"Merck"

Supplier: Merck

bromtymolová modř ACS, Reag. Ph. Eur.

Supplier: Merck

For analysis for the determination of ascorbic acid

Supplier: Merck

N,N-Dimethylformamid, Supelco®

Supplier: Merck

EMSURE® grade solvents are suitable for a broad spectrum of classical lab applications, and are frequently used in regulated and highly demanding lab applications. EMSURE® provides worldwide best and most extensive product specifications. We declare our EMSURE® range to be in compliance with the ACS, with the reagent part of the European Pharmacopoeia (Reag. Ph Eur) and also with the ISO standards.

Supplier: Merck

4-(Dimethylamino)benzaldehyd Reag. Ph. Eur. analytical reagent, Supelco®

Supplier: Merck

Dimethylglyoxim ACS, Reag. Ph. Eur. analytical reagent, Supelco®

Supplier: Merck

4-Chlorophenol solution for AOX determination acc. to DIN EN ISO 9562.

Supplier: Merck

1,5-Difenylkarbazon (cont. 50 % Diphenylcarbazide) ACS, Reag. Ph. Eur., Supelco®

Supplier: Merck

1,5-Difenylkarbazid ACS, Reag. Ph. Eur. analytical reagent, Supelco®

Supplier: Merck

2,2'-Bipyridyl ACS, GR for analysis, reagent for iron(II) and molybdenum, Supelco®

Supplier: Merck

1,4-Dioxan stabilised, EMPLURA®, Supelco®

Supplier: Merck

N,N-Dietyl-p-fenylendiamoniumsulfát, Supelco®

Supplier: Merck

Application note: Method A or Method B
Method A: For the measurement the method 195, which is pre-calibrated in the Spectroquant® Pharo-and NOVA-photometers can be used. To increase the precision of the results a self-made blank according to the application is recommended generally.
Method B: For the measurement the pre-calibrated method 195 is not applicable. Instead of that, a self-made calibration according the application is to perform.

Supplier: Merck

1,4-Dioxan, LiChrosolv® for HPLC, Supelco®

Supplier: Merck

Eschka's mixture analytical reagent, for the determination of sulphur in coal, Supelco®

Supplier: Merck

Eriochrome cyanine R, Supelco®