Merck 109434 Buffer solution (citric acid/sodium hydroxide/hydrogen chloride), traceable to SRM from NIST and PTB pH 3.00 (20°C)

Merck 119797 Silver standard solution traceable to SRM from NIST AgNO₃ in HNO₃ 0.5 mol/l 1000 mg/l Ag 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 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 109949 Magnesium standard 1000 mg Mg, (MgCl₂ in 6% HCl) Titrisol®

Merck 170302 Antimony ICP standard traceable to SRM from NIST Sb₂O₃ in HCl 7% 1000 mg/l Sb Certipur®

Synonyms: Nota 1 A

Merck 170230 Potassium standard solution traceable to SRM from NIST KNO₃ in HNO₃ 0.5 mol/l 1000 mg/l K Certipur®

Merck 109477 Buffer solution (di-sodium hydrogen phosphate/potassium dihydrogen phosphate), colour: green traceable to SRM from NIST and PTB pH 7.00 (20°C) Certipur®

Merck 170331 Magnesium ICP standard traceable to SRM from NIST Mg(NO₃)₂ in HNO₃ 2-3% 1000 mg/l Mg Certipur®

Merck 111355 ICP multi-element standard solution IV (23 elements in diluted nitric acid) 1000 mg/l: Ag, Al, B, Ba, Bi, Ca, Cd, Co, Cr, Cu, Fe, Ga, In, K, Li, Mg, Mn, Na, Ni, Pb, Sr, Tl, Zn 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 170242 Tin standard solution traceable to SRM from NIST SnCl₄ in HCl 2 mol/l 1000 mg/l Sn 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 170332 Manganese ICP standard traceable to SRM from NIST Mn(NO₃)₂ in HNO₃ 2-3% 1000 mg/l Mn Certipur®

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

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