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Life Sciences
Immunoassay Basics
Understanding the basic principles of immunoassays is easy. The essential components of antibody-based immunoassay systems are threefold: an antigen that…
Tue, Jul 18, 2023
Detection Methods for Immunoassays
The immunological part of an immunoassay ends typically with either a wash or separation step. In these steps, any unbound…
Tue, Jul 18, 2023
What is actually being stained in the nucleolus by the Nucleolar-ID™ Green Detection Reagent?
We use an RNA binding dye and this has been validated. However, in the context of live cells we cannot…
Tue, Jul 18, 2023
What kind of instrumentation is required to read a CLIA assay?
A plate luminometer is necessary to read the RLU (relative light units) generated by these assays. It is not necessary…
Tue, Jul 18, 2023
When is it appropriate to use a CLIA instead of an EIA?
A CLIA, or chemiluminescent immunoassay, is more sensitive than an EIA (enzyme immunoassay) and is used when samples contain very…
Tue, Jul 18, 2023
Why are my ODs different than those shown in the instruction manual?
It is normal to see a small variation in OD values between experiments. OD values can be affected by small…
Tue, Jul 18, 2023
What is the best way to analyze my data? What is 4-PL curve-fitting?
For the most accurate results we recommend that 4 parameter logistic (4-PL) curve fitting software be used. The object of…
Tue, Jul 18, 2023
Can you explain why I am seeing inconsistent standard curves run in culture media?
Often times, the serum supplemented into media can be problematic. In order to minimize this problem it is very important…
Tue, Jul 18, 2023
What is the minimum recommended dilution for samples? Can I dilute less?
This is the minimum dilution required to eliminate matrix interference in the assay. In general, this data is collected using…
Tue, Jul 18, 2023
How do I know if I need to dilute or extract my samples?
If your samples contain analyte levels within the dynamic range of the assay at the minimum recommended dilution for your…
Tue, Jul 18, 2023