Shenzhen Wensidun Technology Co., Ltd. |
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Beta Lactams and Tetracyclines Combo Rapid Test Kit 96 Tests/Kit
for Milk
1. Brief
The Beta-Lactams and Tetracyclines Combo rapid test strip, based on
Colloidal gold immunochromatography assay method, is used for
testing β-lactam antibiotics and Tetracyclines residue in milk and
goat milk quickly.
2. Specifications
(1) 8 microwells and 8 dipsticks in one bottle 12 bottles / kit.
(2) Instruction 1 piece
3. Principle
The β-lactam and Tetracyclines Combo rapid test strip is based on
competitive inhibition immuno-chromatographic principle. When the
antibiotics residue in sample is higher than or equal to the
detection limit, it will combine with labeled antibody, then
inhibit the combination between colloidal gold antibody coated
antigen on T line, making T line lighter than C line or T line
invisible or T line has same color with C line. Otherwise, T line
is darker than C line. No matter whether there is antibiotics
residue in sample, C line is visible.
4. Detection limit
Name | Detection Limit (ppb) | Name | Detection Limit (ppb) |
Penicillin G | 2~4 | Cefazolin | 40~50 |
Amoxicillin | 2~3 | Cephalonium | 8~10 |
Ampicillin | 2~3 | Cefacetrile | 20~30 |
Oxacillin | 5~7 | Cefoperazone | 3~5 |
Cloxacillin | 4~6 | Cephapirin | 8~10 |
Piperacillin | 6~8 | Ceftiofur | 60~100 |
Nafcillin | 15~25 | Tetracycline | 10~15 |
Dicloxacillin | 6~8 | Oxytetracycline | 5~10 |
Cefquinome | 8~15 | Chlortetracycline | 5~10 |
Cefalotin | 30~40 | Doxycycline | 15~20 |
5. Operation procedures
1) Read the instructions carefully before testing, and return the
test strips and milk samples to room temperature before use.
2) Aspirate 200ul milk sample into the microwell, suck 5~10 times
until the sample and the reagent in the microwell are evenly mixed,
and there is no solid by visual inspection.
3) The first step is to incubate at 40°C [recommended, if there is
no incubator, room temperature (25°C) incubation is also possible],
time 5min;
4) Insert the test strip into the microwell, with one end of MAX
facing down, incubate the second step at 40°C [recommended, if
there is no incubator, room temperature (25°C) incubation is also
possible], time 5min
5) Take out the test strip from the microwell and judge the result.
6. Test Result Interpretation
Color depth comparison of T line and C line | Result judgment | Result analysis |
T line > C line | Negative | antibiotics residue is lower than detection limit in sample |
T line = C line | Weak positive | antibiotics residue is equal to detection limit in sample |
T line < C line or T line is invisible | Positive | antibiotics residue is higher than detection limit in sample |
C line is invisible | Invalid | The test dipstick is invalid, test again |
7. Results picture show
8. Precautions
1) This product is suitable for pure milk of cattle and sheep and
raw milk.
2) Test dipsticks and micro-wells are disposable,do not use test
dipsticks out of date.
3) Please seal the bottle after taking out required test dipsticks.
If can not use all 8 microwells at once, cup the rest and put it
back to bottle and sealed.
4) Do not touch the white membrane surface in the middle of test
dipsticks, avoid sunlight and fan blowing directly.
5) Store milk sample in cold, no more than 3 days.
6) Milk samples should be fully liquid without any agglomeration,
sour and precipitation. Stir milk sample to even before test.
7) For milk sample with high fat content, chromatography is slow,
recommending extension the second step for another 1 min.
8) Use the test dipsticks testing again for positive results.
9. Specificity
This product has no cross-reaction with Quinolones, Sulfonamides,
Chloramphenicol and Melamine etc.
10.Storage and expiry date
Storage: 2-8 ℃ sealed, dry, protected from light, not frozen.
Expiry date: 12 months; production date is on the box.
Q1: When will it be shipped?
A1: We will ship the goods for you as soon as possible within 7
working days after receiving the payment. (In the event of the
epidemic and other external factors, there may be delays in
shipping)
Q2: Does it support OEM/ODM?
A2: It can be supported, but the specific quantity needs to be more
than 100,000 pieces to facilitate customized products.
Q3: How is your factory doing in terms of quality control?
A3: We have ISO9001 and ISO13485 certified by the state. Our
production process is in accordance with the standard process,
which can ensure that the quality of the products is optimal.
Q4: How is after-sales service provided?
A4: We provide professional online technical after-sales service.
We can provide you with one-on-one guidance in the form of video,
phone calls, etc.
Q5: What is the payment method?
A5: We receive payment by T/T.
Q6: How to ship?
A6: By obtaining quotations from our many cooperative carriers,
choose the best way to ship for you, or you can ship according to
your requirements.