Ractopamine rapid test strips

Ractopamine rapid test strip
Catalog No. LSY-20002

1. Brief
This product is used for testing Ractopamine residue in urine and tissue sample. The total test time only need 5~60 min. Easy to operate, high sensitivity.

2. Detection limit
Urine: 5ng/ml (5ppb)
Tissue: 3ng/ml (3ppb)

3. Specifications: 50 tests/kit

4. Principle
The Ractopamine rapid test strip is an immuno-chromatographic test, using colloidal gold immunoassay method. It relies on the competition between Ractopamine residues in the sample and the Ractopamine on T line, to the limited amount of dye-antibody. As a sufficient amount of drug in the sample is presenting, the drug will saturate the antibody. Consequently, it will show an extremely light or even invisible T line, indicating a positive result. On the other hand, if there is a negative sample (or the amount of the drug is lower than the minimum detectable concentration), it will generate two obvious lines in both the T and C line section.

5. Contents
1) Test cassette 50 piece
2) Manual 1 piece
3) Dropper 50 pieces
4) Desiccant 1 piece/bag
5) Disposable gloves 3 pieces

6. Sample preparation
6.1 Urine
Directly take the clear, fresh and unpolluted urine to test.
(Notice: Do not test urine immediately after cold storage. Urine sample must be collected in a clean, dry plastic urine cup without any preservatives or in glass container. If urine is muddy, centrifuge at 4000 r/min at room temperature for 5 min, then test. If the urine can not be tested on time, store urine at 2～8 ℃ for 24 hours, for long-term storage, store at -20℃, avoid repeated freezing and thawing samples.)
6.2 Tissue
Weigh 5±0.05g tissue, add 5g Na2SO4, then add 5ml Acetonitrile, shake for 3min; centrifuge at 4000 r/min for 10 min, take 4ml supernatant to another clean container, blow to dry with air or nitrogen at 56 ℃, add 0.3 mL Triple-distilled water to redissolve, shake and mix it for 1min. Take the solution to test directly.