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Related Experiment Video

Updated: Apr 17, 2026

Isolation and Compositional Analysis of Plant Cuticle Lipid Polyester Monomers
09:47

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[Development of identification method for isopropyl citrate].

Noriko Furusho, Takashi Ohtsuki, Chiye Tatebe-Sasaki

    Kokuritsu Iyakuhin Shokuhin Eisei Kenkyujo Hokoku = Bulletin of National Institute of Health Sciences
    |February 25, 2015
    PubMed
    Summary

    This study introduces a simpler, non-toxic method for identifying isopropyl alcohol and citrate in food additives. The new GC-FID test replaces hazardous mercury compounds and lengthy procedures.

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    Area of Science:

    • Analytical Chemistry
    • Food Safety
    • Organic Chemistry

    Context:

    • Current Japanese food additive standards require two identification tests for isopropyl citrate.
    • These methods involve toxic mercury compounds or time-consuming pretreatment.

    Purpose:

    • To develop simpler, safer identification tests for isopropyl citrate.
    • To replace existing methods using toxic mercury or lengthy procedures.

    Summary:

    • A new identification method using Gas Chromatography-Flame Ionization Detection (GC-FID) was developed for detecting isopropyl alcohol.
    • Isopropyl alcohol can be detected in the distillation step without reflux, showing good linearity (0.1-40 mg/mL).
    • Citrate is identified from the remaining solution post-distillation, simplifying the overall process.

    Impact:

    • The developed tests are simple and avoid toxic materials, improving safety in food additive analysis.
    • This research offers a more efficient and environmentally friendly approach to food additive testing.