Merck 109892 Buffer concentrate (phosphate/sodium hydroxide) pH 12.00 ± 0.05 (20°C) Titrisol

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

Merck 119774 Barium standard solution traceable to SRM from NIST Ba(NO₃)₂ in HNO₃ 0.5 mol/l 1000 mg/l Ba 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 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 170369 Zinc ICP standard traceable to SRM from NIST Zn(NO₃)₂ in HNO₃ 2-3% 1000 mg/l Zn Certipur®

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 170342 Potassium ICP standard traceable to SRM from NIST KNO₃ in HNO₃ 2-3% 1000 mg/l K Certipur®

Merck 170362 Tin ICP standard traceable to SRM from NIST SnCl₄ in HCl 7% 1000 mg/l Sn Certipur®

Merck 119806 Zinc standard solution traceable to SRM from NIST Zn(NO₃)₂ in HNO₃ 0.5 mol/l 1000 mg/l Zn 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 109434 Buffer solution (citric acid/sodium hydroxide/hydrogen chloride), traceable to SRM from NIST and PTB pH 3.00 (20°C) Certipur®

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

Merck 109409 Buffer solution (boric acid/potassium chloride/sodium hydroxide)traceable to SRM from NIST and PTB pH 10.00 (25°C) Certipur®

Merck 170223 Lithium standard solution traceable to SRM from NIST LiNO₃ in HNO₃ 0.5 mol/l 1000 mg/l Li Certipur®

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