Merck 170216 Gold standard solution traceable to SRM from NIST H(AuCl₄) in HCl 2 mol/l 1000 mg/l Au Certipur 100 Ml

Merck 107294 Buffer solution (di-sodium hydrogen phosphate/potassium dihydrogen phosphate) traceable to SRM from NIST and PTB pH 6.88 (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 109435 Buffer solution (citric acid/sodium hydroxide/hydrogen chloride), traceable to SRM from NIST and PTB pH 4.00 (20°C) Certipur®

Merck 109436 Buffer solution (citric acid/sodium hydroxide) traceable to SRM from NIST and PTB pH 5.00 (20°C) Certipur®

Merck 170303 Arsenic ICP standard traceable to SRM from NIST H₃AsO₄ in HNO₃ 2-3% 1000 mg/l As Certipur®

Merck 170385 Sulfur ICP standard traceable to SRM from NIST H₂SO₄ in H₂O 10000 mg/l S Certipur®

Merck 109439 Buffer solution (di-sodium hydrogen phosphate/potassium dihydrogen phosphate), traceable to SRM from NIST and PTB pH 7.00 (20°C) Certipur®

Merck 170302 Antimony ICP standard traceable to SRM from NIST Sb₂O₃ in HCl 7% 1000 mg/l Sb 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 119777 Cadmium standard solution traceable to SRM from NIST Cd(NO₃)₂ in HNO₃ 0.5 mol/l 1000 mg/l Cd Certipur®

Merck 109434 Buffer solution (citric acid/sodium hydroxide/hydrogen chloride), traceable to SRM from NIST and PTB pH 3.00 (20°C) 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 170236 Silicon standard solution traceable to SRM from NIST SiO₂ in NaOH 0.5 mol/l 1000 mg/l Si Certipur®

Merck 109432 Buffer solution (glycine/sodium chloride/hydrogen chloride), traceable to SRM from NIST and PTB pH 1.00 (20°C) Certipur®

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

Merck 170329 Lithium ICP Standard traceable to SRM from NIST LiNO₃ in HNO₃ 2-3% 1000 mg/l Li Certipur®