Human TNF-α (Tumor Necrosis Factor Alpha) CLIA Kit

Human TNF-α (Tumor Necrosis Factor Alpha) CLIA Kit

Detection Range	7.81-500 pg/mL
Sensitivity	4.69 pg/mL

Product Details

Properties

Assay type	Sandwich-CLIA
Format	96T
Assay time	3.5h
Detection range	7.81-500 pg/mL
Sensitivity	4.69 pg/mL
Sample type &Sample volume	serum, plasma and other biological fluids; 100μL
Specificity	This kit recognizes Human TNF-α in samples. No significant cross-reactivity or interference between Human TNF-α and analogues was observed.
Reproducibility	Both intra-CV and inter-CV are < 15%.
Application	This CLIA kit applies to the in vitro quantitative determination of Human TNF-α concentrations in serum, plasma and other biological fluids.

 

Test Principle

This CLIA kit uses the Sandwich-CLIA principle. The micro CLIA plate provided in this kit has been pre-coated with an antibody specific to Human TNF-α. Standards or samples are added to the micro CLIA plate wells and combined with the specific antibody. Then a biotinylated detection antibody specific for Human TNF-α and Avidin-Horseradish Peroxidase (HRP) conjugate are added successively to each micro plate well and incubated. Free components are washed away. The substrate solution is added to each well. Only those wells that contain Human TNF-α, biotinylated detection antibody and Avidin-HRP conjugate will appear fluorescence. The Relative light unit (RLU) value is measured by the Chemiluminescence immunoassay analyzer. The RLU value is positively associated with the concentration of Human TNF-α. You can calculate the concentration of Human TNF-α in the samples by comparing the RLU value of the samples to the standard curve.

 

Kit Components and Storage

An unopened kit can be stored at 2-8℃ for 1 month. If the kit is not supposed to be used within 1 month, store the components separately according to the following conditions once the kit is received.

Item	Specifications	Storage
Micro CLIA Plate(Dismountable)	96T: 8 wells ×12 strips 48T: 8 wells ×6 strips	-20℃, 6 months
Reference Standard	96T: 2 vials 48T: 1 vial
Concentrated Biotinylated Detection Ab (100×)	96T: 1 vial, 120 μL 48T: 1 vial, 60 μL
Concentrated HRP Conjugate (100×)	96T: 1 vial, 120 μL 48T: 1 vial, 60 μL	-20℃(Protect from light), 6 months
Reference Standard & Sample Diluent	1 vial, 20 mL	2-8°C, 6 months
Biotinylated Detection Ab Diluent	1 vial, 14 mL
HRP Conjugate Diluent	1 vial, 14 mL
Concentrated Wash Buffer (25×)	1 vial, 30 mL
Substrate Reagent A	1 vial, 5 mL	2-8℃(Protect from light)
Substrate Reagent B	1 vial, 5 mL
Plate Sealer	5 pieces
Manual	1 copy
Certificate of Analysis	1 copy

 

Technical Data:

Precision

Intra-assay Precision (Precision within an assay): 3 samples with low, mid range and high level Human TNF-α were tested 20 times on one plate, respectively.
Inter-assay Precision (Precision between assays): 3 samples with low, mid range and high level Human TNF-α were tested on 3 different plates, 20 replicates in each plate.

	Intra-assay Precision	Inter-assay Precision
Sample	1	2	3	1	2	3
n	20	20	20	20	20	20
Mean (pg/mL)	25.60	58.03	169.01	27.58	54.45	158.50
Standard deviation	2.69	5.50	13.54	2.46	6.40	14.99
CV (%)	10.51	9.48	8.01	8.92	11.75	9.46

 

 Recovery

The recovery of Human TNF-α spiked at three different levels in samples throughout the range of the assay was evaluated in various matrices.

Sample Type	Range (%)	Average Recovery (%)
Serum(n=8)	100-113	107
EDTA plasma(n=8)	92-103	98
Cell culture media(n=8)	87-101	92

Target Information

Assay Procedures