Merck Niobium ICP standard traceable to SRM from NIST NH NbF in H O 1000 mg/l Nb Certipur®
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Merck Buffer solution (potassium hydrogen phthalate), traceable to SRM from NIST and PTB pH 4.01 (25°C) Certipur®
Merck Gallium ICP standard traceable to SRM from NIST Ga(NO ) in HNO 2-3% 1000 mg/l Ga Certipur®
Merck Water Standard Oven 1% Certified Reference Material for Karl Fischer oven technique Aquastar®
Merck Uranium ICP standard traceable to SRM from NIST UO (NO ) in HNO 2-3% 10 mg/l U Certipur®
Merck Buffer solutions traceable to SRM from NIST and PTB 10 x pH 4.01 (phthalate) 10 x pH 7.00 (phosphate) 10 x pH 9.00 (borate) pH 4.01/pH 7.00/pH 9.00 (25°C) Certipur®
Merck Terbium ICP standard traceable to SRM from NIST Tb(NO ) in HNO 2-3% 1000 mg/l Tb Certipur®
Merck Buffer solution (potassium dihydrogen phosphate/disodium hydrogen phosphate) traceable to SRM from NIST and PTB pH 7.00 (25°C) Certipur®
Merck 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 Water standard 0.1% Certified Reference Material for Karl Fischer Titration 1 g 1 mg H O Aquastar®
Merck Aluminium ICP standard traceable to SRM from NIST Al(NO ) in HNO 2-3% 1000 mg/l Al Certipur®