Centrifuge Tubes produced from a proprietary purified polypropylene that is certified to be free of trace metal content.
Tested via ICP-MS
Metal free centrifuge tubes are certified to contain less than 1ppm of common trace metals including: Calcium, Magnesium, Zinc, Iron, Manganese, Copper, Aluminum, Silicon, Nickel, Vanadium, Sodium, Phosphorous, Cobalt, Chromium, Potassium, Lithium, Lead, Selenium, Cadmium, Mercury, and Arsenic.