食品工业科技2017，Vol.38Issue(18)：275-278,289,5.DOI:10.13386/j.issn1002-0306.2017.18.052
流动注射荧光法测定植物油中脂肪醛
Determination of aliphatic aldehydes in plant oils by flow injection fluorescence method
摘要
Abstract
A flow injection spectrophotometry method for the determination of aldehydes content in vegetable oil was built.The standard substance was adopted by mixed equal-molar nine aldehydes (formaldehyde,acetaldehyde,n-propanal,n-butanal,n-pentanal,n-hexaldehyde,n-heptaldehyde,n-octanal and n-nonanal).The optimal condition for aldehydes determination was obtained by adjusting catalysts,temperature,time,solvents,flow rate,and dosage of reagent,which was suitable to the reaction of aldehydes and 2-naphthylhydrazine to produce the 2-naphthalene hydrazone derivatives under the acid action by self-made flow injection equipment with strong fluorescence-emission at 400 nm.As a result,the linear equation of aliphatic aldehydes was y =26.8x + 42 (r =0.997),with 1.18％ ～ 1.89％ of relative standard deviation (RSD) and 92％ ～ 113％ of recovery rate.The limit of detection(LOD)for this method was 0.02 mmol/L(S/N =3).The method can be applied successfully to the determination of aliphatic aldehydes in plant oils with much simple way,high speed and accuracy.关键词
流动注射分析/荧光法/食用植物油/脂肪醛化合物Key words
flow injection analysis/fluorescence method/edible plant oils/aliphatic aldehydes分类
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龙泽荣,王利涛,刘莉,赵建勇,鹿毅,赵亮,董树清,李辉..流动注射荧光法测定植物油中脂肪醛[J].食品工业科技,2017,38(18):275-278,289,5.基金项目
乌鲁木齐市科技局重点项目(Y141320007). （Y141320007）
