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The addition of organic solvents (light aliphatic, heavy aliphatic and aromatic hydrocarbons) in Brazilian gasoline is unfortunately very frequent, and this illicit practice impares gasoline quality.
      
Gas chromatography (GC) and gas chromatography coupled to mass spectrometry (GC-MS) analyses can be used as a procedure to improve the detection of adulterated gasoline.
      
However, a single GC analysis can detect an adulterated gasoline, and so decrease the number of adulterated samples approved as presenting good quality.
      
An analytical system based on the HPLC-ECL principle was developed for the analysis of NPAHs in extracts of diesel and gasoline engine exhaust particulates with minimal sample preparation.
      
Screening Brazilian Automotive Gasoline Quality through Quantification of Saturated Hydrocarbons and Anhydrous Ethanol by Gas Ch
      
In this paper a set of Brazilian commercial gasoline representative samples from S?o Paulo State, selected by HCA, plus six samples obtained directly from refineries were analysed by a high-sensitive gas chromatographic (GC) method ASTM D6733.
      
This correlation showed that the GC method, together with HCA and PCA, could be employed as a screening technique to determine compliance with the prescribed legal standards of Brazilian gasoline.
      
Uncertainty is the character of cassava yield, cost of cassava plant, cassava price, tax rate and gasoline price, and the economical performance of the project is determined by these aspects.
      
Case studies were presented on gasoline-powered motorbikes (M-bike) and electricity-powered electric bike (E-bike).
      
The liquid hydrocarbons thus prepared contain 96-98% paraffins and olefins of the gasoline fraction.
      
Experiments on gasoline octane number prediction demonstrate that boosting the modified PLS algorithm has better general performance over the PLS algorithm.
      
Thus, it is now competitive for blending with gasoline, and several companies are working to build the first plants.
      
Fuel characteristics have been determined for a number of ester-gasoline blends with promising results for lowering Reid vapor pressure and raising octane numbers.
      
Microorganisms isolated from a soil sample collected from a gasoline filling station (located in Guwahati) were tested for their pyrene- and anthracene-degrading potential.
      
The worker groups were exposed to tetraethyl lead (TEL) mainly by inhalation, but motor mechanics received additional exposure by skin because of hand cleansing with gasoline.
      
Fresh gasoline emissions, not paved road dust, alter cardiac repolarization in ApoE-/- mice
      
We compared electrocardiographic effects of fresh gasoline engine emissions with resuspended paved road dust in a mouse model of coronary insufficiency.
      
T-wave area exhibited significant deviation from baseline values during exposure to gasoline exhaust particulates, but not to either concentration of road dust or gasoline emissions sans particulates.
      
Gasoline-exposed mice demonstrated elevated plasma endothelin-1, but did not cause systemic inflammation.
      
The absence of ECG effects for both very high concentrations of road dust PM and equivalent concentrations of the vapor/gas phase of gasoline engine exhaust further indicate the specific risk conferred by fresh vehicular PM.
      
 

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