Product description
This ELISA kit is rapid, quantitative enzyme-linked immunosorbent assays (ELISA) for the determination of Dexamethasone content in Food samples.
Key features
Assay Range: 0.02 ppb~1.62 ppb
Sensitivity: 0.02 ppb (ng/mL)
Species reactivity: Universal
Assay time: 75min
Result type: Quantitative
Category: Residues&contaminants
Kit type: ELISA
Detection type: Competitive
Precision: CV<10%
Recovery rate: 90%±30%
Specificity:
Dexamethasone | 100% | ||||
Triamcinolone | 52% | ||||
Prednisolone | 14% | ||||
Betamethasone | 24% | ||||
Hydrocortisone | 1.5% |
Detection limits:
Chicken, duck, pork, egg | 0.3 ppb | ||||
Raw milk, reconstituted milk | 0.1 ppb | ||||
Finished milk, yoghurt | 0.2 ppb | ||||
Pork liver, chicken liver | 0.5 ppb |
Storage and shelf life
The kit should be stored at 2~8°C and must not be frozen. The shelf life of this product is 1 year. Do not use the kit beyond the expiration date.
Test principle
This assay employs the competitive inhibition enzyme immunoassay technique. The kit consists of an enzyme-labeled plate pre-coated with coupled antigens, horseradish enzyme markers, antibodies, standard substances, and other supporting reagents. During detection, standard substances or sample solutions are added. Dexamethasone in the samples competes with the pre-coated coupled antigens on the enzyme-labeled plate for Dexamethasone specific antibody. After adding the enzyme markers, TMB substrate is used for color development. The absorbance value of the sample is negatively correlated with the content of Dexamethasone it contains, and the residual amount of Dexamethasone in the sample can be obtained by comparing with the standard curve.
Materials supplied
Item | Quantity | ||||
Assay Plate | 96T | ||||
Standard | 6 x 1.5 mL | ||||
Concentrated sample diluent | 1 x 30 mL | ||||
HRP Conjugate | 1 x 12 mL | ||||
Antibody | 1 x 7 mL | ||||
TMB Substrate Reagent (A\B) | 2 x 7 mL | ||||
Stop Solution | 1 x 7 mL | ||||
Wash Buffer (20×) | 1 x 25 mL | ||||
Plate Sealer | 1 piece | ||||
Instruction Manual | 1 piece | ||||
Sealed Bag | 1 copy |
Standard curve reference
Standard | 1 | 2 | 3 | 4 | 5 | 6 | |||
Concentration (ppb=ng/mL=ng/g) | 0 | 0.02 | 0.06 | 0.18 | 0.54 | 1.62 | |||
OD Standard | 1.979 | 1.512 | 0.967 | 0.426 | 0.152 | 0.061 |
