SRM 3156 Tellurium (Te) Standard Solution Lot No. 140830

This Standard Reference Material (SRM) is intended for use as a primary calibration standard for the quantitative determination of tellurium. A unit of SRM 3156 consists of five 10 mL sealed borosilicate glass ampoules of an acidified aqueous solution prepared gravimetrically to contain a known mass fraction of tellurium. The solution contains hydrochloric acid at a volume fraction of approximately 10 %, which is equivalent to an amount of substance concentration (molarity) of approximately 1.2 mol/L. This data is public in the Certificate of Analysis for this material.

本标准参考物质（Standard Reference Material，SRM）旨在用作定量测定碲的一级校准标准。单份SRM 3156包含5支10 mL密封硼硅酸盐玻璃安瓿，内装经重量法配制的酸化水溶液，其中碲的质量分数为已知定值。该溶液中盐酸的体积分数约为10%，对应的物质的量浓度（摩尔浓度）约为1.2 mol/L。此类数据可在本材料的分析证书（Certificate of Analysis）中公开获取。