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            一步法人胱抑素C(Cys-C)酶聯(lián)免疫吸附檢測試劑盒
            ELK005ES
            規(guī)格: 價格:
            48T ¥2240.00
            96T ¥3200.00

            Overview

            Product name: EasyStep Human Cys-C(CystatinC) ELISA Kit
            Reactivity: Human
            Alternative Names: CST3; Cystatin 3; ARMD11; Post-Gamma-Globulin
            Assay Type: Sandwich
            Sensitivity: 25 pg/mL
            Standard: 5000 pg/mL
            Detection Range: 78.1-5000 pg/mL
            Sample Type: Serum, plasma
            Assay Length: 1.5h
            Research Area: Tags & Cell Markers;Cell Biology;Stem Cells;Cardiovascular
            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 Cys-C, and the Human Cys-C 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 Cys-C. After TMB substrate solution is added, only those wells that contain Human Cys-C 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 Cys-C in the samples is then determined by comparing the OD of the samples to the standard curve.

            標準曲線

            Concentration (pg/mL) OD Corrected OD
            5000.00 2.781 2.716
            2500.00 1.701 1.637
            1250.00 0.906 0.842
            625.00 0.508 0.443
            312.50 0.319 0.254
            156.25 0.177 0.113
            78.13 0.120 0.056
            0.00 0.064 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 Cys-C and the recovery rates were calculated by comparing the measured value to the expected amount of Cys-C in samples.
            Matrix Recovery range Average
            serum(n=5) 88-99% 94%
            EDTA plasma(n=5) 102-110% 104%
            Heparin plasma(n=5) 98-104% 101%

            線性

            The linearity of the kit was assayed by testing samples spiked with appropriate concentration of Cys-C 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) 93-106% 88-102% 85-101% 96-107%
            EDTA plasma(n=5) 90-103% 94-108% 90-106% 98-105%
            Heparin plasma(n=5) 91-100% 98-107% 92-108% 93-102%

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