the one stepchloramphenicol rapid test is a rapid test to qualitatively detect the presence of chloramphenicol in specimns at the sensitivity of 0.3ppb. the major advantages of the one step test strip are that results can be obtained within 5 min.and that all reagents are included in the test device.and lower cost,a brief sample preparation. product name: Chloramphenicol Rapid Test Kit Features: high sensitivity, simple, easy to use and accurate Formats: cassette, stripRead Time:in 5 minutesAccuracy: >99%Sensitivity: 0.3ppbStorage: Room temperatureShelf life: more than 24 months from date of manufacture Specification: 3. 0mm, 4. 0mm, 5. 0mm or according to customers requirements. Packing details: Cassette: 40pcs/box, 50boxes/carton. Strip: 100pcs/bag, 100bags/carton or 100pcs/box, 50boxes/cartonContainer loading:Cassette: 500,000pcs/20FT container. Strip: 1,300,000pcs/20FT containerPlace of origin: China