The strips have been tested on serum, plasma, urine, and milk samples.
Very dark pink indicates that the diluted sample concentration is greater than 1500 mg/L Urea. To obtain a more accurate concentration, the sample should be further diluted and retested. For example, if the sample was tested undiluted, try diluting 5× or 10×.
We offer exact volume transfer pipettes as an accessory. For samples requiring a 2× dilution, order the 20 µL transfer pipettes (TP20). For samples requiring a 31× dilution, order the 300 µL transfer pipettes (TP300) and the 20 µL transfer pipettes (TP20).
Yes, unused reagents can be stored according to the assay protocol. The strips should be kept in a dry, cool location and protected from light.
If the strip is still yellow, but is known to have urea present in it, this could mean that the sample was diluted too much and no longer can be detected by the strips. Another possibility is that something in the sample is interfering with the strip reaction. Samples that are very acidic may interfere with the strip reaction and should be greatly diluted or avoided if possible.
Zhang, X., Guo, K., Xia, F., Zhao, X., Huang, Z., & Niu, J. (2018). FGF23 C-tail improves diabetic nephropathy by attenuating renal fibrosis and inflammation. BMC biotechnology, 18(1), 33. Assay: Ureain mouse urine.
To find more recent publications, please click here.
If you or your labs do not have the equipment or scientists necessary to run this assay, BioAssay Systems can perform the service for you.
– Fast turnaround
– Quality data
– Low cost
Please email or call 1-510-782-9988 x 2 to request assay service.
For orders of 10 or more kits, please call +1-510-782-9988×1 or email us for best pricing and/or bulk order.
Orders are shipped the same day if placed by 2pm PST
Delivery: 2-5 days (US)
Storage: RT upon receipt
Technical support provided by the very scientists that develop the assays.
Products are extensively tested and validated prior to release so researchers need little-to-no time for assay optimization.
Because we develop and manufacture the products, our prices are lower than competitors on the market
With over 200 different products, acquire all your assay kit needs in one order.
Products used by clients worldwide with distributors in over 60 countries.