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        人饑餓素(GHRL)酶聯(lián)免疫吸附檢測(cè)試劑盒
        ELK4080
        規(guī)格: 價(jià)格:
        48T ¥1960.00
        96T ¥2800.00

        Overview 文獻(xiàn)

        Product name: Human GHRL(Ghrelin) ELISA Kit
        Reactivity: Human
        Alternative Names: MTLRP; Preproghrelin; Growth Hormone Secretagogue Receptor Ligand; Appetite-regulating hormone; Growth hormone-releasing peptide; Motilin-related peptide
        Assay Type: Competitive Inhibition
        Sensitivity: 22.8 pg/mL
        Standard: 5000 pg/mL
        Detection Range: 78.13-5000 pg/mL
        Sample Type: Serum, plasma and other biological fluids.
        Assay Length: 2h
        Research Area: Endocrinology;
        Uniprot ID: Q9UBU6
        Test principle: This assay employs the competitive inhibition enzyme immunoassay technique. The microtiter plate provided in this kit has been pre-coated with Human GHRL protein. Standards or samples are added to the appropriate microtiter plate wells then with a biotin-conjugated antibody specific to Human GHRL. Next, Avidin conjugated to Horseradish Peroxidase (HRP) is added to each microplate well and incubated. After TMB substrate solution is added. 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 GHRL 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
        5000.00 0.215
        2500.00 0.310
        1250.00 0.567
        625.00 0.878
        312.50 1.169
        156.25 1.585
        78.13 1.733
        0.00 2.028

        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 GHRL and the recovery rates were calculated by comparing the measured value to the expected amount of GHRL in samples.
        Matrix Recovery range Average
        serum(n=5) 83-97% 90%
        EDTA plasma(n=5) 89-103% 96%
        Heparin plasma(n=5) 86-99% 97%

        線性

        The linearity of the kit was assayed by testing samples spiked with appropriate concentration of GHRL 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) 95-103% 87-98% 85-92% 79-96%
        EDTA plasma(n=5) 86-95% 85-96% 89-100% 85-96%
        Heparin plasma(n=5) 85-92% 97-105% 92-101% 85-92%
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