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 ?
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.
Based on preliminary experiments, it was found that the cannabinoids exhibited different Rf values in different solvent systems (Table I).
Maximum RF values in homes were most strongly correlated with measurements in the living room (r = 0.
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.
The Rf values showing the activity do not all correlate between the species.