[PDF] Top 20 Method for the determination of concentration and stable carbon isotope ratios of atmospheric phenols

... emissions of volatile organic compounds (VOC) can undergo photooxidation in the atmosphere to produce nu- merous compounds, including a range of low volatility sub- stances that contribute to ... See full document

... that the gross source and sink fluxes for the ocean are underes- timated in these isotopic budgets because only the net ex- change is considered, our calculations indicate that inclusion ... See full document

... with the average ratios for our ...VOC concentration ratios in vehicular emissions cover a range of nearly a factor of 2, the observed average ratios relative to ... See full document

... background concentration in the free troposphere is ...in the free troposphere, containing toluene in significant amounts, stem from the same source (the PBL) and undergo only ... See full document

... only concentration measurements. Stable car- bon isotope ratio measurements have been useful tools in atmospheric chemistry (Gensch et ...2014). The ratio of the 13 C ... See full document

... investigated the seasonal variability of the concentration and the stable isotope com- position of several inorganic and organic matter (OM) reser- ... See full document

... One of the main obstacles for the use of isotope ratio mea- surements for studies of atmospheric SOA formation is the lack of tested and proven ... See full document

... that determination of the function  (t ) with the aid of this equation is possible only in case of its certain ...terms of the series situated on the left ... See full document

... from the empirical study show that browsers prefer the site that is efficient, excellent, and present to them an economic value than the one with a good visual appeal and entertaining ... See full document

... The database contains stable carbon and oxygen isotope measurements made on 80.. speleothems, and supporting metadata to facilitate the interpretation of these records.[r] ... See full document

... emphasize the central part among the other composition, the architect 'in the middle third of the main wall had arranged an extensive ...46p]. The building itself was ... See full document

... determine the influence of aluminium in the amount from about ...on the structure of cast iron treated with cerium mischmetal and subjected to graphitizing modification with 75% ... See full document

... temperature of the sample during heat treatment and heat treatment of the characteristic parameters of the tested bronze samples shown in Figure ...4. The heat ... See full document

... evaluate the tribological properties of materials used for parts of machinery and equipment constituting the friction ...determine the wear resistance and friction ... See full document

... alcohol, and betel quid are the main causes of squamous cell cancers of the upper aerodigestive ...cancers of the oesophagus, head and neck region, and lungs ... See full document

... alleviate the negative effects of traffic ...matter of internalizing a negative ...across the world, and a congestion tax is seldom ...is the case. In order to do so, we estimate ... See full document

... as the extent to which a person views an innovation as offering an advantage over previous ways of performing the same task (Roger, 1983; Agarwal & Prasad, ...day and 7 days a week, it ... See full document

... protect the analytical column. The LC system was operated isocratically at controlled temperature (25 ºC) using a mobile phase of acetonitrile:water (95:5, v/v)/ ammonium acetate (pH ...USA) ... See full document

... demand of a mixing system in a roller mixer is shown in Fig 1. During the mixing cycle the power demand increases with an increase in the surface area of grains covered with clay-water ... See full document

... from the temperature of casting the bronze to the mould on Figure ...From the introduced cross - section of casts from the probe TDAg, it results that it together with ... See full document