alkanol/dichloromethane

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Source profiles of organic compounds emitted upon combustion of green vegetation from temperate climate forests.

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Biomass burning is an important primary source of particles containing biomarker compounds, which are introduced into smoke primarily by direct volatilization/steam stripping and by thermal alteration based on combustion conditions. This study presents comprehensive organic compound source profiles

Chemical constituents of the fermentation broth of the marine-derived fungus Penicillium roqueforti.

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BACKGROUND The filamentous fungus Penicillium roqueforti is a well-known multifunctional cell factory of high added-value biomolecules. OBJECTIVE The objective of this work was to carry out a detailed analysis of the metabolites present in the culture broth of a new marine-derived Penicillium

Sources of organic compounds in fine soil and sand particles during winter in the metropolitan area of Riyadh, Saudi Arabia.

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Major advances have been made in molecular marker analysis to distinguish between natural and anthropogenic organic matter inputs to the atmosphere. Resuspension of soil and sand by wind is one of the major mechanisms that produces particle dusts in the atmosphere. Soil and sand samples from the

Chemical compositions and sources of organic matter in fine particles of soils and sands from the vicinity of Kuwait city.

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Fine particles in the atmosphere from soil and sand resuspension contain a variety of organic compounds from natural biogenic and anthropogenic matter. Soil and sand samples from various sites near Kuwait city were collected, sieved to retain the fine particles, and extracted with a mixture of

Occurrence and sources of natural and anthropogenic lipid tracers in surface soils from arid urban areas of Saudi Arabia.

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Soil particles contain a variety of natural and anthropogenic organic components, and in urban areas can be considered as local collectors of pollutants. Surface soil samples were taken from ten urban areas in Riyadh during early winter of 2007. They were extracted with dichloromethane-methanol

Composition and sources of organic matter and its solvent extractable components in surface sediments of a bay under serious anthropogenic influences: Daya Bay, China.

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Organic matter of nine surface sediments from the Daya Bay was Soxhlet-extracted with a mixture of 2:1 (v/v) dichloromethane-methanol and separated into five fractions: non-aromatic hydrocarbons, aromatic hydrocarbons, ketones, alcohols, and fatty acids and asphaltenes, and analyzed to determine

Avocado kernels, an industrial residue: a source of compounds with insecticidal activity against silverleaf whitefly

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Fruit processing waste, such as kernels (endocarp + seed) of avocado [Persea americana Mill. (Lauraceae)], could be used as raw material in the preparation of botanical insecticides. In light of this potential, this study assessed the insecticidal action of extracts and fractions from kernels of two

Cuticular waxes from ivy leaves (Hedera helix L.): analysis of high-molecular-weight esters.

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Soluble waxes were extracted from the cuticle of ivy (Hedera helix L.) leaves with dichloromethane in a yield of ca. 13%. The cuticular waxes were directly analysed by GC-MS, high-temperature GC-MS and ESI-MS/MS. The GC-MS analysis showed mostly n-alkanols (45.3%), monoacids (18.8%), triterpenes

Chemical compositions and characteristics of organic compounds in propolis from Yemen.

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Propolis is a gummy material made by honeybees for protecting their hives from bacteria and fungi. The main objective of this study is to determine the chemical compositions and concentrations of organic compounds in the extractable organic matter (EOM) of propolis samples collected from four

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Herbal & Natural Medicine

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