Human GA(Glycated Albumin) ELISA Kit
Specification: Price:
48 T $320.00
96 T $458.00


Product name: Human GA(Glycated Albumin) ELISA Kit
Reactivity: Human
Alternative Names: Glycated Albumin,GA
Assay Type: Competitive Inhibition
Sensitivity: 5.16 pmol/mL
Standard: 1000 pmol/mL
Range: 15.63-1000 pmol/mL
Sample Type: serum, plasma
Assay Length: 2h
Research Area: diabetic nephropathy
Test principle: This assay employs the competitive inhibition enzyme immunoassay technique. The microtiter plate provided in this kit has been pre-coated with Glycated Albumin(GA) protein. Standards or samples are added to the appropriate microtiter plate wells then with a biotin-conjugated antibody specific to Glycated Albumin(GA). Next,Avidin conjugated to Horseradish Peroxidase (HRP) is added to each microplate well and incubated. After TMB substrate solution is added. 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 Glycated Albumin(GA) 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 0.227
500.00 0.310
250.00 0.557
125.00 0.846
62.50 1.139
31.25 1.565
15.63 1.761
0.00 2.375


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.


Matrices listed below were spiked with certain level of recombinant GA and the recovery rates were calculated by comparing the measured value to the expected amount of GA in samples.
Matrix Recovery range Average
serum(n=5) 88-99% 93%
EDTA plasma(n=5) 80-97% 88%
Heparin plasma(n=5) 82-95% 91%


The linearity of the kit was assayed by testing samples spiked with appropriate concentration of GA 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) 86-97% 88-95% 79-93% 89-97%
EDTA plasma(n=5) 92-105% 83-92% 89-98% 85-94%
Heparin plasma(n=5) 85-94% 87-103% 97-105% 79-90%