香菇和灵芝中痕量锗的塞曼石墨炉原子吸收光谱法测定  

DETERMINATION OF GERMANIUM IN Lentinus edodes AND Ganoderma lucidum BY ZEAMEN GRAPHITE FURNACE ATOMIC ABSORPTION SPECTROMETRY

作　　者：王少鸥[1] 诸益民[1] 邰海琛 

机构地区：[1]上海市农业科学院测试中心,上海201106

出　　处：《上海农业学报》1998年第1期39-42,共4页Acta Agriculturae Shanghai

摘　　要：用Ta涂层的热解石墨管进行分析，用硝酸镍作为基体改进剂，可使灰化温度高达1300℃，消除基体和抗干扰能力强。方法的绝对灵敏度为11Pg、检出限（2σ）为2．57ng。实际样品的回收率为96．2％～102．2％。The study was carried out for detecting germanium in edible fungi(L. edodesand G. lucidum)by Zeamen graphite furnace atomic absorption spectruometry. Using PGTcoated with tantalum and nickel nitrate (as a matrix modifier), the ashing temperatrue ofgermanium raised to 1300℃,therefore the sensitivity was improved obviously. So it is a simple,fast and accurate method for Ge detection with satisfactory sensitivity and precision.

关 键 词：锗 改进剂 香姑 灵芝 原子吸收光谱法 

分 类 号：S646[农业科学—蔬菜学] O657.31[农业科学—园艺学]