一水合磷酸二氢钠 分析级 EMSURE ACS, Reag. Ph Eur
五氧化二磷干燥剂 SICAPENT (phosphorus pentoxide drying agent for desiccators) on inert carrier material
加热炉专用标准水 solid standard for KF oven method apura
金浓缩标准液 for 1000 mg Au, [H(AuCl4) 3H2O in 12.7% HCl] Titrisol
缓冲剂 (Disodium tetraborate), tracable to SRM from NIST and PTB pH 9.18 (25°C) CertiPUR