Paper Chromatographic Characterization of Chlorophylls.

[Paper chromatographic analysis of plasmalogens].

Chlorophylls and Carotenoids: Measurement and Characterization by UV-VIS Spectroscopy

The quantitative determination of chlorophyll (Chl) a, Chl b, and carotenoids in a wholepigment extract of green plant tissue by UVVIS spectroscopy is complicated by the choice of sample, solvent system, and spectrophotometer used. The various plant pigments absorb light in overlapping spectral regions, depending on the system selected. This unit discusses methods used to account for such overl...

Characterization of Apple Pectin – A Chromatographic Approach

Paper chromatographic behavior of tetranitronitrosylruthenate and its decomposition products.

The paper chromatographic behavior of tetranitronitrosylruthenate was examined together with its decomposition products. First, Rf values at various eluting conditions were studied with five kinds of papers, since there was a discrepancy among the reported Rf values. Usually Rf of 0.9 was obtained by the recommended procedure of Wain, et al. Second, stability of the tetranitronitrosylruthenate ...

Two-dimensional paper chromatographic determination of amino acids in urine.

DENT (1) introduced paper chromatography for tile ilivestigatioll of amino-aciduria in 1948. However, his one-dimensional system yielded inadequate separation, and his two-dimensional method required 3 days. Since then, technics utilizing gas chromatography (2-4), thin layer chromatography, column chromatography, and high voltage electrophoresis (5-7) have been published for tile determination ...