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        大鼠淀粉樣蛋白β1-40(Ab1-40)酶聯(lián)免疫吸附檢測試劑盒
        ELK1494
        規(guī)格: 價(jià)格:
        48T ¥1960.00
        96T ¥2800.00

        Overview

        Product name: Rat Ab1-40(Amyloid Beta Peptide 1-40) ELISA Kit
        Reactivity: Rat
        Alternative Names: Amyloid Beta Peptide 1-40
        Assay Type: Sandwich
        Sensitivity: 4.84 pg/mL
        Standard: 1000 pg/mL
        Detection Range: 15.63-1000 pg/mL
        Sample Type: Serum, plasma and other biological fluids
        Assay Length: 3.5h
        Research Area: Infection immunity;Neuro science;
        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 Ab1-40. Standards or samples are added to the appropriate microtiter plate wells then with a biotin-conjugated antibody specific to Rat Ab1-40. 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 Ab1-40, 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 Ab1-40 in the samples is then determined by comparing the OD of the samples to the standard curve.

        標(biāo)準(zhǔn)曲線

        Concentration (pg/mL) OD Corrected OD
        1000.00 1.933 1.839
        500.00 1.525 1.431
        250.00 1.028 0.934
        125.00 0.899 0.805
        62.50 0.601 0.507
        31.25 0.345 0.251
        15.63 0.196 0.102
        0.00 0.094 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 Ab1-40 and the recovery rates were calculated by comparing the measured value to the expected amount of Ab1-40 in samples.
        Matrix Recovery range Average
        serum(n=5) 93-107% 100%
        EDTA plasma(n=5) 87-99% 93%
        Heparin plasma(n=5) 85-99% 92%

        線性

        The linearity of the kit was assayed by testing samples spiked with appropriate concentration of Ab1-40 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) 85-97% 90-99% 82-101% 93-105%
        EDTA plasma(n=5) 82-95% 88-102% 84-97% 89-107%
        Heparin plasma(n=5) 95-105% 82-95% 81-97% 93-105%
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