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/

Zendy Open

Presents the pdf analysis as premium feature

PDF Analysis

Insights

Presents the summarisation as premium feature

Summarisation

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the zaia usage as premium feature

ZAIA

Zendy Tools

Zendy Plus

Presents the access of premium content as premium feature

Premium Content

Short-chain organic acids from agricultural products are simultaneously extracted and derivatized using methanolic hydrochloric acid. Acetic, isobutyric, butyric, isovaleric, valeric, hexanoic, 3-methylvaleric, heptanoic, and nonanoic acids are quantitated using purge and trap gas chromatography with selected ion monitoring mode mass spectrometry. Flue-cured, burley, and oriental tobacco varieties are compared based on their volatile organic acid content. Commercial coffee, tea, and three cigarette brands are analyzed, and their differences are evaluated to demonstrate the utility of this technique for natural product analysis.

journal of chromatographic science

Determination of Volatile Acids in Tobacco, Tea, and Coffee Using Derivatization—Purge and Trap Gas Chromatography—Selected Ion Monitoring Mass Spectrometry