/kg) | Sample Solution (µL) + Extraction Solution (µL) Apple, Pear | 3 | 50 + 950 Grape | 5 | 25 + 975 Lemon, Pomelo, Orange | 10 | 200 + 1800 Potato | 15 | 7 + 993 Note: The above table does not list all testable samples. For samples not listed, the applicability must be confirmed with our technical center. After sample preparation is complete, spotting should be finished within 5 min. Sampling method refers to the "Measures for the Administration of Food Safety Sampling and Inspection" (2019, Order No. 15 of the State Administration); national standard limits refer to GB 2763.

🧪 Test Procedure

Before the experiment, please read the operating instructions carefully. Before use, allow the test cassette and the sample to equilibrate to room temperature (20～30°C). Remove the test cassette from the original packaging, mark it, and use immediately. Using a pipette, aspirate 100 μL of the sample solution and add it vertically and slowly into the sample well (S well), or use the disposable dropper provided in the kit to aspirate the sample solution and add 3 drops vertically and slowly into the sample well (S well). Start timing when the liquid flows. React for 10 min. Immediately interpret the result.