Natalizumab ELISA试剂盒(Tysabri)
货号:EL-1611-141
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规格:96 wells
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价格:¥0.00
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品牌:AffinityImmuno
Natalizumab ELISA试剂盒(Tysabri)/那他珠单抗ELISA试剂盒可定量检测Human,mouse,rat的Serum,Plasma样品,最低检出限1.5ng/ml。
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Natalizumab (Tysabri) Pharmacokinetic ELISA Kit
适用物种:Human,mouse,rat
样本类型:Serum,Plasma
检测范围:50ng/ml - 1.56ng/ml
最低检出限:1.5ng/ml
测定时间:2.5 hours
检测格式:Direct sandwich ELISA
检测原理:
The Natalizumab ELISA kit is designed to measure free Natalizumab with high specificity and sensitivity . This assay employs the sandwich enzyme immunoassay technique. A precoated anti-Natalizumab 96 well plate is provided. Calibrator, quality control samples and test samples are pipetted into the appropriate wells. Natalizumab present in biological matrices is bound by the immobilized capture antibody. After washing away any unbound substances, enzyme linked detection antibody is added to the wells. The plate is washed to remove any unbound antibody-enzyme reagent and a substrate solution is added to the wells for color development. The color development is proportional to the amount of Natalizumab present in test samples and the concentration is calculated from the standard series.
检测方法:Peroxidase / OD450
靶抗原:Natalizumab (Tysabri)
应用:Quantification of Natalizumab in biological matrices
包被板类型:Strip
样品体积:15ul
特异性:Natalizumab
检测精度(批内差异,批间差异):<10%, <10%
防腐剂:None
Gene ID:1956
试剂盒组分:
Coated microtiter plate, 96 wells
Calibrator diluent. - 1.8ml
Calibrator 12ul
10X wash buffer - 25ml
Assay buffer - 50ml
1000X detection reagent - 17ul
TMB - 12ml
TMB stop solution - 12ml
Plate sealers - 3
储存温度和稳定性:Stable at -20°C for 1 year
背景描述:
Natalizumab (Tysabri®) is a humanized monoclonal antibody against the cell adhesion molecule α4-integrin used in the treatment of multiple sclerosis and Crohn's disease. Tysabri® and was previously named Antegren®. Natalizumab is administered by intravenous infusion every 28 days and reduces the ability of inflammatory immune cells to attach to and pass through the cell layers lining the intestines and blood– brain barrier.
检测程序:
This assay employs the sandwich enzyme immunoassay technique. Capture antibody is coated onto a 96 well microplate. Calibrator and test samples are pipetted into the appropriate wells. Natalizumab present in biological matrices is bound by the immobilized anti-Natalizumab antibody. After washing away any unbound substances, enzyme linked anti-Natalizumab antibody is added to the wells. The plate is washed to remove any unbound antibody-enzyme reagent and a substrate solution is added to the wells for color development. The color development is proportional to the amount of Natalizumab present in test samples. The color development is stopped and the intensity of the color is measured.
样本收集:
This kit is compatible with EDTA-plasma, heparinplasma and serum samples. Samples can be stored at or below -20°C for up to 1 year.
样品制备:
Dilute calibrators and test samples 1/50 with assay buffer (for example add 5µL of prepared calibrator or sample to 245µL of assay buffer). Mix well. Do not store diluted samples.
试剂制备:
Prepare only the appropriate amount of required reagent on the day of use. Store all reagents as per instructions stated on the label.
1. Wash Buffer (1X) Preparation: Dilute wash buffer concentrate with ultra-pure water 1/10 before use (for example add 20mL concentrate to 180mL ultra-pure water). Mix well.
2. Detection Reagent (1X) Preparation: Dilute detection reagent with assay buffer 1/1000 before use (for example add 11μl concentrate to 11ml of assay buffer). Mix well.
3. Preparation of Calibrators: Prepare calibrators with concentrations ranging from 2500 ng/mL to 78 ng/mL.
结果计算:
1. Construct a standard curve by plotting the absorbance obtained from each standard against concentration. Use a 4 or 5 parameter curve fit. Alternatively a log-log curve fit may be used.
2. The concentration of the unknowns can be read directly from this standard curve using the absorbance value for each sample.
3. Any sample undiluted or diluted still reading greater than the highest standard should be diluted appropriately with assay buffer and retested. If the samples have been diluted, the concentration determined from the standard curve must be multiplied by the dilution factor.
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