Frequently Asked Questions

General Questions



Can your kits be used for diagnostic purposes?
How many tests can be run with one kit?
Is the assay species-specific?
What kind of samples can be used?
Where can I find the expiration date of my kit?
Do I need to use a standard or standard curve with each assay run?
How can I fit standard curves that are non-linear?
Some of your assay kits are both fluorometric and colorimetric. Which method should I use?
Can I store unused reagents for future use?
Where can I find references of publications using your products?
What is the detection limit (LOD)? What is the difference between it and the limit of quantification (LOQ)?
Why are my readings different from the data on your assay protocol?

Equipment and Accessories



I do not have a plate reader, can I use our spectrophotometer and cuvette instead?
How can I convert the number of tests from the microplate format to cuvette format?
What plates are recommended to use for the assays?
The assay protocol suggests reading at 550-620 nm, but my filter is 540 nm. Can I still run the assay?
Which filter should I use to measure luminescence?

Sample Treatment



My sample is turbid. Can I still use it?
I can not run the assay today. Can samples be frozen?
Should I use serum or plasma samples?
How are cell and tissue samples prepared for assays if it is not described in the data sheet?
How much sample should I use for the assay?

Ordering, Shipping, Receiving and Storage



Do you offer free trial kits or discounts on kits for testing?
How can I order directly from your company?
From the time of order, how soon can I expect to receive the kits?
Do you ship your products on ice?
How can we purchase your products from abroad?
What should I do when I receive the kits?
What discounts are available?



BioAssay Systems is committed to producing innovative, high-quality and cost-effective products
and to providing expert technical service to our valued customers