Indigenous Proline is a Two-Dimensional Safety-Relief Valve in Balancing Specific Amino Acids in Rice under Hexavalent Chromium Stress

Two new methods have been developed to analyze for organic pollutants in water. The first, two-dimensional gas chromatography, using post detector peak recycling (PDPR), involves the use of a computer-controlled gas Chromatograph to selectively trap compounds of interest and rechromatograph them on a second column, recycling them through the same detector again. The second employs a new detector system, a thermally modulated electron capture detector (TMECD). Both methods were used to demonstrate their utility by applying them to the analysis of a new class of potentially ubiquitous anthropoaqueous pollutants in drinking waters- -haloacetonitriles. These newly identified compounds are produced from certain amino acids and other nitrogen-containing compounds reacting with chlorine during the disinfection stage of treatment.

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Chromatography of amino acids on silica gel. I. Two-dimensional chromatography on Silufol® thin layers

Collection of Czechoslovak Chemical Communications ◽

10.1135/cccc19723034 ◽

1972 ◽

Vol 37 (9) ◽

pp. 3034-3038 ◽

Cited By ~ 4

Author(s):

K. Chmel

Keyword(s):

Amino Acids ◽

Silica Gel ◽

Thin Layers ◽

Two Dimensional

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Influence of foliar glutathione and putrescine on metabolism and mineral status of genetically diverse rapeseed cultivars under hexavalent chromium stress

Environmental Science and Pollution Research ◽

10.1007/s11356-021-13702-2 ◽

2021 ◽

Author(s):

Almas Jahan ◽

Muhammad Iqbal ◽

Fahad Shafiq ◽

Arif Malik ◽

Muhammad Tariq Javed

Keyword(s):

Hexavalent Chromium ◽

Mineral Status ◽

Chromium Stress

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PAPER CHROMATOGRAPHY OF COMPLEX BIOLOGICAL MATERIALS BY SOLVENT REDEVELOPMENT WITHOUT PRIOR REMOVAL OF SALTS OR PROTEINS

Canadian Journal of Biochemistry and Physiology ◽

10.1139/o60-141 ◽

1960 ◽

Vol 38 (10) ◽

pp. 1137-1147 ◽

Cited By ~ 12

Author(s):

Arthur E. Pasieka

Keyword(s):

Amino Acids ◽

Paper Chromatography ◽

Filter Paper ◽

Complex Mixtures ◽

Two Dimensional ◽

One Dimensional ◽

Equivalent Time ◽

Biological Compounds ◽

High Concentrations ◽

Subsequent Staining

A solvent redeveloping technique has been devised by which amino acids, peptides, and sugars can be separated from complex mixtures in the presence of high concentrations of salts and proteins. The separations are effected by two to four successive 18-hour solvent developments with drying between each 18-hour period before subsequent staining of the chromatograms. Better separations and resolutions are obtained by such successive 18-hour solvent developments than by one continuous solvent development for an equivalent time. The effect of these redevelopments on the separations and resolutions of biological compounds is illustrated at various stages by photographs of one- and two-dimensional chromatograms. The redevelopment technique requires filter paper sheets up to 4 ft in length for one-dimensional analytical and preparative types of chromatograms.

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