Isothermal gas chromatographic analysis of putrefactive products in gastrointestinal contents and urine using the same dual column system

analisis analyse analyse chimique analysis anatomia anatomia animal anatomie anatomie animale anatomy animal anatomy appareil digestif body fluids body parts chemical analysis chromatographie chromatography cromatografia degradation desechos deterioro digestive system excrements excreta indol indoles inorganic compounds liquid wastes liquide biologique methode methods organic compounds organic nitrogen compounds orina partes del cuerpo partie du corps phenolic compounds procesamiento processing sales salts sel separating separation sistema digestivo sulfure sulfuros sulphides traitement urine wastes