The Anti-Ocrelizumab Antibody (ADA) ELISA Kit (SKU: GXEL00414) is a quantitative sandwich ELISA for the measurement of Anti-Ocrelizumab Antibody (ADA) in plasma, serum. The assay has a detection range of 7.81 - 500 ng/mL and a sensitivity of 3.66 ng/mL.
This assay employs the quantitative sandwich enzyme immunoassay technique. Ocrelizumab has been pre-coated onto a microplate. Standards or samples are pipetted into the wells and any Anti-Ocrelizumab present is bound by the immobilized antibody. After washing away any unbound substances, a biotin-labeled Ocrelizumab is added to the wells. After washing away any unbound substances, Streptavidin-HRP is added to the wells. Following a wash to remove any unbound enzyme reagent, a substrate solution is added to the wells and color develops in proportion to the amount of Anti-Ocrelizumab bound in the initial step. The color development is stopped and the intensity of the color is measured.
Product Name:
Anti-Ocrelizumab Antibody (ADA) ELISA Kit
SKU:
GXEL00414
Size:
96 Assays
Reactivity:
Human, Mouse
Assay Type:
Sandwich
Detection Method:
Colorimetric (450 nm)
Sensitivity:
3.66 ng/mL
Range:
7.81 - 500 ng/mL
Precision:
Intra-assay CV ≤ 8.45%; inter-assay CV ≤ 14.75%
Recovery:
99-104% (average, by sample type and dilution)
Sample Type:
Plasma, Serum
UniProt:
P08637, P11836, P19437, P22646
Storage:
2-8°C for 12 months.
Stability:
When the kit was stored at the recommended temperature for 12 months, the signal intensity decreased by less than 30%. For unopened kits, if you want to prolong the storage time, please store the Standard, Detection A, Detection B and Microplate at - 20 °C, the rest reagents should be store at 4°C.
Note:
For Research Use Only. Not for diagnostic procedures.
Precision:
Intra 1
Intra 2
Intra 3
Inter 1
Inter 2
Inter 3
n
16
16
16
24
24
24
Mean (ng/mL)
292.33
64.67
14.44
299.87
56.35
14.54
Standard deviation
24.71
3.99
1.13
44.22
6.66
1.42
CV (%)
8.45
6.17
7.85
14.75
11.81
9.78
Recovery:
Sample
Dilution
Average (%)
Range (%)
Human serum (n=4)
1:10
104
90-114
Human serum (n=4)
1:20
99
85-113
Linearity:
Sample
Dilution
Average (%)
Range (%)
Human serum (n=3)
1:2
93
81-100
Human serum (n=3)
1:4
107
99-114
Human serum (n=3)
1:8
111
102-117
Human serum (n=3)
1:16
98
87-106
Note: The below protocol is a sample protocol. Protocols are specific to each batch/lot. For the correct instructions please follow the protocol included in your kit.
Step
Procedure
1
Preparation: Bring all reagents and samples to room temperature and prepare reagents, working standards and samples as directed. Assay all standards and samples in duplicate.
2
Standard & Sample Incubation: Add 100 µL standard or samples to each well; incubate for 1 hour at 37 °C. Wash 3 times with Wash Buffer (300 µL).
3
Detection: Add 100 µL of Detection A (working solution) to each well; incubate for 1 hour at 37 °C. Add 100 µL of Detection B (working solution) to each well; incubate for 30 minutes at 37 °C. Wash 5 times with Wash Buffer (300 µL).
4
Color Development: Add 100 µL of Color Reagent to each well; incubate for 15 minutes at 37 °C; protect from light.
5
Stop & Read: Add 50 µL of Stop Solution to each well, then read the optical density at 450 nm within 10 minutes (correction 630 nm or 620 nm).
Sample Type
Protocol
Serum
Use a serum separator tube (SST) and allow samples to clot for 30 minutes at room temperature before centrifugation for 15 minutes at 1000 x g. Remove serum and assay immediately or aliquot and store samples at ≤ -20°C. Avoid repeated freeze-thaw cycles.
Plasma
Collect plasma using EDTA, heparin, or citrate as an anticoagulant. Centrifuge for 15 minutes at 1000 x g within 30 minutes of collection. Assay immediately or aliquot and store samples at ≤ -20°C. Avoid repeated freeze-thaw cycles.
Other Sample Types
For more information about how to process other sample types, (e.g., body fluids, breast milk & more), please contact our Tech Support Team at techsupport@assaygenie.com.
