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库存 ： 1000
供应商 ： 上海钰博
检测限 ： 见说明书
检测方法 ： 酶联免疫
应用 ： 科研
标记物 ： 见说明书
样本 ： 血清/组织/尿液
适用生物 Homo sapiens (Human，人)β2-微球蛋白(β2M)检测试剂盒
检测范围 0.391-25ng/mL 灵敏度 0.18ng/mL
样本类型 Serum, plasma, urine and other biological fluids.
实验时长 4.5h 实验方法 双抗夹心法
规格 96T
β2-微球蛋白(β2M)检测试剂盒
ELISA Kit for Beta-2-Microglobulin (b2M)
FOR IN VITRO AND RESEARCH USE ONLY, NOT FOR USE IN CLINICAL DIAGNOSTIC PROCEDURES!
| Organism species | Homo sapiens (Human) |
| Product No. | SEA260Hu |
| Sample type | Serum, plasma, urine and other biological fluids. |
| Format | 96T |
| Assay length | 4.5 hours |
| Detection range | 0.391-25ng/mL The standard curve concentrations used for the ELISA’s were 25ng/mL, 12.5ng/mL, 6.25ng/mL, 3.125ng/mL, 1.563ng/mL, 0.781ng/mL, 0.391ng/mL |
| Sensitivity | The minimum detectable dose of this kit is typically less than 0.18ng/mL. |
Specificity
This assay has high sensitivity and excellent specificity for detection of Beta-2-Microglobulin (b2M).
No significant cross-reactivity or interference between Beta-2-Microglobulin (b2M) and analogues was observed.
No significant cross-reactivity or interference between Beta-2-Microglobulin (b2M) and analogues was observed.
Recovery
Matrices listed below were spiked with certain level of recombinant Beta-2-Microglobulin (b2M) and the recovery rates were calculated by comparing the measured value to the expected amount of Beta-2-Microglobulin (b2M) in samples.
| Matrix | Recovery range (%) | Average(%) |
| serum(n=5) | 93-101 | 98 |
| EDTA plasma(n=5) | 84-96 | 91 |
| heparin plasma(n=5) | 98-105 | 102 |
Precision
β2-微球蛋白(β2M)检测试剂盒Intra-assay Precision (Precision within an assay): 3 samples with low, middle and high level Beta-2-Microglobulin (b2M) were tested 20 times on one plate, respectively.
Inter-assay Precision (Precision between assays): 3 samples with low, middle and high level Beta-2-Microglobulin (b2M) were tested on 3 different plates, 8 replicates in each plate.
CV(%) = SD/meanX100
Intra-Assay: CV<10%
Inter-Assay: CV<12%
Inter-assay Precision (Precision between assays): 3 samples with low, middle and high level Beta-2-Microglobulin (b2M) were tested on 3 different plates, 8 replicates in each plate.
CV(%) = SD/meanX100
Intra-Assay: CV<10%
Inter-Assay: CV<12%
Linearity
The linearity of the kit was assayed by testing samples spiked with appropriate concentration of Beta-2-Microglobulin (b2M) and their serial dilutions. The results were demonstrated by the percentage of calculated concentration to the expected.
| Sample | 1:2 | 1:4 | 1:8 | 1:16 |
| serum(n=5) | 84-92% | 84-93% | 94-105% | 84-98% |
| EDTA plasma(n=5) | 83-97% | 82-99% | 88-96% | 98-105% |
| heparin plasma(n=5) | 81-94% | 99-105% | 92-101% | 82-95% |
Stability
The stability of kit is determined by the loss rate of activity. The loss rate of this kit is less than 5% within the expiration date under appropriate storage condition.
To minimize extra influence on the performance, operation procedures and lab conditions, especially room temperature, air humidity, incubator temperature should be strictly controlled. It is also strongly suggested that the whole assay is performed by the same operator from the beginning to the end.
To minimize extra influence on the performance, operation procedures and lab conditions, especially room temperature, air humidity, incubator temperature should be strictly controlled. It is also strongly suggested that the whole assay is performed by the same operator from the beginning to the end.
Reagents and materials provided
| Reagents | Quantity | Reagents | Quantity |
| Pre-coated, ready to use 96-well strip plate | 1 | Plate sealer for 96 wells | 4 |
| Standard | 2 | Standard Diluent | 1×20mL |
| Detection Reagent A | 1×120µL | Assay Diluent A | 1×12mL |
| Detection Reagent B | 1×120µL | Assay Diluent B | 1×12mL |
| TMB Substrate | 1×9mL | Stop Solution | 1×6mL |
| Wash Buffer (30 × concentrate) | 1×20mL | Instruction manual | 1 |
Assay procedure summary
1. Prepare all reagents, samples and standards;
2. Add 100µL standard or sample to each well. Incubate 2 hours at 37oC;
3. Aspirate and add 100µL prepared Detection Reagent A. Incubate 1 hour at 37oC;
4. Aspirate and wash 3 times;
5. Add 100µL prepared Detection Reagent B. Incubate 30 minutes at 37oC;
6. Aspirate and wash 5 times;
7. Add 90µL Substrate Solution. Incubate 15-25 minutes at 37oC;
8. Add 50µL Stop Solution. Read at 450nm immediately.
2. Add 100µL standard or sample to each well. Incubate 2 hours at 37oC;
3. Aspirate and add 100µL prepared Detection Reagent A. Incubate 1 hour at 37oC;
4. Aspirate and wash 3 times;
5. Add 100µL prepared Detection Reagent B. Incubate 30 minutes at 37oC;
6. Aspirate and wash 5 times;
7. Add 90µL Substrate Solution. Incubate 15-25 minutes at 37oC;
8. Add 50µL Stop Solution. Read at 450nm immediately.
Test principle
β2-微球蛋白(β2M)检测试剂盒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 Beta-2-Microglobulin (b2M). Standards or samples are then added to the appropriate microtiter plate wells with a biotin-conjugated antibody specific to Beta-2-Microglobulin (b2M). 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 Beta-2-Microglobulin (b2M), 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 Beta-2-Microglobulin (b2M) in the samples is then determined by comparing the O.D. of the samples to the standard curve.
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