Reagents for analysis (Ph. Eur., ASTM, DIN)

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Zeigt 121 - 144 von 185 Produkten
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Sodium sulphate R1 anhydrous, Reag. Ph. Eur., 100 g
Sodium chloride solution, saturated, Reag. Ph. Eur., Chapter 4.1.1, 1 l
Sodium chloride solution, Reag. Ph. Eur., Chapter 4.1.1, 1 l
Sodium carbonate solution, Reag. Ph. Eur., 1 l
Phosphomolybdotungstic reagent, diluted
Phosphomolybdotungstic reagent, Reag. Ph. Eur., 100 ml
Nitro-molybdovanadic reagent, Reag. Ph. Eur., 200 ml
Iodoplatinate reagent, Reag. Ph. Eur., Chapter 4.1.1, 200 ml
Hypophosphorous reagent
Iron(III) chloride solution R3, Reag. Ph. Eur., 100 ml
Iron(III) chloride solution R2, Reag. Ph. Eur., 1 l
di-Sodium tetraborate solution, Reag. Ph. Eur., Chapter 4.1.1, 1 l
Copper(II) citrate solution, Reag. Ph. Eur., Chapter 4.1.1, 1 l
Copper(II) citrate solution, Reag. Ph. Eur., 1 l
Copper(II) sulphate solution, Reag. Ph. Eur., 1 l
Ammonium monovanadate solution, Reag. Ph. Eur., 1 l
Ammonium thiocyanate solution, Reag. Ph. Eur., 1 l
Ammonium oxalate solution, Reag. Ph. Eur., 1 l
Ammonium nitrate R1, Reag. Ph. Eur., 100 g
Ninhydrin solution R4, Reag. Ph. Eur.
Ninhydrin solution R3
Ninhydrin solution R2
Ninhydrin solution R1, Reag. Ph. Eur., 100 ml

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Questions about Reagents for analysis (Ph. Eur., ASTM, DIN)

Why Reagents for analysis (Ph. Eur., ASTM, DIN)?

A reagent for analysis is a chemical whose impurities are limited so they do not become a signal in a titration, a digestion or a photometric method. Pharmacopoeia, ASTM and DIN names point at different limit lists. The grade, not only the identity, is the purchase.

A reference material is the article against which another result is compared. Its value is stated, and the uncertainty of that value is part of the product. An ICP or ion standard is a solution of known concentration. A volumetric standard is for titration. A chromatography standard is the peak you match. The grade names, including pharmacopoeia and ASTM, say which impurities were limited. Identity is checked on PubChem. Names follow IUPAC. Medicinal grades follow the European Pharmacopoeia and USP.

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