This method describes the rapid method for determining the germinative capacity of an individual lot of barley.
Barley intended for the production of malt is evaluated on the basis of its germinative capacity.
In living kernels, in the presence of oxidoreductases and their corresponding coenzymes, the colorless compound triphenyltetrazolium chloride is reduced to formazan, which is red in color [1].
The method describes how to determine the chloride content in water by means of the analytical method according to MOHR.
Transformation of the chloride ions in the presence of silver ions produces silver chloride, which is not very soluble, until all the chloride ions are bound. The excess silver ions react with chromate ions to silver chromate, which exhibits a reddish brown color:
Cl - + Ag+ → AgCI
2 Ag+ + CrO42- → Ag2CrO4
The method describes how to determine the chlorine dioxide content of water photometrically with a cuvette test.
Transformation of chloride solutions in the presence of mercury thiocyanate produces less-dissociated mercury(I) chloride. An equivalent quantity of thiocyanate ions is released simultaneously, forming iron(III) thiocyanate with iron(III) salts. The red hue resulting from the reaction is determined photometrically.
The method describes how to determine the anion content of water by means of ion chromatography.
Water intended for use as an ingredient in the production of beer (brewing liquor) or other foods
Separation using ion chromatography and subsequent conductivity detection (of other anions as well)
Drinking water intended for use as an ingredient in the production of beer (brewing liquor) or other foods
Vinyl chloride is determined using gas chromatography with detection by means of mass spectrometry (GC-MS) through application of the static headspace technique (HS). This method detects selected volatile organic compounds including chloroethene (vinyl chloride).
Determination of the concentration of the anions bromide, chloride, fluoride, nitrate, nitrite, oxalate, phosphate and sulfate through ion chromatography
Water, wort, beer, NAB and beverages as well as malt and hops
Separation of bromide, chloride, fluoride, nitrate, nitrite, oxalate, phosphate and sulfate through ion chromatography followed by conductivity detection