CLIA Kit for Thyroxine (T4)
Size: 96T
Catalogue Number: UCCA452Ge-96
Citations, Manuals and MSDS Available upon request.
Target: Thyroxine (T4)
Alternative Names: 3,5,3',5'-Tetraiodothyronine; L-Thyroxine; Levothyroxine
Target Species: General species
Detection range: 1.17-300ng/mL
Sensitivity: 0.44ng/mL
Featured Series Function: Detects small molecule
Recommended/Predicted Sample Types: Serum, Plasma and other Biological Fluids
Assay Time: 2h
Method: Chemiluminescence
Specificity: Reactive with General species T4 / Thyroxine
Detection principle: Competitive Inhibition
Sample Size: 50uL
Assay Precision: Intra-Assay: CV<10%, Inter-Assay: CV<12%
Storage: 4°C for 1 month/ -20°C for long-term(One year within shelf life)
Shelf-life: 12 months
Specificity: This assay has high sensitivity and excellent specificity for detection of Thyroxine (T4).
No significant cross-reactivity or interference between Thyroxine (T4) and analogues was observed.
Precision: Intra-assay Precision (Precision within an assay): 3 samples with low, middle and high level Thyroxine (T4) were tested 20 times on one plate, respectively.
Inter-assay Precision (Precision between assays): 3 samples with low, middle and high level Thyroxine (T4) were tested on 3 different plates, 8 replicates in each plate.
CV(%) = SD/meanX100
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.
Assay procedure summary: 1. Prepare all reagents, samples and standards;
2. Add 50µL standard or sample to each well.
And then add 50µL prepared Detection Reagent A immediately.
Shake and mix. Incubate 1 hour at 37°C;
3. Aspirate and wash 3 times;
4. Add 100µL prepared Detection Reagent B. Incubate 30 minutes at 37°C;
5. Aspirate and wash 5 times;
6. Add 100µL Substrate Solution. Incubate 10 minutes at 37°C;
7. Read RLU value immediately.
Test principle: The microplate provided in this kit has been pre-coated with a monoclonal antibody specific to Thyroxine (T4). A competitive inhibition reaction is launched between biotin labeled Thyroxine (T4) and unlabeled Thyroxine (T4) (Standards or samples) with the pre-coated antibody specific to Thyroxine (T4). 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 Thyroxine (T4) 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 Thyroxine (T4) level in the sample or standard.
Research Area: Endocrinology; Hormone metabolism;
Research Use Only