Merck Gadolinium ICP standard traceable to SRM from NIST Gd O in HNO 2-3% 1000 mg/l Gd Certipur®

H₂O 'da 50000 mg/L COD
100 ml/paket

H₂O 'da 0.200 mg/L NO₂-N
100 ml/paket

Merck Sulfur ICP standard traceable to SRM from NIST H SO in H O 10000 mg/l S Certipur®

Merck Buffer solution (citric acid/sodium hydroxide/hydrogen chloride), traceable to SRM from NIST and PTB pH 4.00 (20°C) Certipur®

Merck di-Sodium tetraborate decahydrate certified secondary standard reference material for pH measurement; directly traceable to primary SRM from NIST/PTB pH(S)=9.18 (25°C) Certipur®

0.5 mol/l 1000 mg/L Al
500 ml/paket

Merck Buffer solution (citric acid/sodium hydroxide/hydrogen chloride) colour: red traceable to SRM from NIST and PTB pH 4.00 (20 °C) Certipur®

Merck Aluminium ICP standard traceable to SRM from NIST Al(NO ) in HNO 2-3% 10000 mg/l Al Certipur®

H₂O 'da 6.00 mg/l NH₄-N
100 ml/paket

Merck Europium ICP standard traceable to SRM from NIST Eu O in HNO 2-3% 1000 mg/l Eu Certipur®

H₂O 'da0.200 mg/L Al
100 ml/paket

Merck Buffer solution (boric acid/potassium chloride/sodium hydroxide) traceable to SRM from NIST and PTB pH 9.00 (25°C) Certipur®