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acetylene flame at a wavelength of 309.3 nrn. Detection limit is I mg/I. Alurninurn <br />is reported in mg/I. <br />Cadmium -Deterrnined by graphite furnace atomic absorption at a <br />wavelength of 228.8 nrn. Detection lirnit is .0001 rng/I. Cadmium is reported in mg/I. <br />Silver -Determined by graphite furnace atomic absorption at a <br />wavelength of 328.1 nrn. Silver is reported in mg/I. Detection limit is 0.0001 rng/I. <br />Vanadium -Determined by atomic absorption in o nitrous oxide- <br />acetylene flame at a wavelength of 218.3 nm. Detection lirnit is I mg/I. Vanadium is <br />reported in rng/I. <br />Arsenic -Determined by atomic absorption at a wavelength of 193.7 nrn <br />using the hydride generation method. Detection limit is .005 mg/I. Arsenic is reported <br />in mg/I. <br />Barium -Deterrnined by atomic absorption at a wavelength of 556.3 <br />nm. Detection limit is 0.1 rng/I. Barium is reported in mg/I. <br />Selenium -Deterrnined by atomic absorption using the hydride <br />generation method. Absorption is measured at o wavelength of 196.1 nrn. Selenium is <br />reported in rng/I. <br />• <br /> <br />2.5-113 <br />