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        人幾丁質(zhì)酶3樣蛋白1(CHI3L1)酶聯(lián)免疫吸附檢測(cè)試劑盒
        
                    ELK0405
                    
        
                        
        
                            
        
                                規(guī)格：
                                價(jià)格：
                            
        
                                                        
        
                                48T
                                ￥2240.00
                            
        
                                                        
        
                                96T
                                ￥3200.00
                            
        
                                                    
        
                    
        
                    
                
        
            
        
        
        

                
        
            
        
                
        Overview
                    文獻(xiàn)
        
                
        
                    
        
                        
        
                            
        
                                
        
                                    
        
                                        Product name:
                                        Human CHI3L1(Chitinase-3-Like Protein 1) ELISA Kit
                                    
        
                                                                            
        
                                            Reactivity:
                                            Human
                                        
        
                                                                                
        
                                            Alternative Names:
                                            YKL-40; Chondrocyte protein 40
                                        
        
                                                                                
        
                                           Assay Type:
                                           Sandwich
                                           
                                        
        
                                                                                
        
                                           Sensitivity:
                                           18.1 pg/mL
                                           
                                        
        
                                                                                
        
                                           Standard:
                                           4000 pg/mL
                                           
                                        
        
                                                                                
        
                                           Detection Range:
                                           62.5-4000 pg/mL
                                           
                                        
        
                                                                                
        
                                           Sample Type:
                                           Serum, plasma, tissue homogenates and other biological fluids.
                                           
                                        
        
                                                                                
        
                                           Assay Length:
                                           3.5h
                                           
                                        
        
                                                                                
        
                                           Research Area:
                                           Metabolic pathway;
                                           
                                        
        
                                                                                
        
                                           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 CHI3L1. Standards or samples are added to the appropriate microtiter plate wells then with a biotin-conjugated antibody specific to Human CHI3L1. Next, Avidin conjugated to Horseradish Peroxidase (HRP) is added to each microplate well and incubated. After TMB substrate solution is added, only those wells that contain Human CHI3L1, biotin-conjugated antibody and enzyme-conjugated Avidin 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 CHI3L1 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
                                                            
        
                                                        
        
                                4000.00
                                2.266
                                                                2.170
                                                            
        
                                                        
        
                                2000.00
                                1.527
                                                                1.431
                                                            
        
                                                        
        
                                1000.00
                                1.251
                                                                1.155
                                                            
        
                                                        
        
                                500.00
                                0.865
                                                                0.769
                                                            
        
                                                        
        
                                250.00
                                0.453
                                                                0.357
                                                            
        
                                                        
        
                                125.00
                                0.312
                                                                0.216
                                                            
        
                                                        
        
                                62.50
                                0.206
                                                                0.110
                                                            
        
                                                        
        
                                0.00
                                0.096
                                                                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 CHI3L1 and the recovery rates were calculated by comparing the measured value to the expected amount of CHI3L1 in samples.
        
                    
        
                        
        
                            
        
                                Matrix
                                Recovery range
                                Average
                            
        
                            
        
                                serum(n=5)
                                90-105%
                                97%
                            
        
                            
        
                                EDTA plasma(n=5)
                                80-95%
                                87%
                            
        
                            
        
                                Heparin plasma(n=5)
                                83-95%
                                89%
                            
        
                        
        
                    
        
                
        
            
        
                        
        
                
        線性
        
                
        
                    
        The linearity of the kit was assayed by testing samples spiked with appropriate concentration of CHI3L1 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)
                                85-97%
                                87-96%
                                82-95%
                                92-105%
                            
        
                            
        
                                EDTA plasma(n=5)
                                80-101%
                                87-96%
                                96-105%
                                95-103%
                            
        
                            
        
                                Heparin plasma(n=5)
                                95-104%
                                82-96%
                                92-105%
                                83-92%
                            
        
                        
        
                    
        
                
        
            
        
                    
        
    
        
    




        
    
        
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