Chloramphenicol (CAP) ELISA Kit

This assay is based on the competitive enzyme immunoassay for the detection of CAP in the sample. The coupling antigens are pre-coated on the micro-well stripes. The CAP in the sample and the coupling antigens pre-coated on the micro-well stripes compete for the anti-CAP antibodies. After the addition of the enzyme conjugate, the TMB substrate is added for coloration. The optical density (OD) value of the sample has a negative correlation with the CAP in it. This value is compared to the standard curve and the CAP concentration is subsequently obtained.
 

Chloramphenicol (CAP) is an antibiotic useful for the treatment of a number of bacterial infections. It is a bacteriostatic and became available in 1949. It is considered a prototypical broad-spectrum antibiotic, alongside the tetracyclines, and as it is both cheap and easy to manufacture it is frequently an antibiotic of choice in the developing world. Chloramphenicol, also known as chlornitromycin, is effective against a wide variety of Gram-positive and Gram-negative bacteria, including most anaerobic organisms. Due to resistance and safety concerns, it is no longer a first-line agent for any infection in developed nations, with the notable exception of topical treatment of bacterial conjunctivitis. Nevertheless, the global problem of advancing bacterial resistance to newer drugs has led to renewed interest in its use. In low-income countries, chloramphenicol is still widely used because it is inexpensive and readily available.
 

Reagents	Quantity	Reagents	Quantity
Assay plate (96 Wells)	1	Instruction manual	1
Standard	6 x 1 mL	Redissolving Solution (concentrate 2 x)	2 x 20 mL
Antibody	1 x 6 mL	HRP-Conjugate	1 x 11 mL
Wash Buffer (concentrate 20 x)	2 x 20 mL	Stop Solution	1 x 6 mL
Substrate A	1 x 6 mL	Substrate B	1 x 6 mL
Adhesive Films	4

 

 

Sample Type	Number	Recovery range (%)	Average(%)
Serum	10	90-101	96
EDTA plasma	10	89-97	93
Heparin plasma	10	91-99	95

 

Intra-assay Precision (Precision within an assay) Three samples of known concentration were tested twenty times on one plate to assess intra-assay precision. Inter-assay Precision (Precision between assays) Three samples of known concentration were tested in forty separate assays to assess inter-assay precision. CV (%) = SD/meanX100 Intra-Assay: CV<8% Inter-Assay: CV<12%
 

Sample Type	1：2	1：4	1：8	1：16
Serum	78-89%	81-99%	92-103%	95-105%
EDTA plasma	91-101%	90-98%	93-101%	91-98%
Heparin plasma	92-103%	93-102%	92-99%	91-101%

 

The stability of ELISA kit is determined by the loss rate of activity. The loss rate of this kit is less than 5% within the expiration date under appropriate storage condition. The loss rate was determined by accelerated thermal degradation test. Keep the kit at 37°C for 4 and 7 days, and compare O.D.values of the kit kept at 37°C with that of at recommended temperature. (referring from China Biological Products Standard, which was calculated by the Arrhenius equation. For ELISA kit, 4 days storage at 37°C can be considered as 6 months at 2 - 8°C, which means 7 days at 37°C equaling 12 months at 2 - 8°C).
 

Store at 2-8°C. Please refer to Instruction Manual.
 

Store at 2-8°C. Please refer to Instruction Manual.