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        一步法人胰島素樣生長因子結合蛋白1(IGFBP1)酶聯(lián)免疫吸附檢測試劑盒
        ELK079ES
        規(guī)格: 價格:
        48T ¥1960.00
        96T ¥2800.00

        Overview

        Product name: EasyStep Human IGFBP1(Insulin Like Growth Factor Binding Protein 1) ELISA Kit
        Reactivity: Human
        Alternative Names: IBP1; AFBP; IGF-BP25; PP12; Placental Protein 12; Amniotic Fluid Binding Protein; Alpha-Pregnancy-Associated Endometrial Globulin; Growth Hormone Independent-Binding Protein
        Assay Type: Sandwich
        Sensitivity: 0.54 ng/mL
        Standard: 200 ng/mL
        Detection Range: 3.13-200 ng/mL
        Sample Type: Serum, plasma
        Assay Length: 1.5h
        Research Area: Tumor immunity;Endocrinology;Cardiovascular biology;
        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 IGFBP1, and the Human IGFBP1 standard plate wells that pre-coated using protein-related techniques are provided separately. Standard/Sample Diluent Buffer or samples are added to the appropriate microtiter plate wells ,then added a HRP-conjugated antibody specific to Human IGFBP1. After TMB substrate solution is added, only those wells that contain Human IGFBP1 and HRP-conjugated antibody 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 IGFBP1 in the samples is then determined by comparing the OD of the samples to the standard curve.

        標準曲線

        Concentration (ng/mL) OD Corrected OD
        200.00 2.052 1.964
        100.00 1.579 1.491
        50.00 1.142 1.054
        25.00 0.836 0.748
        12.50 0.539 0.451
        6.25 0.315 0.227
        3.13 0.215 0.127
        0.00 0.088 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 IGFBP1 and the recovery rates were calculated by comparing the measured value to the expected amount of IGFBP1 in samples.
        Matrix Recovery range Average
        serum(n=5) 86-99% 92%
        EDTA plasma(n=5) 89-103% 96%
        Heparin plasma(n=5) 83-97% 90%

        線性

        The linearity of the kit was assayed by testing samples spiked with appropriate concentration of IGFBP1 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) 86-100% 93-108% 80-101% 87-96%
        EDTA plasma(n=5) 87-102% 96-105% 85-93% 89-97%
        Heparin plasma(n=5) 95-104% 87-96% 88-101% 82-95%

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