[PDF] Top 20 Ambiental volatile organic compounds in the megacity of São Paulo.
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Ambiental volatile organic compounds in the megacity of São Paulo.
... resumes the mean concentrations of formaldehyde and acetaldehyde in São Paulo atmosphere, reported in the literature, inclu- ding those found in this ...study. The ... See full document
5
An analytical system for the measurement of stable hydrogen isotopes in ambient volatile organic compounds
... (1) the suitability of the adsorbent material in the TDS, (2) reproducibility, stability, linearity and detection limit, (3) an influence of the pyrolysis on the δ ... See full document
12
Volatile organic compounds (VOC) variation in Croton fl oribundus (L.) Spreng. related to environmental conditions and ozone concentration in an urban forest of the city of São Paulo, São Paulo State, Brazil
... RESUMO - (Variação dos compostos orgânicos voláteis (COV) de Croton fl oribundus (L.) Spreng. às condições ambientais e concentração de ozônio em fl oresta urbana de São Paulo, SP, Brasil). Os compostos orgânicos ... See full document
8
Volatile organic compounds in induced plant defense against herbivorous insects.
... VOLATILE ORGANIC COMPOUNDS IN INDUCED PLANT DEFENSE AGAINST HERBIVOROUS ...INSECTS. The identification and manipulation of chemical compounds involved in vital ... See full document
11
Concentration maxima of volatile organic iodine compounds in the bottom layer water and the cold, dense water over the Chukchi Sea in the western Arctic Ocean: a possibility of production related to degradation of organic matter
... Grebmeier, J. M., Bluhm, B. A., Cooper, L. W., Danielson, S., Arrigo, K. R., Blan- chard, A. L., Clarke, J. T., Day, R. H., Frey, K. E., Gradinger, R. R., Kedra, M., Konar, B., Kuletz, K. J., Lee, S. H., Lovvorn, J. R., ... See full document
34
Rev. bras. farmacogn. vol.27 número6
... differentiations of cells, which allows the establishment of metabolic pathways leading to the biosynthesis of secondary metabolites (Turner et ...2008). In particular, ... See full document
12
Rev. bras. farmacogn. vol.22 número4
... Volatile organic compounds obtained by different extraction procedures (hydrodistillation, solvent extraction and headspace solid-phase microextraction) provide complementary information of ... See full document
8
Microextração em Fase Sólida (MEFS) de compostos voláteis produzidos por Sporidiobolus salmonicolor (CBS 2636)
... aim of the present study was the assessment of volatile organic compounds produced by Sporidiobolus salmonicolor (CBS 2636) using methyl and ethyl ricinoleate, ricinoleic ... See full document
6
Snowpack concentrations and estimated fluxes of volatile organic compounds in a boreal forest
... chemistry the release of the VOCs from the snowpack into the atmosphere is more important than the flux from the forest floor to the snowpack or the fate ... See full document
12
SPME Fiber Evaluation for Volatile Organic Compounds Extraction from Acerola
... 1b, the response surface graph for the CW/DVB fiber is shown, and the interaction of the most significant variables shows that the extraction temperature influenced more than ... See full document
9
Braz. Dent. J. vol.25 número2
... (3,5). The analysis of some chemical reactions of organic tissues and NaOCl conducted so far are shown in Figure 4A-C ...(5). The interpretation of these chemical ... See full document
8
Estud. av. vol.26 número74 en a15v26n74
... (2002), the gases emitted by Ficus benjam- ina L., an abundant species in the city of são Paulo, were chemically analyzed to characterize the emission of oxygenated ... See full document
9
Rev. Bras. Geof. vol.26 número1
... profiles of GPR (Ground Penetrating Radar) and Electric Tomography (Electric resistivity), as well as Volatile Organic Compounds VOC sampling, had been made in a locomotives fuel supply ... See full document
1
Quím. Nova vol.37 número2
... use of the present methodology for biomass production, it was not possible to detect potential bioactive toxic compounds in the myce- lia of ...nor in the ... See full document
23
Stable carbon isotope ratios of ambient aromatic volatile organic compounds
... with the average ratios for our ...ratios in vehicular emissions cover a range of nearly a factor of 2, the observed average ratios relative to benzene are consistently at the ... See full document
18
Chemical variability of volatile and semi-volatile organic compounds in native populations of Maytenus ilicifolia.
... VARIABILITY OF VOLATILE AND SEMI-VOLATILE ORGANIC COMPOUNDS IN NATIVE POPULATIONS OF Maytenus ...on the chemical distribution of volatile and ... See full document
4
Head Space-Trap GC-MS method development and validation for the analysis of volatile organic compounds in water samples
... instrumentation of P&T, the methodology has some important ...evaporation of water thus water is inevitably transferred to the GC during the trap desorption ...However the ... See full document
99
Validation of a method for the analysis of volatile organic compounds in water
... from the matrix by fused silica fiber coated with a polymeric stationary ...performed in two ways, immersion or direct sampling and head space sampling ...(HS-SPME). In direct sampling the ... See full document
156
Vehicular emission of volatile organic compounds (VOCs) from a tunnel study in Hong Kong
... emissions in tunnels, few have included calculations of emission fac- ...summary of literature data for selected VOCs are shown in Table ...Generally, the emission factors from our ... See full document
14
Urinary Volatile Organic Compounds for the Detection of Prostate Cancer.
... because of their complementary nature ...has the virtue of simplicity when it works, whereas, and in contrast, the Random Forest is a powerful ensemble approach which may do well when ... See full document
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