Product Description
REAGENĀ Ā Diethylstilbestrol ELISA Test Kit is a competitive enzyme immunoassay for the quantitative analysis of diethylstilbestrol in fish,shrimp, meat, milkĀ and urine.
The unique features of the kit are:
- High recovery (80%-120%),rapid, cost-effective extraction methods.
- High sensitivity(0.5 ng/g or ppb) andlimit of quantitationĀ (meat/fish/shrimp 1Ā ppb and milk 0.75ppb).
- A quick ELISA assay (less than 1hours regardless of number of samples).
- High reproducibility.
ProcedureĀ Overview
The method is based on a competitive colorimetric ELISA assay. The DES-BSA has been coated in the plate wells. During the analysis, sample and DESĀ antibody (AntibodyĀ #1) and HRP-Conjugate (HRP-Conjugated Antibody #2) are added to the wells for incubation. If the DESĀ residue is present in the sample, it will compete with the DESĀ on the plate wells for the DESĀ antibody, The secondary antibody, tagged with a peroxidase enzyme, targets the primary antibody that is complexed to the drug coated on the plate wells. The resulting color intensity, after addition of the HRP substrate (TMB), has an inverse relationship with the DESĀ residue concentration in the sample.
Kit Contents, StorageĀ and Shelf Life
REAGENĀ Ā Diethylstilbestrol ELISA Test Kit has the capacity for 96 determinations or testing of 42 samples in duplicate (assuming 12 wells for standards). Return any unused microwells to the foil bag and reseal them with the desiccant provided in the original package. Store the kit at 2-8Ā°C *. The shelf life is 12 months when the kit is properly stored.
Kit Contents | Amount | Storage |
DiethylstilbestrolĀ Coated Plate | 96-well Plate (8wells x 12strips) | 2-8Ā°C |
DiethylstilbestrolĀ Standards:
Negative control (white cap tube) 0.5ng/mL (yellow cap tube) 1.0ng/mL (orange cap tube) 2.0Ā ng/mL (pink cap tube) 4.0ng/mL (purple cap tube) 8.0 ng/mL (blue cap tube) 100 ng/mL (spiking, red cap tube) |
0.8 mL 0.8 mL 0.8 mL 0.8 mL 0.8 mL 0.8 mL 0.8 mL |
2-8Ā°C |
DiethylstilbestrolĀ Antibody #1 | 6mL | 2-8Ā°C * |
Ā HRP-Conjugated Antibody #2 | 6mL | 2-8Ā°C |
20X Wash Solution ** | 28 mL | |
Stop Buffer ** | 12mL | |
TMB Substrate ** | 12 mL | |
10X PBS | 12mL |
*Ā Ā Ā Ā If you are not planning to use the kit for over 3 months, storeĀ Diethylstilbestrol Standards, Antibody #1 and HRP-Conjugated Antibody #2 at -20Ā°C or in a freezer.
Sensitivity (QuantitationĀ Limit)
Sample Type | QuantitationĀ Limit (ng/g or ppb) |
Meat/fish/Shrimp | 1.0 |
Milk | 0.75 |
Urine | 2.5 |
Specificity (Cross-Reactivity)
Analytes | Cross-Reactivity (%) |
Diethylstilbestrol | 100 |
DES-glucuronide | 100 |
Hexestrol | 100 |
Dienestrol | 80 |
DES-dipropionate | 50 |
Estradiol | 45 |
Testerone | <5 |
Salmeterol | <5 |
Ractopamine | <0.01 |
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