HuntD. C.PhilipL. A., and CrosbyN. T., Analyst (London)104, 1171 (1979).
2.
NesheimS. J., J. Assoc. Off. Anal. Chem.52, 975 (1969).
3.
NesheimS. J.HardinM. F.FrancisO., and LaughamW. S., J. Assoc. Off. Anal. Chem.56, 817 (1973).
4.
HorwitzW., Ed., Official Methods of Analysis of the Association of Official Analytical Chemists, 12th ed (Association of Analytical Chemists, Washington, DC, 1975).
5.
StahrH. M., Ed., Analytical Toxicology Methods Manual (Iowa State University Press, Ames, 1976).
6.
DusoldP.SpohnJ.PohlandA., and DreifusP., Mycotoxins Mass Spectral Data Bank (FDA, Washington, DC, 1978).