| D007259 |
Infrared Rays |
That portion of the electromagnetic spectrum usually sensed as heat. Infrared wavelengths are longer than those of visible light, extending into the microwave frequencies. They are used therapeutically as heat, and also to warm food in restaurants. |
Heat Waves,Heat Wave,Infrared Ray,Ray, Infrared,Rays, Infrared,Wave, Heat,Waves, Heat |
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| D008745 |
Methylation |
Addition of methyl groups. In histo-chemistry methylation is used to esterify carboxyl groups and remove sulfate groups by treating tissue sections with hot methanol in the presence of hydrochloric acid. (From Stedman, 25th ed) |
Methylations |
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| D009154 |
Mutation |
Any detectable and heritable change in the genetic material that causes a change in the GENOTYPE and which is transmitted to daughter cells and to succeeding generations. |
Mutations |
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| D009905 |
Optical Rotatory Dispersion |
The method of measuring the dispersion of an optically active molecule to determine the relative magnitude of right- or left-handed components and sometimes structural features of the molecule. |
Dispersion, Optical Rotatory,Rotatory Dispersion, Optical |
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| D010084 |
Oxidation-Reduction |
A chemical reaction in which an electron is transferred from one molecule to another. The electron-donating molecule is the reducing agent or reductant; the electron-accepting molecule is the oxidizing agent or oxidant. Reducing and oxidizing agents function as conjugate reductant-oxidant pairs or redox pairs (Lehninger, Principles of Biochemistry, 1982, p471). |
Redox,Oxidation Reduction |
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| D010504 |
Periodic Acid |
A strong oxidizing agent. |
Paraperiodic Acid,Periodic Acid (HIO4),Periodic Acids,Acid, Paraperiodic,Acid, Periodic,Acids, Periodic |
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| D011135 |
Polysaccharides, Bacterial |
Polysaccharides found in bacteria and in capsules thereof. |
Bacterial Polysaccharides |
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| D002849 |
Chromatography, Gas |
Fractionation of a vaporized sample as a consequence of partition between a mobile gaseous phase and a stationary phase held in a column. Two types are gas-solid chromatography, where the fixed phase is a solid, and gas-liquid, in which the stationary phase is a nonvolatile liquid supported on an inert solid matrix. |
Chromatography, Gas-Liquid,Gas Chromatography,Chromatographies, Gas,Chromatographies, Gas-Liquid,Chromatography, Gas Liquid,Gas Chromatographies,Gas-Liquid Chromatographies,Gas-Liquid Chromatography |
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| D002854 |
Chromatography, Paper |
An analytical technique for resolution of a chemical mixture into its component compounds. Compounds are separated on an adsorbent paper (stationary phase) by their varied degree of solubility/mobility in the eluting solvent (mobile phase). |
Paper Chromatography,Chromatographies, Paper,Paper Chromatographies |
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| D005782 |
Gels |
Colloids with a solid continuous phase and liquid as the dispersed phase; gels may be unstable when, due to temperature or other cause, the solid phase liquefies; the resulting colloid is called a sol. |
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