Merck 170204 Antimony standard solution traceable to SRM from NIST Sb₂O₃ in HCl 2 mol/l 1000 mg/l Sb Certipur 500 Ml

Merck 199002 Buffer solution (potassium dihydrogen phosphate/di-sodium hydrogen phosphate), traceable to SRM from NIST and PTB pH 7.00 (25°C) Certipur®

Merck 170242 Tin standard solution traceable to SRM from NIST SnCl₄ in HCl 2 mol/l 1000 mg/l Sn Certipur®

Merck 119797 Silver standard solution traceable to SRM from NIST AgNO₃ in HNO₃ 0.5 mol/l 1000 mg/l Ag Certipur®

Merck 170350 Selenium ICP standard traceable to SRM from NIST SeO₂ in HNO₃ 2-3% 1000 mg/l Se Certipur®

Merck 119500 Boron standard solution traceable to SRM from NIST H₃BO₃ in H₂O 1000 mg/l B Certipur®

Merck 170308 Calcium ICP Standard traceable to SRM from NIST Ca(NO₃)₂ in HNO₃ 2-3% 1000 mg/l Ca Certipur®

Merck 109438 Buffer solution (boric acid/potassium chloride/sodium hydroxide), traceable to SRM from NIST and PTB pH 10.00 (20°C) Certipur®

Merck 119781 Iron standard solution traceable to SRM from NIST Fe(NO₃)₃ in HNO₃ 0.5 mol/l 1000 mg/l Fe Certipur®

Merck 170328 Lead ICP standard traceable to SRM from NIST Pb(NO₃)₂ in HNO₃ 2-3% 1000 mg/l Pb Certipur®

Synonyms: Nota 1 A

Merck 101203 Potassium chloride solution (nominal 1.41 mS/cm) certified reference material for the measurement of electrolytic conductivity (c=0.01 mol/l) Certipur®

Merck 170363 Titanium ICP standard traceable to SRM from NIST (NH₄)₂TiF₆ in H₂O 1000 mg/l Ti Certipur®

Merck 119779 Chromium standard solution traceable to SRM from NIST Cr(NO₃)₃ in HNO₃ 0.5 mol/l 1000 mg/l Cr Certipur®

Merck 109462 Buffer solution (boric acid/potassium chloride/sodium hydroxide), traceable to SRM from NIST and PTB pH 11.00 (20°C) Certipur®

Merck 119899 Nitrite standard solution traceable to SRM from NIST NaNO₂ in H₂O 1000 mg/l NO₂ Certipur®

Synonyms: Nitrite standard for aqueous matrices ready foruse

Merck 119770 Aluminium standard solution traceable to SRM from NIST Al(NO₃)₃ in HNO₃ 0.5 mol/l 1000 mg/l Al Certipur®

Merck 170353 Sodium ICP standard traceable to SRM from NIST NaNO₃ in HNO₃ 2-3% 1000 mg/l Na Certipur®