English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Plus annual

Presents the access of premium content as premium feature

Premium Content

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Plus monthly

Global: Zendy Tools annual

Global: Zendy Tools monthly

Global: Zendy Free Plan

Semiochemicals (compounds used for chemical communication within and between species) are usually produced in tiny amounts that vary from picograms to nanograms. As a consequence, pheromones are rarely isolated in quantities sufficient to carry out the full range of spectroscopic tests (1H and 13C NMR, infrared, and mass spectrometry) routinely used in structural organic analysis. Pheromone identifications predominantly rely on gas chromatography coupled with mass spectrometry (GC-MS) and electroantennographic detection (GC-EAD) (Struble & Arn, 1984). The GC-EAD analysis, where insect antenna is used as specific biological detector, helps to focus the identification effort only on a particular part of the chromatogram. Quite often, however, the GC-EAD indicates an activity in chromatogram areas where FID or MS detects no compound (Svatos et al., 1999, 2006; Kalinova et al., 2006) or the active compound is overlapped by higher amount of nonactive one(s).

intech ebooks

Chiral and Nonchiral GC×GC/TOFMS Analysis of Natural Compounds: The Case of Possible Aggregation Pheromones of Chinese Bark Beetles Ips shangrila and Ips nitidus