Steroids Negative

*Although we no longer maintain a ready-to-order stock of this control, we offer Steroids Negative Synthetic Serum Controls on a made-to-order basis through our Custom QC program.  There are a high number of potentially interfering compounds present in serum which are often encountered during methods development for quantitating steroids. Many of these interferences are eliminated by utilizing a synthetic matrix. It is advantageous to have a steroid control in a synthetic serum matrix to verify calibration curves and a steroid serum control.