Profile: Spex Sampleprep, LLC supplies sample preparation products & certified reference materials & standards for inorganic and organic spectroscopy & chromatography. We offer a full line of BPA and phthalate standards that can be used to test everything from your plastic bottles & toys to drinking water. Our new Kryo-Tech™ accessories offers solution for preserving proteins & nucleic acids during grinding in the Geno/Grinder®. We also offer cryogenic impact grinder with self contained liquid nitrogen tub and insulated case.