玻璃中的微量元素

One unit of SRM 612 comprises of four wafers, sliced to 3 mm thickness from a hand-pulled rod. The wafers are of oval to circular cross-section with nominal diameter of 12 mm to 14 mm and an approximate mass of 1.4 g. The nominal mass fractions of 61 elements added to the glass matrix are in the range of 10 mg/kg to 80 mg/kg. For more information, please refer to the COA and SDS.
SRM 612_cert

SRM 612_SDS

The Standard Reference Material (SRM) is primarily intended for facilitating the development of chemical methods for the analysis of trace elements in glass.

Certified for the analytes listed below.
Antimony (Sb), Arsenic (As), Barium (Ba), Cadmium (Cd), Chromium (Cr), Iron (Fe), Lead (Pb), Manganese (Mn), Nickel (Ni), Rubidium (Ru), Selenium (Se), Silver (Ag), Strontium (Sr), Thorium (Th), Uranium (U)

Reference/Informational value is provided for the following analytes.
Cobalt (Co), Copper (Cu), Thallium (Th), Titanium (Ti), Strontium (⁸⁷Sr/⁸⁶Sr), Boron (B), Cerium (Ce), Dysprosium (Dy), Erbium (Er), Europium (Eu), Gadolinium (Gd), Gold (Au), Lanthanum (La), Lithium (Li), Neodymium (Nd), Potassium (K), Samarium (Sm), Ytterbium (Yb), Uranium (²³⁵U/U_Total)

See certificate for values and more details at nist.gov/SRM.

NIST is a registered trademark of National Institute of Standards and Technology

SRM is a registered trademark of National Institute of Standards and Technology