Purospher? RP-18 HC is excellently suitable for high resolution separation of explosives and related compounds. The determination of explosives is of great importance, including the quantification of their by products like nitrotoluene and nitrophenol, as well as nitroaminotoluene and ami-notoluene. Purospher? RP-18 HC is also suitable for the separation of picric acid from hexyl and ethyleneglycol dinitrate from ethyleneglycol nitrate.