Soil quality Determination of dehydrogenases activity in soils - Method using iodotetrazolium chloride (INT)

Soil quality Determination of dehydrogenases activity in soils - Method using iodotetrazolium chloride (INT)

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1   Scope

This document specifies a method for determining activity of dehydrogenases in soil, using 2-(4-iodophenyl)-3-(4-nitrophenyl)-5-phenyltetrazolium chloride (INT)[1]-[5]. As the INT reduction is less sensitive to O2, the method is more robust than the TTC-method described in ISO 23753‑1.