1. N‐alkylpyridinium quaternization for assisting electrospray ionization of sterols in oil by quadrupole‐time of flight mass spectrometry. (20th September 2013) Authors: Wang, Hang; Wang, Haoyang; Zhang, Li; Zhang, Jing; Leng, Jiapeng; Cai, Tingting; Guo, Yinlong Journal: Journal of mass spectrometry Issue: Volume 48:Number 10(2013:Oct.) Page Start: 1101 Record Type: Journal Article View Content: Available online (eLD content is only available in our Reading Rooms) ↗