Determination of Seven N-Nitrosamines in Ready-to-Eat Fish Products by GC-MS/MS with Alkali-Treatment Coupled Salt-Assisted Dispersive Liquid-Liquid Microextraction
College of Food Science and Engineering/Beijing Laboratory of Food Quality and Safety/ Beijing Key Laboratory of Detection and Control of Spoilage Microorganisms and Pesticide Residues in Agricultural Products, Beijing University of Agriculture, Beijing 102206, China