Dipstick assay for milk test packaging

Receptor assay test for rapid determination of beta-lactam and cephalosporin antibiotics (e.g., penicillin, ampicillin, cephalonium etc.) in milk, which a fast and robust test, which can easily be used by dairies, farmers, milk receivers and milk-testing laboratories. 

test strip vials

The application of dipstick saaay:

The chloramphenicol test kit is a competitive chromatographic immunoassay for the semi-quantitative detection of the presence of chloramphenicol in milk specimen.
Specimen: raw milk, sterilized milk, and whole milk powder.
Cut-off: 0.1ppb
Principle

The chloramphenicol test kit is an antibody based immunoassay in dipstick format. A dipstick and a microwell are provided to carry out the assay running. The specific antibodies for Chloramphenicol are labeled to the test system. The veterinary drugs in milk specimen and the analytes complex pre-coated in the dipstick would competitively bind to the receptors. Result will be determined by comparing the color intensities of the red lines.

Dipstick assay tube

Storage and stability

The kit should be stored at 2-8°C. The kit will be valid in 12 months. The test dipsticks and microwells are stable through the expiration date printed on the label. They must remain in the canister until use.  Use one dipstick and one microwell for one sample, the rest ones can be stored in the canister for future use. Do not freeze. Do not use beyond the expiration date.

The packaging of test strips is also important, desiccant enviroment is important for test strips.