Rf

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Rf

, RF
Symbol denoting movement of a substance in paper or thin layer chromatography relative to the solvent front (that is, retardation factor); equal to the migration distance of a substance divided by the migration distance of the solvent front.

RF


Rf

Abbreviation for rutherfordium.

RF

rheumatoid factor.

Rf

symbol for a ratio used in paper and thin-layer chromatography, representing the distance from the origin to the center of the separated zone divided by the distance from the origin to the solvent front.

rf

1 abbreviation for radiofrequency.
2 abbreviation for rheumatic fever.

Rf

1 symbol for the element rutherfordium.
2 (in chromatography) abbreviation for retardation factor or ratio to (solvent) front.

RF

abbreviation for rheumatoid factor.

QRFP

A gene on chromosome 9q34.12 that encodes an orexigenic neuropeptide which stimulates feeding behavior, metabolic rate and locomotor activity and increases blood pressure. QRFP may promote aldosterone secretion by the adrenal gland.

RF

1. Radiofrequency, see there.
2. Rate of flow.
3. Renal failure.
4. Respiratory failure.
5. Rheumatic fever.
6. Rheumatoid factor, see there.

Rf

chemical symbol, rutherfordium; rheumatoid factor.
References in periodicals archive ?
RESULTS: In the ascending technique, an alcohol extract of Cerbera odollam gave 4 spots having Rf values 0.
All tracks in the plate were scanned at user-defined wavelength (278 and 350 nm for cannabis) and individual Rf values of peaks were obtained.
incognita is determined to a greater extent by additive gene action; and therefore, it responds favorably to the selection based on individuals with lower RF values (Table 2).
In the perennial crop environment with Jatropha curcas cultivation, the species with the highest RF values at the beginning of the rainy season were E.
Table 02: Rf values log molecular weights and molecular weights of Mycoplasma gallisepticum field isolates
When the insects were exposed to pyrethroids films on filter paper, the RF values for permethrin and cypermethrin were significantly different from unity.
By comparing previously reported front reference values (Rf-values) for different dye-precursors from organic extracts from the hypobranchial gland of Nucella lapillus (Cooksey 2001, Cooksey & Withnall 2001) with the Rf values obtained from P.
The TLC separation shows the compounds present in the extract under UV-366 and in some cases there were compounds present with Rf values similar to the antibacterial compounds visible on the bioautograms.
Because no adequate values of the technique used were available before the study, power analyses for the RF values were performed retrospectively to calculate the power that can be reached regarding the observed differences.
The Rf values are given in Table-5 with comparison to standards.