Merck 119785 Cobalt standard solution traceable to SRM from NIST Co(NO₃)₂ in HNO₃ 0.5 mol/l 1000 mg/l Co Certipur 500 Ml

Merck 119811 Nitrate standard solution traceable to SRM from NIST NaNO₃ in H₂O 1000 mg/l NO₃ Certipur®

Synonyms: Nitrate standard for aqueous matrices ready for use

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 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 170312 Chromium ICP standard traceable to SRM from NIST Cr(NO₃)₃ in HNO₃ 2-3% 1000 mg/l Cr Certipur®

Merck 170326 Iron ICP standard traceable to SRM from NIST Fe(NO₃)₃ in HNO₃ 2-3% 1000 mg/l Fe 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 170363 Titanium ICP standard traceable to SRM from NIST (NH₄)₂TiF₆ in H₂O 1000 mg/l Ti Certipur®

Merck 170307 Boron ICP standard traceable to SRM from NIST, H₃BO₃ in H₂O 1000 mg/l B Certipur®

Merck 109987 Copper standard 1000 mg Cu, (CuCl₂ in H₂O) Titrisol®

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 109433 Buffer solution (citric acid/sodium hydroxide/hydrogen chloride), traceable to SRM from NIST and PTB pH 2.00 (20°C) Certipur®

Merck 119788 Magnesium standard solution traceable to SRM from NIST Mg(NO₃)₂ in HNO₃ 0.5 mol/l 1000 mg/l Mg Certipur®

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

Merck 119796 Selenium standard solution traceable to SRM from NIST SeO₂ in HNO₃ 0.5 mol/l 1000 mg/l Se Certipur®

Synonyms: Selenium standard for aqueous matrices ready foruse

Merck 170313 Cobalt ICP standard traceable to SRM from NIST Co(NO₃)₂ in HNO₃ 2-3% 1000 mg/l Co Certipur®

Synonyms: Nota 1 A

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®