Rat IGF-1 (Insulin-like Growth Factor 1) ELISA Kit (E-EL-R3072)

Name: Rat IGF-1 (Insulin-like Growth Factor 1) ELISA Kit
Brand: Elabscience
SKU: E-EL-R3072
Price: 150.0 USD
Availability: InStock

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Rat IGF-1 (Insulin-like Growth Factor 1) ELISA Kit - 1

Size	Price	Qty
96T	$ 609.00	- +
48T	$ 487.00	- +
24T	$ 150.00	- +
96T*5	Inquire	/
96T*10	Inquire	/

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Product Summary

Sensitivity	1.88 ng/mL
Detection Range	3.13-200 ng/mL
Sample Volume	100 μL
Total Assay Time	3 h 30 min
Reactivity	Rat
Specificity	This kit recognizes IGF-1 in samples.No significant cross-reactivity or interference between IGF-1 and analogues was observed.
Recovery	80%-120%
Sample Type	Serum, plasma and other biological fluids
Detection Method	Colorimetric method, ELISA, Sandwich
Assay Type	Sandwich-ELISA
Size	96T / 48T / 24T / 96T5 / 96T10
Storage	2-8℃
Expiration Date	12 months

Performance

Typical data

The following data was generated by the Quality Control Department, under controlled laboratory conditions (ambient temperature: 18-25 °C, relative humidity: 35-75%) using standardized procedures (TMB reaction at 37 °C in the dark for 15 minutes, followed by termination and OD measurement). These values are provided for reference only. Actual results may vary due to differences in laboratory conditions, operator technique, and equipment. Users are required to generate a standard curve using their own experimental data.

ng/mL	OD1	OD2	Mean OD	Corrected OD
200	2.108	2.178	2.143	2.055
100	1.494	1.462	1.478	1.390
50	0.918	0.942	0.930	0.842
25	0.456	0.464	0.460	0.372
12.5	0.288	0.296	0.292	0.204
6.25	0.177	0.181	0.179	0.091
3.13	0.135	0.135	0.135	0.047
0	0.084	0.092	0.088	-

Precision

Intra-assay Precision (Within-run Precision): Three samples representing low, mid, and high concentrations of Human IL-6 were tested 20 times on a single plate.

Inter-assay Precision (Between-run Precision): Three samples representing low, mid, and high concentrations of Human IL-6 were tested on three separate plates, with 20 replicates per plate, to assess variability among assays.

/	Intra-assay Precision			Inter-assay Precision
Sample	1	2	3	1	2	3
Numbers	20	20	20	20	20	20
Mean（ng/mL）	10.490	20.520	95.650	9.610	20.630	101.920
Standard deviation	0.700	1.370	5.700	0.780	1.650	8.190
CV（%）	6.710	6.670	5.960	8.130	8.000	8.040

Recovery

The recovery of Rat IGF-1 was evaluated by spiking samples at low, mid, and high concentrations across the assay range in various sample matrices.
The assay performance was assessed by comparing the measured concentrations to the expected spiked amounts to determine the percent recovery.

Sample Type	Range （%）	Average Recovery（%）
Cell culture media （n=8）	86-100	92
Serum （n=8）	93-109	101
EDTA plasma （n=8）	96-109	102

Linearity

Linearity of the assay was evaluated by spiking samples with high concentrations of Rat IGF-1 and performing serial dilutions using Standard & Sample Diluent to produce concentrations spanning the assay's dynamic range. The measured values were then compared to the expected concentrations to assess the linearity of response.

/	/	Cell culture media （n=5）	EDTA plasma （n=5）	Serum （n=5）
1:2	Range	90-105	94-109	91-104
1:2	Average	97	100	98
1:4	Range	90-104	94-108	93-105
1:4	Average	96	102	100
1:8	Range	88-102	94-107	92-105
1:8	Average	93	100	99

Stability

Each kit batch is subjected to accelerated stability testing and real-time stability monitoring. Sample performance is evaluated after storage at 37 °C for 10 days to assess the impact of elevated temperature on assay reliability and reagent integrity.

/	Variation range of 37°C mean concentration / 2-8°C mean
Sample 1（n=16）	87.58-107.33
Sample 2（n=16）	94.68-106.70

Test Principle

This ELISA kit uses the Sandwich-ELISA principle. The micro ELISA plate provided in this kit has been pre-coated with an antibody specific to IGF-1 . Standards or samples are added to the micro ELISA plate wells and combined with the specific antibody. Then a biotinylated detection antibody specific for IGF-1 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 IGF-1 , biotinylated detection antibody and Avidin-HRP conjugate will appear blue in color. The enzyme-substrate reaction is terminated by the addition of stop solution and the color turns yellow. The optical density (OD) is measured spectrophotometrically at a wavelength of 450 nm ± 2 nm. The OD value is proportional to the concentration of IGF-1 . You can calculate the concentration of IGF-1 in the samples by comparing the OD of the samples to the standard curve.

Background

IGF1, also named as IBP1, MGF, IGF-IA and Somatomedin-C, belongs to the insulin family. IGF1 is structurally and functionally related to insulin but have a much higher growth-promoting activity. Altered expression or mutation of IGF-1 is associated with several human disorders, including type I diabetes and various forms of cancer. Defects in IGF1 are the cause of insulin-like growth factor I deficiency (IGF1 deficiency) which is an autosomal recessive disorder characterized by growth retardation, sensorineural deafness and mental retardation. The antibody is specific to isoform IGF-1A.