Methods:Determine the content of trace elements sueh as Cu,Zn,Fe,Mn,Ca,Mg,etc in gastric fluid by atomic absorption spectroscopy(AAS)methed.

• 方法 :采用原子吸收分光光度计 ,GFA-4B石墨炉原子化器 ,无火焰原子吸收光谱法测定胃液中 Cu,Fe,Mn,Ca,Mg等元素的含量。