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One -Step β-Lactams & Streptomycin & chlorph & Tetracyclines Combo 4 in 1 Rapid Test - Hot Sale

One -Step β-Lactams & Streptomycin & chlorph & Tetracyclines Combo 4 in 1 Rapid Test - Hot Sale

One -Step β-Lactams & Streptomycin & chlorph & Tetracyclines Combo 4 in 1 Rapid Test - Hot Sale
One -Step β-Lactams & Streptomycin & chlorph & Tetracyclines Combo 4 in 1 Rapid Test - Hot Sale

Large Image :  One -Step β-Lactams & Streptomycin & chlorph & Tetracyclines Combo 4 in 1 Rapid Test - Hot Sale Get Best Price

Product Details:
Place of Origin: CHINA
Brand Name: SPAN
Certification: ISO13458
Model Number: β-Lactams
Payment & Shipping Terms:
Minimum Order Quantity: 10 Boxes
Price: Negotiable
Packaging Details: 96 Strips/Box
Delivery Time: within 3-5 working days(depends on your quantity)
Payment Terms: T/T, Western Union, MoneyGram
Detailed Product Description
Specificity: 100% Sensitivity: 100%


This kit is based on the specific reaction of antibody-antigen and immunochromatography. β-lactams, streptomycin, chlorph, 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.



This kit is used for rapid qualitative analysis of β-lactams , streptomycin, chlorph, tetracyclines in raw milk sample.




β-lactams MRL(μg/L) LOD(μg/L) β-lactams MRL(μg/L) LOD(μg/L)
penicillin G 4 2-3 nafcillin 30 14-16
ampicillin 4 3-4 Cephapirin 60 20
amoxicillin 4 3-4 cefoperazone 50 4-5
oxacillin 30 5-6 cefalonium 20 3-4
cloxacillin 30 4-5 cefquinome 20 10-12
dicloxacillin 30 4-5 Cephacetrile 125 35-40
Tetracyclines MRL(μg/L) LOD(μg/L) Aminoglycoside MRL(μg/L) LOD(μg/L)
tetracycline 100 6-8 streptomycin 125 15-20
oxytetracycline 100 10-12 Dihydrostreptomycin Sulphate 200 15-20
doxycycline 100 18-20 Chloramphencol MRL(μg/L) LOD(μg/L)
chlortetracycline 100 4-6 chloramphencol 0 0.2-0.3


1. 12×plastic canister each containing 8 microwells and 8 strips

2. 96×pipettes

3. Microwell holder, 1pcs

4. Product Manual



Metal incubator



(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) Preheat the metal incubator to 45℃.

(4) Place the mircrowells in the metal incubator, 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.

(5) Incubate for 3min in the metal incubator (45℃); insert the test strips into the wells with the "Absorbent pad" end fully dipped in to the mixture.

(6) Incubate for 6min in the metal incubator(45℃) again. Take out the strip; judge the result according to Part 7.



There are 5 lines in the strip, Control line, Tetracylcines Line, chlorph Line, Streptomycin Line and ßeta-lactams Line, which are briefly used as “C”, “T4” ,“T3”, “T2” and “T1”. The test results will depend on the color of these lines. The following diagram describes the result identification.

Negative(-) : Line T and Line C are both red, color of Line T is stronger than or similar to Line C, indicating the corresponding residue in sample is less than LOD of the kit.

Positive(+) : Line C is red, color of Line T is weaker than Line C, indicating the corresponding residue in sample is higher than LOD of the kit.

Invalid: Line C has no color, which indicates the strips are invalid. In this case, please read the instructions again, and redo the assay with new strip.

One -Step β-Lactams & Streptomycin & chlorph & Tetracyclines Combo 4 in 1 Rapid Test - Hot Sale 0



Note: If the result of the strip needs to be recorded, please cut the "Absorbent pad" end, and dry the strip, then keep it as file.



The product shows negative at the level of 500μg/L of melamine, lincomycin, erythromycin, Sulfamethazine etc



All materials must be stored at 2 - 8°C. The test kit is stable through the expiration date (12 months) marked on the foil pouch. Do not store the test kit in direct sunlight.



-For best results, please strictly adhere to these instructions.

-All reagents must be at room temperature before running the assay.

-Do not remove rapid test from its pouch until immediately before use.

-The milk sample should be fresh and homogeneous liquid without caking and precipitation.

-Do not reuse the test strip.

-Do not use the test beyond its expiration date.

-Do not use water, powdered milk as negative control. Use confirmed negative fresh milk as control.

-The components in this kit have been quality control tested as standard batch unit. Do not mix components from different lot numbers.



β-Lactams & Streptomycin & chlorph & Tetracyclines Combo Test Kit is an useful tool offering a rapid and accurate testing in field screening, exceeding with its convenience. If you want a quantitative result, it is suggested to apply other method such as ELISA / HPLC in practice.




Rebecca Yan
Product Manager
Span Biotech Ltd.
Tel: +86(755)89589611
Cell Phone:+8618823462100(WhatsApp)





Contact Details

Contact Person: Ms. Anna Lee

Tel: +86-755-89589611

Fax: 86-755-89580096

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