The USGS/DOI is conducting market research to identify small businesses capable of serving as an independent laboratory to prepare a protocol and perform a GLP-compliant HPLC-DAD analytical method validation for quantifying antimycin A in multiple matrices. Part 1 requires a single analyst to validate the HPLC-DAD instrument method and create separate standard calibration curves for antimycin A homologs A1, A2, A3, and A4 using standards prepared three times. Part