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ELK Biotechnology

ELK4247

Rat GPI(Glucose 6 Phosphate Isomerase) ELISA Kit

Rat GPI(Glucose 6 Phosphate Isomerase) ELISA Kit

$458.00 USD
$458.00 USD
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Size
Sensitivity
Detection range

Rat GPI(Glucose 6 Phosphate Isomerase) ELISA Kit

Overview

Product name: Rat GPI(Glucose 6 Phosphate Isomerase) ELISA Kit
Reactivity: Rat
Alternative Names: AMF; NLK; PHI; SA36; Phosphoglucose Isomerase; Autocrine motility factor; Neuroleukin; Phosphohexose isomerase; Sperm antigen 36
Assay Type: Sandwich
Sensitivity: 5.9 pg/mL
Standard: 1000 pg/mL
Range: 15.63-1000 pg/mL
Sample Type: Serum, plasma and other biological fluids.
Assay Length: 3.5h
Research Area: Metabolic pathway;
Test principle: The test principle applied in this kit is Sandwich enzyme immunoassay. The microtiter plate provided in this kit has been pre-coated with an antibody specific to Rat GPI. Standards or samples are added to the appropriate microtiter plate wells then with a biotin-conjugated antibody specific to Rat GPI. Next, Avidin conjugated to Horseradish Peroxidase (HRP) is added to each microplate well and incubated. After TMB substrate solution is added, only those wells that contain Rat GPI, biotin-conjugated antibody and enzyme-conjugated Avidin will exhibit a change in color. The enzyme-substrate reaction is terminated by the addition of sulphuric acid solution and the color change is measured spectrophotometrically at a wavelength of 450nm ± 10nm. The concentration of Rat GPI in the samples is then determined by comparing the OD of the samples to the standard curve.

Standard curve

Concentration (ng/mL) OD Corrected OD
1000.00 1.842 1.741
500.00 1.473 1.372
250.00 1.073 0.972
125.00 0.928 0.827
62.50 0.539 0.438
31.25 0.318 0.217
15.63 0.165 0.064
0.00 0.101 0.000

Precision

Intra-assay Precision (Precision within an assay)：CV%<8%

Three samples of known concentration were tested twenty times on one plate to assess intra-assay precision.

Inter-assay Precision (Precision between assays)：CV%<10%

Three samples of known concentration were tested in forty separate assays to assess inter-assay precision.

Recovery

Matrices listed below were spiked with certain level of recombinant GPI and the recovery rates were calculated by comparing the measured value to the expected amount of GPI in samples.
Matrix Recovery range Average
serum(n=5) 87-99% 93%
EDTA plasma(n=5) 85-97% 91%
Heparin plasma(n=5) 90-103% 96%

Linearity

The linearity of the kit was assayed by testing samples spiked with appropriate concentration of GPI and their serial dilutions. The results were demonstrated by the percentage of calculated concentration to the expected.
Matrix 1:2 1:4 1:8 1:16
serum(n=5) 89-97% 85-94% 79-96% 85-99%
EDTA plasma(n=5) 79-93% 89-97% 85-94% 87-101%
Heparin plasma(n=5) 86-94% 85-95% 89-99% 85-95%
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