Simultaneous determination of aliphatic hydrocarbons, PCBs and PCTs in pork liver by gas chromatography

Aliphatic hydrocarbons in wolf tissue samples from Galicia (N.W. Spain)

We have investigated the levels of aliphatic hydrocarbons, UCM and CPI in wolves from Galicia (Spain). The n-alkanes distribution was characterized by a predominance of even carbon n-alkanes. Suprarenal and muscle tissues contained more aliphatic hydrocarbons (AHs) than spleen, liver or kidney. The AHs which were detected were found most frequently in adults and males. The mean concentrations of C10, C33, C34, C35 and C36 were the lowest of all compounds quantified (< 1 mg/kg lipid weight) and C12, C14, C16 and C22 were the highest (> 14.2 mg/kg lipid weight). The presence of phytane and UCM (> 3) together to PR/C17 and PH/C18 ratios (both < 1) suggest a large contribution of crude oils.

PCBs and PCTs in wolves (Canis lupus, L) in Galicia (N.W. Spain)

Levels of PCBs and PCTs (the Aroclor1260 and Aroclor5460 congeners, respectively) in viscera of wolves of Galicia (N.W. Spain) were determined by capillary GC with electron-capture detection. Mean PCB levels ranged from 0.13 mg/kg of dry tissue in kidney to 3.70 mg/kg in liver. PCTs were detected only in suprarenal capsule, their mean level being 3.77 mg/kg.