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应用ＹＡＥ—２原子吸收解析仪自动萃取食品中的镉．结果表明，镉在ＰＨ８～９的氨缓冲溶液存在的条件下被ＥＤＴＡ富集柱富集，用 １ｍｏｌ／Ｌ硝酸溶液作洗脱载液，测定食品镉含量在 １００～２０００μｇ／ｋｇ之间时，线性关系成立．标准差为０．００４２ ｍｇ／ｋｇ，均值为 ０．２１７ ｍｇ／ｋｇ，变异系数 １．９３％．检出限为 ５ μｇ／Ｌ．本方法适用于各种食品中镉的分析，是一种在线高速解吸的分离分析技术．
Application of YAE-2 atomic absorption spectrometry automatic extraction of cadmium in food. The results showed that cadmium was enriched by EDTA-enriched column in the presence of ammonia buffer solution of pH8-9. When 1mol / L nitric acid solution was used as elution carrier and the content of cadmium in food was between 100-2000μg / kg, The linear relationship is established. The standard deviation was 0.0042 mg / kg with a mean of 0.217 mg / kg and a coefficient of variation of 1.93%. The detection limit is 5 μg / L. The method is suitable for the analysis of cadmium in various foods and is an online high-speed desorption separation and analysis technique.