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DETERMINATION OF FREE PHENOL IN PHENOL RESOLE RESIN BY GEL PERMEATION CHROMATOGRAPHY
Chemistry Letters, 1973Abstract The free phenol in phenol resole resin was determined by gel permeation chromatography with the high molecular polystyrene as the internal standard. The observed values were in close agreement with that obtained by gas chromatography. The reproducibility was about 4 per cent as the coefficient of variance.
Morio Tsuge +2 more
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Phenol biodegradation by free and immobilized Acinetobacter
Biotechnology Letters, 2002Acinetobacter sp. strain W-17, immobilized on porous sintered glass completely degraded 500 mg phenol l−1 in 40 h, but free cells required 120 h for this to be achieved. Immobilized cells can be used 7 times without losing their activity.
Usama Beshay +3 more
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Low-level Free Phenols in Sicilian Olive Oils
2010Publisher Summary The phenolic fraction of olive oils can be analyzed in different manners: the simple total quantitative determination is carried out by a colorimetric method, and the single phenols qualitative and quantitative analysis by using chromatographic or electrophoretic methods.
SAITTA, Marcello +4 more
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Free phenolic compounds in waters of the Ross Sea
Science of The Total Environment, 2019The presence of free phenolic compounds (PC) in Antarctic sea water has been investigated to explain their source and particle size distribution in the atmospheric aerosols, as determined in our previous research. The sea water samples were filtered to distinguish the PC concentrations in the particulate and dissolved fractions.
R Zangrando +7 more
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Free phenols in chronic renal failure.
Clinical nephrology, 1976Serum total free phenols are elevated in chronic renal failure, acute renal failure and hepatic coma. Being partly protein-bound, phenols behave during dialysis in a similar manner to considerably larger molecules which are not protein-bound. In view of their potential toxicity they should be considered as an alternative to 'middle molecules'. Patients
E N, Wardle, K, Wilkinson
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Free radical scavenging and cytoprotective activities of phenolic antioxidants
Molecular Nutrition & Food Research, 2006AbstractThe free radical scavenging activities of three flavonoids (quercetin, rutin and catechin) and four hydroxycinnamic acids (caffeic, ferulic, sinapic, and chlorogenic acids) were evaluated using both oxygen radical absorbance capacity (ORAC) and lipid peroxidation inhibition capacity (LPIC) assays.
Zhang, Jingli +4 more
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Gas-Free Phenolic Resin for Friction Materials
SAE Technical Paper Series, 2006<div class="htmlview paragraph">Phenolic resins have been widely used as a binder for friction materials such as disk pads and brake linings. Requirements for disk pads are flexibility, heat resistance, low wear and so on.</div> <div class="htmlview paragraph">To solve the above requirements, we have developed various modified resins.
Yoshihiro Matsuo, Shinichi Ozeki
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Gas Chromatographic Determination of Free Phenol and Free Formaldehyde in Phenolic Resins.
Analytical Chemistry, 1964M. P. Stevens, D. F. Percival
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Free phenolic carboxylic acids ofSecale
Chemistry of Natural Compounds, 1985A. P. Volynets +4 more
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Free radical‐scavenging actions of olive oil phenolics
Lipids, 1999VISIOLI, FRANCESCO, Galli C.
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