Walnut Free Test is a lateral flow test that determines walnut residues in food products and production environments from solid, liquid, and surface samples.LATERAL FLOW CHARACTERISTICS:Sandwich quantitative lateral flow test in cassette format available in 10 or 30 testsQualitative results can be interpreted visually without a lateral flow readerPair with the optional 3PR Mini Reader or S-Flow Reader to obtain qualitative and quantitative interpretation of results with advanced features for traceabilityA third hook line prevents false negative results due to overload of target analyteLimit of detection (LOD) for food samples and CIP rinse: 3.0 ppm (3.0mg/kg) walnut (0.51ppm walnut protein)Limit of quantification (LOQ) for foos samples and CIP rinse: 5.0ppm (5.0mg/kg) walnut (0.85ppm walnut protein)Limit of detection (LOD) for surface samples: 0.4μg/100cm²Calibration range for quantification of food samples and CIP rinses: 5-128ppmQuick time to result: 5 minsBroad range of validated matricesRoom or refrigerator storage at 4-30 deg C