Polarographic determination of robenidine residues in chicken tissues, eggs, litter, soil, and plant tissue.
J Assoc Off Anal Chem
; 60(6): 1310-7, 1977 Nov.
Article
en En
| MEDLINE
| ID: mdl-924934
ABSTRACT
Polarographic residue methods have been developed for determining robenidine (Robenz), 1,3-bis[p-chlorobenzylidene)amino]-guanidine monohydrochloride, in chicken tissues, eggs, litter, soil, and plants. The compound is extracted from chicken fat, skin, muscle, liver, and eggs with ethyl acetate; from blood with acetone; from plant tissue, litter, and kidney with acidic acetone; and from soil with basic methanol. After extraction by high-speed blending or overnight shaking, the extract is cleaned up by evaporation, solvent partition and/or elution from CG-50 ion exchange resin. Robenidine is quantitated by differential cathode ray polarography, using acidic aqueous methanol or acetic acid (1+1) supporting electrolyte. Recoveries ranged from 64 to 125% with an average overall recovery of 90%. The validated sensitivity is 0.1 ppm for chicken tissues, soil, and plants, 0.01 ppm for eggs, and 1 ppm for litter.
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Colección:
01-internacional
Base de datos:
MEDLINE
Asunto principal:
Robenidina
/
Residuos de Plaguicidas
/
Guanidinas
Límite:
Animals
Idioma:
En
Revista:
J Assoc Off Anal Chem
Año:
1977
Tipo del documento:
Article