📝 Sample Preparation

SampleBefore testing,shouldreach room temperature (20-30°C) , Take FreshSampleWipe Off Mud, Cut into Pieces成<1cmSquare PiecesFilm. Weigh 1.00±0.05 g homogenized sample into a 15 mL Centrifuge Tube. Add 6 mLSample Extractant, vortex mixervortex1min, let stand1min, ObtainSampleSolution. According toDetectionneed to求, According to the Table BelowDilute, Obtainsample solution. SampleName National Standard Limit (mg/kg) SampleSolution (μL) +extraction solution (μL) 甜Gourd Typefruits 0.2 50+350 head-formingCabbage, Cucumber, Chili Pepper 0.5 20+380 梨 1 10+390 Spinach, Onion 2 10+790 (得tosample solution后, shouldin/at5minComplete Spotting Within)

🧪 Test Procedure

Before the experiment, please carefully read the operation manual. Before use, bring the test card and the test sample to room temperature (20–30°C). Remove the test card from its original packaging, label it, and use it immediately. Use a pipette to draw 100 μL (approximately 3 drops) of the test solution and vertically drop it into the sample well (S well). Time the reaction for 10 min, interpret the result according to the schematic diagram. Readings taken at other times are invalid.