澳洲坚果果仁中4种关键微量元素的FAAS法测定
Determination of Four Trace Elements in Macadamia Kernel by Flame Atomic Absorption Spectrometry
柳觐 1倪书邦 1贺熙勇 1牛迎凤 2李开雄1
作者信息
- 1. 云南省热带作物科学研究所,云南景洪666100
- 2. 中国医学科学院药用植物研究所云南分所,云南景洪666100
- 折叠
摘要
为探明澳洲坚果果仁中Fe、Mn、Cu、Zn4种关键微量元素的含量及其测定方法,运用火焰原子吸收分光光度法(FAAS),采用干灰化、混酸消解、微波消解3种不同样品消解方式,对4个澳洲坚果品种果仁中Fe、Mn、Cu、Zn的含量进行了测定.结果表明:Fe、Cu经3种不同消化方式处理后的含量测定结果无显著差异;而Mn、Zn经微波消解处理后的测定值虽然略高于干灰化和混酸消解2种方式,但未达到显著水平;澳洲坚果果仁中4种微量元素的含量为Mn＞Fe＞Zn＞Cu,其中Mn元素含量在品种间的变异较大;在4个供试品种中,‘云澳51号’的Fe含量为最高,而‘云澳58号’的Mn、Cu、Zn 3种微量元素含量均为最高.3种样品消解方式均可用于澳洲坚果果仁微量元素含量的FAAS法测定.
Abstract
In order to investigate the determination method and content of iron,manganese,copper and zinc in the kernel of macadamia,the content of four trace elements in the kernel of four macadamia cultivars were determined by flames atomic absorption spectrometry (FAAS),the sample were decomposed by three ways include dry ashing,acid digestion,microwave digestion,the content of each trace element in different macadamia cultivars were compared.The results showed that the content of iron and copper determined by three decomposition ways had no significant differences,but the content of manganese and zinc which determined by microwave digestion were slightly higher than the other two decomposition ways,but the differences were not significant.The average content were Mn＞Fe＞Zn＞Cu in the kernel of macadamia,the content of manganese showed a significant difference among cultivars.The iron content of ‘YunMac 51 ' wasthe highest and ‘YunMac 58' had the highest content of manganese,copper and zinc.All the three decomposition ways could be used for trace element determination of macadamia kernel by FAAS.
关键词
澳洲坚果/火焰原子吸收分光光度法/微量元素Key words
Macadamia spp./flames atomic absorption spectrometry (FAAS)/trace elements引用本文复制引用
基金项目
云南省应用基础研究计划面上项目(2011FB140)
云南农垦重点科技项目(2013NK02)
出版年
2014
国家科技期刊平台
NSTL
维普
万方数据