Inorganic Ventures' 1000 ppm Praseodymium for ICP is a certified reference material set in a nitric acid matrix for stability. This praseodymium standard is Traceable to NIST and manufactured in accordance with our stringent Quality Assurance guidelines. One year Expiration Date . …

Inorganic Ventures' 1000 ppm Praseodymium for AA is a certified reference material set in a nitric acid matrix for stability. This praseodymium standard is Traceable to NIST and manufactured in accordance with our stringent Quality Assurance guidelines. One year Expiration Date . …