6533b7d2fe1ef96bd125ebd3
RESEARCH PRODUCT
Solid-phase extraction on C18 in the trace determination of selected polychlorinated biphenyls in milk.
Guillermina FontM.j. RedondoYolanda PicóJ. Mañessubject
Detection limitChromatographyChromatography GasMilk HumanOrganic ChemistryExtraction (chemistry)food and beveragesPolychlorinated biphenylGeneral MedicineStandard methodsBiochemistryPolychlorinated BiphenylsAnalytical Chemistrychemistry.chemical_compoundMilkchemistryAnimalsSolid phase extractiondescription
The utility of solid-phase extraction with octadecylsilica for determining fifteen polychlorinated biphenyl (PCB) congeners from milk samples was examined. Recoveries higher than 80% and relative standard deviations better than 10% were obtained for PCBs from different kinds of milk (whole, skimmed, 2%, powdered, breast and evaporated). A comparison with other procedures was made. The described method provides better detection limits than those attainable with the liquid-liquid extractions currently used as standard methods, when capillary gas-liquid chromatography is used for the final determination. A study of the separation was also performed using six different fused-silica capillary columns and an electron-capture detector.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 1995-02-24 | Journal of chromatography. A |