离子迁移光谱法
固相微萃取
聚吡咯
化学
色谱法
糠醛
校准曲线
衍生化
萃取(化学)
检出限
质谱法
分析化学(期刊)
气相色谱-质谱法
纤维
羟甲基糠醛
样品制备
电化学
电极
有机化学
物理化学
催化作用
作者
Mahdie Kamalabadi,Elham Ghaemi,Abdorreza Mohammadi,Naader Alizadeh
标识
DOI:10.1016/j.foodchem.2015.02.069
摘要
Furfural (Fu) and hydroxymethylfurfural (HMFu) are extracted using a dodecylbenzenesulfonate-doped polypyrrole coating as a fiber for headspace solid phase microextraction (HS-SPME) method in baby formula samples and detected using ion mobility spectrometry (IMS). Sample pH, salt effect, extraction time and temperature were investigated and optimized as effective parameters in HS-SPME. The calibration curves were linear in the range of 20–300 ng g−1 (R2 > 0.99). Limits of detection for Fu and HMFu were 6 ng g−1 and 5 ng g−1, respectively. The RSD% of Fu and HMFu for five analyses was 4.4 and 4.9, respectively. The proposed method was successfully applied to determine of Fu and HMFu in the different baby formula samples with satisfactory result. The results were in agreement with those obtained using HPLC analysis. The HS-SPME–IMS is precise, selective and sensitive analytical method for determination of Fu and HMFu in baby formula samples, without any derivatization process.
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