Merck 170236 Silicon standard solution traceable to SRM from NIST SiO₂ in NaOH 0.5 mol/l 1000 mg/l Si Certipur 500 Ml

Merck 109949 Magnesium standard 1000 mg Mg, (MgCl₂ in 6% HCl) Titrisol®

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

Merck 170226 Mercury standard solution traceable to SRM from NIST Hg(NO₃)₂ in HNO₃ 2 mol/l 1000 mg/l Hg Certipur®

Merck 170227 Molybdenum standard solution traceable to SRM from NIST (NH₄)₆Mo₇O₂₄ in H₂O 1000 mg/I Mo Certipur®

Merck 170326 Iron ICP standard traceable to SRM from NIST Fe(NO₃)₃ in HNO₃ 2-3% 1000 mg/l Fe Certipur®

Merck 170369 Zinc ICP standard traceable to SRM from NIST Zn(NO₃)₂ in HNO₃ 2-3% 1000 mg/l Zn Certipur®

Merck 119533 Cyanide standard solution traceable to SRM from NIST K₂[Zn(CN)₄] in H₂O 1000 mg/l CN Certipur®

Merck 109435 Buffer solution (citric acid/sodium hydroxide/hydrogen chloride), traceable to SRM from NIST and PTB pH 4.00 (20°C) Certipur®

Merck 119786 Copper standard solution traceable to SRM from NIST Cu(NO₃)₂ in HNO₃ 0.5 mol/l 1000 mg/l Cu Certipur®

Merck 109892 Buffer concentrate (phosphate/sodium hydroxide), traceable to SRM of NIST and PTB for 500 ml buffer solution, pH 12.00 ± 0.05 (20°C) Titrisol®

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 170216 Gold standard solution traceable to SRM from NIST H(AuCl₄) in HCl 2 mol/l 1000 mg/l Au Certipur®

CAS #: 7647-01-0

Merck 170336 Nickel ICP standard traceable to SRM from NIST Ni(NO₃)₂ in HNO₃ 2-3% 1000 mg/l Ni Certipur®

Merck 119898 Phosphate standard solution traceable to SRM from NIST KH₂PO₄ in H₂O 1000 mg/l PO₄ Certipur®

Synonyms: Phosphate standard for aqueous matrices ready for use

Merck 101557 Potassium chloride solution (nominal 0.147 mS/cm) certified reference material for the measurement of electrolytic conductivity (c=0.001 mol/l) Certipur®

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