Merck 109889 Buffer concentrate (boric acid/potassium chloride/sodium hydroxide), traceable to SRM of NIST and PTB for 500 ml bu

Merck 170314 Copper ICP standard traceable to SRM from NIST Cu(NO₃)₂ in HNO₃ 2-3% 1000 mg/l Cu 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 109438 Buffer solution (boric acid/potassium chloride/sodium hydroxide), traceable to SRM from NIST and PTB pH 10.00 (20°C) Certipur®

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

Merck 170242 Tin standard solution traceable to SRM from NIST SnCl₄ in HCl 2 mol/l 1000 mg/l Sn 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 109437 Buffer solution (citric acid/sodium hydroxide), traceable to SRM from NIST and PTB pH 6.00 (20°C) 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 170223 Lithium standard solution traceable to SRM from NIST LiNO₃ in HNO₃ 0.5 mol/l 1000 mg/l Li Certipur®

Merck 170230 Potassium standard solution traceable to SRM from NIST KNO₃ in HNO₃ 0.5 mol/l 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 119774 Barium standard solution traceable to SRM from NIST Ba(NO₃)₂ in HNO₃ 0.5 mol/l 1000 mg/l Ba Certipur®

Merck 119792 Nickel standard solution traceable to SRM from NIST Ni(NO₃)₂ in HNO₃ 0.5 mol/l 1000 mg/l Ni Certipur®

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

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 119813 Sulfate standard solution traceable to SRM from NIST Na₂SO₄ in H₂O 1000 mg/l SO₄ Certipur®

Synonyms: Sulfate standard for aqueous matrices ready for use