砷在食品卫生监督检验中,被列为重点监测的元素,硒是人体必需的微量元素之一,因而引起人们的重视。1　材料与方法1 1　仪器　MLS - 12 0 0MEGA高压微波消解系统(意大利) ;AFS2 2 0 1双道原子荧光计(北京海光仪器厂) ;温控电热板,具CMC标志的玻璃器具。1 2　试剂　砷、硒标准溶? Arsenic in food hygiene supervision and inspection, was listed as the key elements of monitoring, selenium is one of the essential trace elements of the human body, which attracted people’s attention. 1 Materials and methods 1 1 Instrument MLS - 1200MEGA high-pressure microwave digestion system (Italy); AFS2 210 dual-channel atomic fluorescence spectrometer (Beijing Haiguang Instrument Factory); temperature control hot plate, with CMC logo glassware. 1 2 reagent arsenic, selenium standard solution?