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Abstract

A novel HPLC-MS method was established, using a synthesized rhodamine B hydrazide (RBH) as the new pre-colunm derivatization reagent. After extracted with methanol and derivatized with RBH, the samples were determined by high-performance liquid chromatography(HPLC) coupled with mass spectrometry(MS). The results showed that the reagent RBH has a good sensitivity for mass spectrometry detection, and the derivatization reaction of benzaldehyde was efficient and specific. The benzaldehyde showed a good linear relationship in the range of 0.05~6.00 ng/mL, and the correlation coefficient was 0.996 2. The detection limits and quantitation limits of the method were 0.80×10-3 ng/mL and 2.71×10-3 ng/mL, respectively. The standard recovery rate was 93.3%~104.0%, and the relative standard deviation was 0.8%~2.6%. The method was high selectivity and high sensitivity, and suitable for the determination of benzaldehyde residues in honey.

Publication Date

12-28-2018

First Page

38

Last Page

42,59

DOI

10.13652/j.issn.1003-5788.2018.12.007

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