Direct and accurate purity evaluation for isovanillin conversion to HMCA through aldol condensation by using RID and its comparison with UV detection

IF 5.3 2区化学 Q2 CHEMISTRY, MULTIDISCIPLINARY

Arabian Journal of Chemistry Pub Date : 2024-11-13 DOI:10.1016/j.arabjc.2024.106054

Canbiao Zeng , Jine Lai , Huiting Lin , Guangying Ye , Yongsheng Chen , Feng Hu , Zaihua Wang , Rian Yan

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引用次数: 0

Abstract

As an important intermediate of Advantame, 3-hydroxy-4-methoxy-cinnamaldehyde (HMCA) is derived from isovanillin by Aldol reaction. The HPLC-UV method was initially established in acetonitrile/water for the separation and quantification of two compounds. UV-chromophores rapidly reach plateauing effect and limit linear regression range below 1.00 mg/mL at UV 210,280 and 340 nm. HPLC-RID with wider range manner was established. The solubility assay of HMCA and isovanillin was investigated for working range limit for the RID under different mobile phase acetonitrile ratios. RID are sensitive enough as UV at micrograms level in methodology comparison. Wider working range and universal response of RID facilitate the purity evaluation. RID detection showed reliable and precise performance as UV in method precision, stability (as all RSDs < 2 %), and similar recovery for accuracy (99.99–101.94 %). The proposed RID method was applied for purity evaluation by using area for direct calculation. The actual purity values had a high correlation with the RID area response directly, and the wavelength complexity resulted in diverse purity evaluations in UV method.

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来源期刊

Arabian Journal of Chemistry CHEMISTRY, MULTIDISCIPLINARY-

CiteScore

10.80

自引率

3.30%

发文量

763

审稿时长

63 days

期刊介绍： The Arabian Journal of Chemistry is an English language, peer-reviewed scholarly publication in the area of chemistry. The Arabian Journal of Chemistry publishes original papers, reviews and short reports on, but not limited to: inorganic, physical, organic, analytical and biochemistry. The Arabian Journal of Chemistry is issued by the Arab Union of Chemists and is published by King Saud University together with the Saudi Chemical Society in collaboration with Elsevier and is edited by an international group of eminent researchers.