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        一步法人前列腺特異性膜抗原(PSMA)酶聯(lián)免疫吸附檢測試劑盒
        ELK036ES
        規(guī)格: 價格:
        48T ¥2240.00
        96T ¥3200.00

        Overview

        Product name: EasyStep Human PSMA(Prostate specific membrane antigen) ELISA Kit
        Reactivity: Human
        Alternative Names: Cell growth inhibiting protein 27; Cell growth-inhibiting gene 27 protein; FGCP; Folate hydrolase (prostate-specific membrane antigen) 1; Folate hydrolase 1
        Assay Type: Sandwich
        Sensitivity: 0.165 ng/mL
        Standard: 40 ng/mL
        Detection Range: 0.63-40 ng/mL
        Sample Type: Serum, plasma
        Assay Length: 1.5h
        Research Area: Signal Transduction; Cancer; Metabolism
        Uniprot ID: Q04609
        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 PSMA, and the Human PSMA 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 PSMA. After TMB substrate solution is added, only those wells that contain Human PSMA 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 PSMA 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
        40.00 2.164 2.069
        20.00 1.527 1.432
        10.00 1.073 0.978
        5.00 0.821 0.726
        2.50 0.535 0.440
        1.25 0.356 0.261
        0.63 0.257 0.162
        0.00 0.095 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 PSMA and the recovery rates were calculated by comparing the measured value to the expected amount of PSMA in samples.
        Matrix Recovery range Average
        serum(n=5) 90-105% 97%
        EDTA plasma(n=5) 88-102% 95%
        Heparin plasma(n=5) 80-92% 86%

        線性

        The linearity of the kit was assayed by testing samples spiked with appropriate concentration of PSMA 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) 89-101% 87-98% 92-104% 82-96%
        EDTA plasma(n=5) 85-94% 97-106% 79-91% 90-99%
        Heparin plasma(n=5) 85-102% 81-96% 87-105% 83-92%

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