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人b2微球蛋白(BMG/b2-MG)酶聯(lián)免疫吸附檢測(cè)試劑盒
ELK1200
規(guī)格: 價(jià)格:
48T ¥1680.00
96T ¥2400.00

Overview 文獻(xiàn)

Product name: Human BMG/b2-MG(Beta-2-Microglobulin) ELISA Kit
Reactivity: Human
Alternative Names: Beta 2M; BMG; B2MG; b2M; Beta-2-Microglobulin
Assay Type: Sandwich
Sensitivity: 0.16 ng/mL
Standard: 25 ng/mL
Detection Range: 0.4-25 ng/mL
Sample Type: serum, plasma, urine and other biological fluids
Assay Length: 3.5h
Research Area: Infection immunity;Kidney biomarker;
Uniprot ID: P61769
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 Human BMG/b2-MG. Standards or samples are added to the appropriate microtiter plate wells then with a biotin-conjugated antibody specific to Human BMG/b2-MG. 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 Human BMG/b2-MG, 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 Human BMG/b2-MG in the samples is then determined by comparing the OD of the samples to the standard curve.

標(biāo)準(zhǔn)曲線

Concentration (ng/mL) OD Corrected OD
25.00 2.201 2.117
12.50 1.593 1.509
6.25 1.121 1.037
3.13 0.892 0.808
1.57 0.547 0.463
0.79 0.345 0.261
0.40 0.265 0.181
0.00 0.084 0.000

精密度

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.

回收率

Matrices listed below were spiked with certain level of recombinant BMG/b2-MG and the recovery rates were calculated by comparing the measured value to the expected amount of BMG/b2-MG in samples.
Matrix Recovery range Average
serum(n=5) 78-91% 84%
EDTA plasma(n=5) 88-101% 94%
Heparin plasma(n=5) 82-95% 88%

線性

The linearity of the kit was assayed by testing samples spiked with appropriate concentration of BMG/b2-MG 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) 88-105% 79-93% 87-98% 85-96%
EDTA plasma(n=5) 88-97% 97-105% 81-93% 89-102%
Heparin plasma(n=5) 88-102% 81-96% 86-93% 82-95%
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