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THE DETERMINATION OF RESIDUES OF ETHYLENEBISDITHIOCARBAMATES AND THEIR HOMOLOGUES IN HOPS
Author(s) -
Pragnell M. J.
Publication year - 1982
Publication title -
journal of the institute of brewing
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.523
H-Index - 51
eISSN - 2050-0416
pISSN - 0046-9750
DOI - 10.1002/j.2050-0416.1982.tb04125.x
Subject(s) - hop (telecommunications) , residue (chemistry) , chemistry , fungicide , hydrolysis , boiling , chromatography , detection limit , organic chemistry , food science , botany , biology , computer network , computer science
Residues of ethylenebisdithiocarbamate and homologous fungicides are determined by hydrolysis with boiling sulphuric acid and colorimetric measurement of the liberated carbon disulphide. By its nature, the method is not specific for individual fungicides of this type but is simple and considered suitable for the screening of hop intake samples. Following the proposed introduction of a contractual residue limit of 60 mg/kg, this method was used by various laboratories to survey the 1980 and 1981 hop crops.