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Beta-lactams and Tetracyclines combo rapid test kits for milk/rapid test strip
1. The test principle
This kit is based on the specific reaction of antibody-antigen and immunochromatography. β-lactams and tetracyclines antibiotics in the sample compete for the antibody with the antigen coated on the membrane of the test strip. Then after a color reaction, the result can be observed.
2.Applications
This kit is used for rapid qualitative analysis of β-lactams and tetracyclines in milk sample.
3.Kit component
| 8-well strip and 8 test strip in one bottle | 12bottles/kit |
| Kit insert | 1 pcs |
| microwell holder | 1 pcs |
| Plastic pipette | 96 pcs |
4.Detection limit
MRL(μg/L) | LOD(μg/L) | Cephalosporins | MRL(μg/L) | LOD(μg/L) | |
penicillin G | 4 | 1.5-2 | cefquinome | 20 | 20-30 |
4 | 3-4 | cefacetrile | 125 | 40 | |
4 | 4-5 | cefalonium | 20 | 5-10 | |
30 | 6-8 | ceftriaxone | - | 100 | |
30 | 6-8 | cefoperazone | 50 | 40-50 | |
dicloxacillin | 30 | 6-8 | cephapirin | 60 | 20 |
nafcillin | 30 | 20-30 | ceftiofur | 100 | 90-100 |
Tetracyclines | MRL(μg/L) | LOD(μg/L) | Tetracyclines | MRL(μg/L) | LOD(μg/L) |
tetracycline | 100 | 40-60 | doxycycline | 100 | 40-60 |
oxytetracycline | 100 | 80-100 | chlortetracycline | 100 | 40-60 |
Product image of Beta-lactams and Tetracyclines test kit

5.Assay steps
(1)Read the instructions carefully before experiment. Bring the test kit and samples to room temperature. Milk samples should be fully liquid without any agglomeration or deposition.
(2)Take bottles needed from the kit package, take out required wells and strips, and make proper marks. Please use these test strips within 1h. Seal the cap of the bottles. The rest strips can be stored for future use.
(3)Take 200ul of the test samples into the wells, then repeatedly absorb and drop for 5 times to mix the sample with the reagent in the wells completely. The mixture should be pink, and then start the timer.
(4)Incubate for 5min at room temperature (25oC); insert the test strips into the wells with the "MAX" end fully dipped in to the mixture.
(5) Incubate for 5min at room temperature again. Take out the strip; judge the result.


6.Test results
There are 3 lines in the strip, Control line, Beta-lactams Line and Tetracylcines Line, which are briefly used as “C”, “B” and “T”. The test results will depend on the color of these lines. The following diagram describes the result identification.
Negative: Control line, B Line and T Line are all red;
Beta-lactams Positive: Control Line is red, B Line has no color;
Tetracyclines Positive: Control Line is red, T Line has no color;
Beta-lactams and Tetracyclines Positive: Control Line is red; B Line and T Line have no color;
Please notice: Control line is used as a quality indicator, which will always appear regardless of the B/T line. If Control line does NOT appear, this indicates that the result is invalid. Users please check the kit insert again and re-do the assay with new test strips.
7.Storage
2-8℃ in cool dark place, do not freeze. The kit will be valid in 12 months.
Ailsa Wang
Email: wangna(at)kwinbon.com.
Wechat:wn2014012209
Skype/WhatsApp: +86 15231118512
Company: Beijing Kwinbon Biotechnology Co.,Ltd


Payment Terms
All orders are to be 100% prepaid in advance. We accept bank transfer, western union, etc.
Shipment
All products from Kwinbon Biotech will be shipped by DHL, TNT, UPS or Fedex according to the customer's requirement.
Package
The kits will be packed in foam box with ice package.





Certificate
ISO9001: 2008 & ISO13485: 2003;
UKAS (United Kingdom Accreditation Service);
CNAS (China National Accreditation Service for Conformity Assessment);
CQC (China Quauty Certification Center);
CE (Communate Europpene).
Awards
High-Tech Enterprise;
Key High-Tech Enterprise of China Torch Program;
Beijing Engineering Research Center;
Industrialization Demonstration Project of China Torch Program;
Beijing Science and Technology Award;
Tianjin Science and Technology Award;
Shandong Science and Technology Award;





Beijing Kwinbon Biotechnology Co., Ltd is a professional manufacturer and distributor of rapid test kits for food and feed safety located in Zhongguan-cun Science Park, Beijing, China.
For the last 16 years, Kwinbon Biotech participated actively in the R&D of rapid test kits, including enzyme linked immuno-assays and immunochromatographic strips. With the innova-tive biotechnology and creative ideas, Kwinbon Biotech is able to provide more than 100 kinds of ELISAs and Strips for food and feed safety screening.
The company has professional analytical laboratory, GMP factory and SPF animal house. Research, devel-opment and marketing are integrated in the company, where we gather information from the clients and pro-vide them with sophisticated diagnostic products and detection tools.
Kwinbon has complete analytical laboratories with high level instrument and technicians. We have HPLC, GC, LC-MS/MS for test result calibration, which are expected to provide better quality control of our test products.
The company has achieved quality management certifi-cates of ISO9001:2008, ISO13485:2003 and credit cer-tificate of AAAzc+ by Zhongguancun Science Park.
To meet the need of the customers, the company also distributes products from international brands with a va-riety of immunodiagnostic area, including microbiology, veterinary and animal health care.
Q1. Can I get the full catalog from your side ?
A1: Yes, please send your request to the official email.
Q2. Is Kwinbon a big company or a small company ?
A2: Kwinbon established in 2002 and now is China's Largest and strongest company in food safety products field. Kwinbon has more than 500 empolyees and 4 branch companies.
Kwinbon has over 10,000 square meters R&D laboratories, SPF animal house, and GMP factory. The R&D lab is equipped with instrument like GC, HPLC, LC-MS/MS. We also have 17 local sales offices.
Q3. Is Kwinbon professional ?
A3: Kwinbon has established close collaborations with China CDC, Association of Food Science and Technology, Chinese Academy of Agriculture Science, National Institute of Food Quality Supervision and Inspection, China Agricultural University. Among the staffs, there are more than 500 employees, including 18 doctors, 92 masters and 24 senior engineers. And also 46% of the employees are working on R&D.
Q4. Is Kwinbon certificated ?
A4: Kwinbon passed " ISO9001:2008 " and " ISO13485:2003";
Kwinbon also won the "2011 Fobes China Best SEMs" certificates;
Kwinbon won about 100 patents in food safety detection field.
Q5. How is the QC ?
A5: Kwinbon has about 20 professional technicals in QC dept and we will do 3 times STRICT QC for every batch of products.
Q6. Payment terms ?
A6: 100% T/T in advance, L/C, Western Union.
Q7. Lead time ?
A7: For the order less than 10boxes: within 3 workdays after the full payment;
For the order more than 10boxes: within 5 workdays after the full payment;
For the contract order more than 200boxes: Date indicated by the customer.
Q8. Delivery.
A8: Your own express carieer agent is accpet, we also provide DHL/TNT/UPS/Fedex delivery service, you can refer to your local express company for the delivery period.
Q9. Customs clearance.
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