The chromatographic and biochemical aspects of the organomercurials (principally agricultural and medicinal) have been reviewed with focus on methyl- and phenylmercurials and their ecological significance.
The chromatographic and biochemical aspects of the organomercurials (principally agricultural and medicinal) have been reviewed with focus on methyl- and phenylmercurials and their ecological significance.
The major areas of diverse paper, thin-layer, gas and column chromatographic analyses have been reviewed with special emphasis on procedures used for the elaboration of compound homogeneity, metabolism, degradation and mode of action of a variety of 1,3,5-triazines that are of pesticidal, pharmaceutical, chemosterilant and industrial significance.
Ion-exchange resins and inorganic gels have only limited application in the fractionation of DNA. Although DEAE-cellulose has been used extensively, ECTEO-LA-cellulose has promise in the fractionation of DNA. Carboxymethylcellulose or nitrocellulose have limited capabilities as regards DNA fractionation. Gel filtration techniques employing agar gels, DEAE-Sephadex and DEAE-dextran are of more value in the fractionation of s-RNA and polynucleotides than for highly polymerised DNA. Amongst the kieselguhr columns, the methylated serum albumin—kieselguhr column found wide applicability and gives reproducible profiles. An Amberlite IR-120 Al3+ column also gives interesting results with various potential applications. Alternate methods effecting finer resolution are still a pressing need.
After a short discussion of the extraction methods for polycyclic aromatic hydrocarbons, a selection of the most important chromatographic separation procedures is described. Column and paper chromatography were employed most frequently. The most promising methods for further application are thin-layer and gas chromatography.