Kvalita půdy - Měření aktivity enzymů v půdních vzorcích s použitím kolorimetrických substrátů v mikrodestičkách (Norma k přímému použití jako ČSN).
NORMA vydána dne 1.11.2020
Designation standards: ČSN EN ISO 20130
Classification mark: 836508
Catalog number: 510764
Publication date standards: 1.11.2020
The number of pages: 44
Approximate weight : 132 g (0.29 lbs)
Country: Czech technical standard
Kategorie: Technické normy ČSN
This document specifies a method for the measurement of several hydrolase activities (arylamidase, arylsulfatase, ß-galactosidase, alpha-glucosidase, ß-glucosidase, N-acetyl-glucosaminidase, acid, alkaline and global phosphatases, urease) simultaneously (or not) in soil samples, using colorimetric substrates. Enzyme activities of soil vary seasonally and depend on soil chemical, physical and biological characteristics. This method can be applied either to detect harmful effects on soil enzyme activities derived from toxic substances or other anthropogenic agents in contaminated soils against a control soil, or to test chemicals