. Biochemical systematics. Biochemical variation; Botany. GENERAL EVALUATION Classical methods have been and continue to be applied to specific groups of compounds by special- ists. Rigorous chemical characterization of specific compounds usually requires complex procedures for isolation (ion-exchange, paper or column chroma- tography, fractional distillation or crystalhzation), for establishment of structure (melting point, spec- tral measurement, mass spectral analysis, nuclear magnetic resonance, elemental analysis, and so on), and for verification (degradations, preparation of derivatives,
. Biochemical systematics. Biochemical variation; Botany. GENERAL EVALUATION Classical methods have been and continue to be applied to specific groups of compounds by special- ists. Rigorous chemical characterization of specific compounds usually requires complex procedures for isolation (ion-exchange, paper or column chroma- tography, fractional distillation or crystalhzation), for establishment of structure (melting point, spec- tral measurement, mass spectral analysis, nuclear magnetic resonance, elemental analysis, and so on), and for verification (degradations, preparation of derivatives, and synthesis if possible). Under normal circumstances these techniques are the responsibility of the chemist rather than the biologist. The biol- ogist is rarely personally involved in detailed chemical methodology, but certain techniques such 327. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Alston, Ralph E; Turner, B. L. (Billie Lee), 1925-. Englewood Cliffs, N. J. , Prentice-Hall
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Keywords: ., bookcentury1900, bookcollectionbiodiversity, booksubjectbotany
