Purchase of Imtakt Liquid Chromatography Columns

The Center for Disease Control and Prevention (CDC) is seeking to purchase Imtakt Liquid Chromatography Columns from Herman-Robbins, LLC (dba Imtakt USA). The columns are required for assays that detect and measure antiretroviral drugs in biological specimens. The CDC intends to award a sole source purchase order due to the proprietary nature of the columns and the need for exact column chemistry to maintain the validity and continuity of the program's existing assays. • The required columns are Imtakt Unison UK-C-18 and Cadenza HS-C18 liquid chromatography columns. • The columns are consumable items depleted through routine use in assays. • The assays were developed and validated specifically using these column products. • Substituting a different column could alter retention time, resolution, and reproducibility, requiring costly and time-prohibitive revalidation.