Chemical Composition of Natural Colophony from Pinus Brutia and Comparison with Synthetic Colophony

Photosensitivity from colophony in a case of chronic actinic dermatitis associated with contact allergy from colophony.

Sir, applying colophony 0.02% in white petrolatum or the vehicle alone. They were similar to each other at 24 h after irradiation, Chronic actinic dermatitis (1) is an idiopathic photosensitivity disorder.A high incidence of a previous chronic contact allergy while `̀ MEDs’’ at 48 h after irradiation upon applying colophony were de® nitely lower than those upon applying white caused by several m...

Specific IgE to colophony?

BACKGROUND Colophony (rosin) is a natural product obtained from coniferous trees. It is used in a diverse range of products such as adhesives, ink, paints and soldering fluxes. Some workers exposed to colophony during soldering can develop occupational asthma; at present, no specific IgE test is available to assess sensitization to colophony. METHODS Serum samples were obtained from exposed s...

Occupational asthma due to unheated colophony.

Controlling health risks from rosin (colophony) based solder fluxes - indg249

Identification of a possible biomarker for colophony exposure.

Colophony is known to cause occupational asthma and dermatitis. Biological monitoring may be useful in assessing exposure. This paper describes a method for the analysis of dehydroabietic acid in urine and its potential use as a marker of colophony exposure. The method involves hydrolysis, solvent extraction, derivatization and analysis by gas chromatography-mass spectrometry. Twenty-eight work...