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        小鼠β淀粉樣蛋白1-42(Ab1-42)酶聯(lián)免疫吸附檢測試劑盒
        ELK4915
        規(guī)格: 價格:
        48T ¥1960.00
        96T ¥2800.00

        Overview 文獻(xiàn)

        Product name: Mouse Ab1-42(Amyloid Beta Peptide 1-42) ELISA Kit
        Reactivity: Mouse
        Alternative Names: Amyloid beta 42(ABeta 42); amyloid beta peptide 1-42; Aβ1-42,amyloid βpeptide 1-42
        Assay Type: Sandwich
        Sensitivity: 2.64 pg/mL
        Standard: 500 pg/mL
        Detection Range: 7.82-500 pg/mL
        Sample Type: serum, plasma and other biological fluids
        Assay Length: 3.5h
        Research Area: 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 Mouse Ab1-42. Standards or samples are added to the appropriate microtiter plate wells then with a biotin-conjugated antibody specific to Mouse Ab1-42. 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 Mouse Ab1-42, 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 Mouse Ab1-42 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
        500.00 2.045 1.956
        250.00 1.643 1.554
        125.00 1.243 1.154
        62.50 0.826 0.737
        31.25 0.457 0.368
        15.63 0.355 0.266
        7.82 0.221 0.132
        0.00 0.089 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 Ab1-42 and the recovery rates were calculated by comparing the measured value to the expected amount of Ab1-42 in samples.
        Matrix Recovery range Average
        serum(n=5) 83-92% 85%
        EDTA plasma(n=5) 84-108% 98%
        Heparin plasma(n=5) 87-96% 92%

        線性

        The linearity of the kit was assayed by testing samples spiked with appropriate concentration of Ab1-42 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) 93-101% 86-92% 81-93% 79-95%
        EDTA plasma(n=5) 85-94% 79-96% 98-105% 82-93%
        Heparin plasma(n=5) 95-102% 93-101% 97-105% 95-103%
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