- Stable isotope labeling-solid phase extraction-mass spectrometry analysis for profiling of thiols and aldehydes in beer.
Stable isotope labeling-solid phase extraction-mass spectrometry analysis for profiling of thiols and aldehydes in beer.
Food chemistry (2017-08-03)
Shu-Jian Zheng, Ya-Lan Wang, Ping Liu, Zheng Zhang, Lei Yu, Bi-Feng Yuan, Yu-Qi Feng
PMID28764013
ABSTRACT
In this study, we developed a strategy for profiling of thiols and aldehydes in beer samples by stable isotope labeling-solid phase extraction-liquid chromatography-double precursor ion scan/double neutral loss scan-mass spectrometry analysis (SIL-SPE-LC-DPIS/DNLS-MS). A pair of isotope reagents (ω-bromoacetonylquinolinium bromide, BQB; ω-bromoacetonylquinolinium-d