When you click on links to various merchants on this site and make a purchase, this can result in this site earning a commission. Affiliate programs and affiliations include, but are not limited to, the eBay Partner Network.
Detects XYL in concentrations above 1000 ng/mL, ensuring that you can identify even low levelsof XYL. This indicates a preliminary positive result for this specific drug. Preliminary positive results must be sent to a lab for confirmation.
When you click on links to various merchants on this site and make a purchase, this can result in this site earning a commission. Affiliate programs and affiliations include, but are not limited to, the eBay Partner Network.