High Purity Standards offers two lines of solid standards (food and non-food), designed to address the need for standards in natural matrices. These standards are derived from materials that have been collected, dried, ground, blended and tested. At least two different analytical techniques were used to certify these standards for major and trace elements. Data for additional digestion techniques, such as EPA-3050, are included for most. Details on the elements certified in these products can be found on High Purity's website, http://www.highpuritystandards.com

The simulated matrix reference materials are standards that typically replicate 1-2 grams of natural matrix reference materials after they have undergone acid digestions and have been diluted to 100 mL. Details on the elements certified in these products can be found at http://www.highpuritystandards.com.