Olefins determination

The HOMO amplitude of olefins determines (Sect 3.4 in Chapter Elements of a Chemical Orbital Theory by Inagaki in this volume) which carbon atom attracts... 

Their interactions with the more hindered side of an asymmetrical olefin determine the orientation of the substrate during its approach to the metal-oxo bond and the subsequent enantiofacial selective oxygen transfer. 

Relative Rates of Addition of Hydrogen Atoms to Olefins Determined by Various Techniques... 

Clark, J. (2004) Pushing the frontiers of olefin determination in gasoline. Petrol Industry News, June/July 34-35. www.petroindustrynews.eom/pdf/pin/2004/06/pin200406 034 035.pdf... 

In the analysis of the products of catalytic cracking of petroleum the deviation of the results from the average values in six experiments did not exceed 1.9% for completely separated compounds for olefins determined by the subtraction method this value fluctuated between 2 and 9%. 

The use of chemisorption allows the selectivity to be increased considerably, which usually permits acceleration of separations. Janak was one of the first to apply chemisorption for analytical separation purposes [98]. For example, for hydrogen analysis he used a zeolite the surface of which was coated with palladium [98], and for olefin determinations he used a zeolite in which sodium was substituted with silver [99]. Duffield and... 

JIS K 2605-96. Petroleum distillates and commercial aliphatic olefins - Determination of bromine number... 

Usually, there is a large variation in results for olefins determined by the FIA method in different laboratories, as shown in Table 3. The olefins content varies from 1.1 to 6.2vol%, the aromatic content ranges from 34.4 to 44.4vol% and the saturate content from 54.3 to 63.5vol%. The SPE results, 60.8wt% for saturates, 4.3wt% for olefins and 34.9wt% for aromatics, fall well within the range of these round robin FIA test results. 

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