Light petroleum fractions containing C4-C15 hydrocarbon compounds are used as a feedstock for petrochemical processes that can be severely affected by trace amounts of arsenic. A simple graphite furnace atomic &n
Blood samples are taken using vacuum test tubes with lithium heparin as an anticoagulant, diluted with deionized water or 0.1 % (m/v) Triton X-100 solution. The diluted sample (10 µl) is then injected into the graphite furna