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            高半胱氨酸(HCy)酶聯(lián)免疫吸附檢測試劑盒
            ELK8121
            規(guī)格: 價格:
            48T ¥1960.00
            96T ¥2800.00

            Overview 文獻

            Product name: HCy(Homocysteine) ELISA Kit
            Reactivity: General
            Alternative Names: Homocysteine
            Assay Type: Competitive Inhibition
            Sensitivity: 39.55 ng/mL
            Standard: 8000 ng/mL
            Detection Range: 125-8000 ng/mL
            Sample Type: serum, plasma and other biological fluids
            Assay Length: 2h
            Research Area: atherosclerosis
            Test principle: This assay employs the competitive inhibition enzyme immunoassay technique. The microtiter plate provided in this kit has been pre-coated with HCy protein. Standards or samples are added to the appropriate microtiter plate wells then with a biotin-conjugated antibody specific to HCy. 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 HCy 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
            8000.00 0.235
            4000.00 0.433
            2000.00 0.786
            1000.00 0.959
            500.00 1.275
            250.00 1.579
            125.00 1.835
            0.00 2.375

            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 HCy and the recovery rates were calculated by comparing the measured value to the expected amount of HCy in samples.
            Matrix Recovery range Average
            serum(n=5) 82-95% 88%
            EDTA plasma(n=5) 85-97% 91%
            Heparin plasma(n=5) 95-107% 91%

            線性

            The linearity of the kit was assayed by testing samples spiked with appropriate concentration of HCy 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) 86-97% 83-96% 95-107% 82-96%
            EDTA plasma(n=5) 81-94% 93-107% 93-102% 91-105%
            Heparin plasma(n=5) 92-106% 83-94% 85-98% 85-97%
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