References
- Gelman , A.L. 1972 . Determination of cobalt in plant material by atomic absorption . J. Sci. Fd. Agric. , 23 : 299 – 305 .
- Gelman , A.L. 1976 . A note on the determination of cobalt in animal liver . J. Sci. Fd. Agric. , 27 : 520
- Thomas , B. , Roughan , J.A. and Watters , E.D. 1974 . Cobalt, chromium and nickel content of some vegetable foodstuffs . J. Sci. Fd. Agric. , 25 : 771 – 776 .
- Jackson , F.J. , Read , J.I. and Lucas , B.E. 1980 . Determination of total chromium, cobalt and silver in foodstuffs by flame atomic‐absorption spectrophotometry . Analyst. , 105 : 359 – 370 .
- Barbera , R. and Farre , R. 1988 . Determination of cobalt in foods by flame and electrothermal atomization‐atomic absorption spectrometry . A Comparative Study. Atom. Spec. , 9 : 6 – 8 .
- Simmons , W.J. 1975 . Determination of low concentrations of cobalt in small samples of plant material by flameless atomic absorption spectrophotometry . Anal. Chem. , 47 : 2015 – 2018 .
- Hageman , L. , Torma , L. and Ginther , B.E. 1975 . Analysis of feed grains and forages for traces of cobalt by flameless atomic absorption spectroscopy . J. Assoc. Offic. Anal. Chem. , 58 : 990 – 994 .
- Borggaard , O.K. , Christensen , H.E.M. , Nielsen , T.K. and Willems , M. 1982 . Comparison of four ligands for the determination of cobalt in trace amounts by solvent extraction and graphite furnace atomic‐absorption spectroscopy . Analyst. , 107 : 1479 – 1483 .
- Borggaard , O.K. , Christensen , H.E.M. and Lund , S.P. 1984 . Determination of cobalt in feedingstuffs by solvent extraction and graphite furnace atomic‐absorption spectroscopy . Analyst. , 109 : 1179 – 1182 .
- Kimberly , M.M. , Bailey , G.G. and Paschal , D.C. 1987 . Determination of urinary cobalt using matrix modification and graphite furnace atomic absorption spectrometry with Zeeman‐effect background correction . Analyst. , 112 : 287 – 290 .
- Kamada , T. and Yamamoto , Y. 1980 . Use of transition elements to enhance sensitivity for selenium determination by graphitefurnace atomic absorption spectroscopy combined with solvent extraction with the APDC‐MIBK system . Talanta. , 27 : 473 – 476 .
- Kumpulainen , J. , Raitilla , A. , Lehto , J. and Koivistoinen , P. 1983 . Electrothermal atomic absorption spectrometric determination of selenium in foods and diets . J. Assoc. Off. Anal. Chem. , 66 : 1129 – 1133 .
- Varo , P. , Nuurtamo , M. and Koivistoinen , P. 1984 . Selenium content of nonfat dry milk in various countries . J. Dairy Sci. , 67 : 2071 – 2074 .
- Brown , T.F. and Zeringue , L.K. 1988 . Matrix modifiers for feedstuff selenium analysis by graphite furnace atomic absorption spectroscopy . J. Dairy Sci. , 71 : 134 – 142 .
- Approved for publication by the Director of the Louisiana Agricultural Experiment Station, Louisiana State University Agricultural Center as manuscript number 89–88–3601.