Elimination of chioride interference by a substitution alternative in the determination of organic matter in arid soils, by the Walkley-Black method

Leonardo Figueroa T.1, Meiling Lau G.2, Iván Rojas V.2, Beatriz Yong G.2 e Irma Zegarra C.2

The elimination of chloride interference by its transformation into HCI and NCCI fumes is proposed, as a method for the determination of organic matter in soils. The results are satisfactory, in comparison with the standar Walkley—Black method.

1 Departamento de Química, UTA, Campus Velásquez, Casilla 747, Arica, Chile.
2 Alumnos egresados Carrera Químico Laboratorista.