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SKU(재고 관리 코드):LMA950Hu
Magnetic Luminex Assay Kit for Von Willebrand Factor Cleaving Protease (vWFCP) ,etc.
Magnetic Luminex Assay Kit for Von Willebrand Factor Cleaving Protease (vWFCP) ,etc.
Product No.
LMA950Hu
Organism Species
Homo sapiens (Human).
Sample Type
Serum, plasma and other biological fluids
Test Method
Double-antibody Sandwich
Assay Length
3.5h
Detection Range
0.02-20ng/mL
Sensitivity
The minimum detectable dose of this kit is typically less than 0.007 ng/mL.
UOM
1Plex 2Plex 3Plex 4Plex 5Plex 6Plex 7Plex 8Plex
Specificity
This assay has high sensitivity and excellent specificity for detection of Von Willebrand Factor Cleaving Protease (vWFCP) ,etc..
No significant cross-reactivity or interference between Von Willebrand Factor Cleaving Protease (vWFCP) ,etc. and analogues was observed.
Recovery
Matrices listed below were spiked with certain level of recombinant Von Willebrand Factor Cleaving Protease (vWFCP) ,etc. and the recovery rates were calculated by comparing the measured value to the expected amount of Von Willebrand Factor Cleaving Protease (vWFCP) ,etc. in samples.
| Matrix | Recovery range (%) | Average(%) |
| serum(n=5) | 79-103 | 89 |
| EDTA plasma(n=5) | 80-93 | 89 |
| heparin plasma(n=5) | 79-91 | 87 |
| sodium citrate plasma(n=5) | 91-99 | 95 |
Precision
Intra-assay Precision (Precision within an assay): 3 samples with low, middle and high level Von Willebrand Factor Cleaving Protease (vWFCP) ,etc. were tested 20 times on one plate, respectively.
Inter-assay Precision (Precision between assays): 3 samples with low, middle and high level Von Willebrand Factor Cleaving Protease (vWFCP) ,etc. 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 Von Willebrand Factor Cleaving Protease (vWFCP) ,etc. 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) | 79-97% | 98-105% | 84-92% | 97-105% |
| EDTA plasma(n=5) | 82-101% | 85-93% | 87-95% | 99-105% |
| heparin plasma(n=5) | 89-96% | 89-96% | 83-101% | 90-97% |
| sodium citrate plasma(n=5) | 98-105% | 85-99% | 81-96% | 97-105% |
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.
Reagents and materials provided
| Reagents | Quantity | Reagents | Quantity |
| 96-well plate | 1 | Plate sealer for 96 wells | 4 |
| Pre-Mixed Standard | 2 | Standard Diluent | 1×20mL |
| Pre-Mixed Magnetic beads (22#:vWFCP) | 1 | Analysis buffer | 1×20mL |
| Pre-Mixed Detection Reagent A | 1×120μL | Assay Diluent A | 1×12mL |
| Detection Reagent B (PE-SA) | 1×120μL | Assay Diluent B | 1×12mL |
| Sheath Fluid | 1×10mL | Wash Buffer (30 × concentrate) | 1×20mL |
| Instruction manual | 1 |
Assay procedure summary
1. Preparation of standards, reagents and samples before the experiment;
2. Add 100μL standard or sample to each well,
add 10μL magnetic beads, and incubate 90min at 37°C on shaker;
3. Remove liquid on magnetic frame, add 100μL prepared Detection Reagent A. Incubate 60min at 37°C on shaker;
4. Wash plate on magnetic frame for three times;
5. Add 100μL prepared Detection Reagent B, and incubate 30 min at 37°C on shaker;
6. Wash plate on magnetic frame for three times;
7. Add 100μL sheath solution, swirl for 2 minutes, read on the machine.
| Magazine | Citations |
| 33 | Neutrophil Protease Cleavage of Von Willebrand Factor in Glomeruli - An Anti-thrombotic Mechanism in the Kidney. pubmed:28139439 |
| Experimental and Therapeutic Medicine | Risk stratification and prognostic evaluation of endothelial cell‑specific molecule1, von Willebrand factor, and a disintegrin‑like and metalloprotease with … |
| Scientific Reports | Association between Upper-airway Surgery and Ameliorative Risk Markers of endothelial function in obstructive Sleep Apnea Pubmed: 31882827 |
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