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CLIA Kit for Free Thyroxine (fT4)

CAT: 0338-TRV-048657-01Size: 24 TestsDry Ice: NoHazardous: No
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CAT#:0338-TRV-048657-01Size:24 Tests
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24/48H Stock Items & 2 to 6 Weeks non Stock Items.
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Product Name Alternative
FTI
Applications
Chemiluminescent immunoassay for Antigen Detection.
Assay Principle
The microplate provided in this kit has been pre-coated with a monoclonal antibody specific to Free Thyroxine (fT4) . A competitive inhibition reaction is launched between biotin labeled Free Thyroxine (fT4) and unlabeled Free Thyroxine (fT4) (Standards or samples) with the pre-coated antibody specific to Free Thyroxine (fT4) . After incubation the unbound conjugate is washed off. Next, avidin conjugated to Horseradish Peroxidase (HRP) is added to each microplate well and incubated. The amount of bound HRP conjugate is reverse proportional to the concentration of Free Thyroxine (fT4) in the sample. Then the mixture of substrate A and B is added to generate glow light emission kinetics. Upon plate development, the intensity of the emitted light is reverse proportional to the Free Thyroxine (fT4) level in the sample or standard.
Assay Protocol
1. Prepare all reagents, samples and standards;
2. Add 50µ L standard or sample to each well.
        And then add 50µ L prepared Detection Reagent A immediately.
        Shake and mix. Incubate 1 hour at 37° C;
3. Aspirate and wash 3 times;
4. Add 100µ L prepared Detection Reagent B. Incubate 30 minutes at 37° C;
5. Aspirate and wash 5 times;
6. Add 100µ L Substrate Solution. Incubate 10 minutes at 37° C;
7. Read RLU value immediately.
Assay Performance Time
2h
Sample Type
Serum, plasma, tissue homogenates, cell lysates, cell culture supernates and other biological fluids
Detection Range
781.25-200,000fg/mL
Precision
Intra-assay Precision (Precision within an assay) : 3 samples with low, middle and high level Free Thyroxine (fT4) were tested 20 times on one plate, respectively. Inter-assay Precision (Precision between assays) : 3 samples with low, middle and high level Free Thyroxine (fT4) were tested on 3 different plates, 8 replicates in each plate. CV (%) = SD/meanX100 Intra-Assay: CV Inter-Assay: CV Inter-Assay: CV
Sensitivity
The minimum detectable dose of this kit is typically less than 272.41fg/mL
Stability
The stability of 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. To minimize extra influence on the performance, operation procedures and lab conditions, especially room temperature, air humidity, incubator temperature should be strictly controlled. It is also strongly suggested that the whole assay is performed by the same operator from the beginning to the end.
Format
48T, 96T, 96Tx5, 96Tx10, 96Tx100
Specificity
This assay has high sensitivity and excellent specificity for detection of Free Thyroxine (fT4) . No significant cross-reactivity or interference between Free Thyroxine (fT4) and analogues was observed.
Product Name Synonym
Free Thyroxine
Method
Competitive Inhibition
Organism Species
Pan-species (General)

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