锡 fine powder pure (particle size < 71 μm)
铜粉 fine powder GR particle size < 63 μm (> 230 mesh ASTM)
甲酸钠 分析级 EMSURE ACS, Reag. Ph Eur
缓冲液 (potassium hydrogen phthalate), traceable to SRM from NIST and PTB pH 4.01 (25°C) CertiPUR
磷酸氢二钾 anhydrous 99.99 Suprapur
钒标准液 可溯源至NIST的SRM,NH VO 溶于0.5 mol/l HNO 1000 mg/l V CertiPUR
汞 AAS 标准液 1,000 mg/l traceable to SRM from NIST Hg(NO ) in HNO 2 mol/l 1000 mg/l Hg CertiPUR
硅 AAS 标准液 1,000 mg/l traceable to SRM from NIST acidic, (NH ) SiF in H O 1000 mg/l Si CertiPUR
铅浓缩标准液 1000 mg Pb, (Pb(NO3)2 in H2O) Titrisol
铝粉 fine powder, stabilized about 2% fat