超声波辅助提取-悬浮液进样-FAAS测定银杏叶中微量元素

doi:10.7506/spkx1002-6630-201018064

食品科学 ›› 2010, Vol. 31 ›› Issue (18): 275-277.doi: 10.7506/spkx1002-6630-201018064

超声波辅助提取-悬浮液进样-FAAS测定银杏叶中微量元素

林建原，胡侃侃，顾龙飞

浙江万里学院生物与环境学院

收稿日期:2010-02-01 出版日期:2010-09-25 发布日期:2010-12-29
通讯作者: 林建原 E-mail:linjianyuan@yahoo.com.cn
基金资助:
浙江省科技厅项目(2009C35011)

Determination of Trace Elements in Ginkgo Leaves by Flame Atomic Absorption Spectrometry Coupled with Suspension Injection and Ultrasound-assisted Extraction

LIN Jian-yuan，HU Kan-kan，GU Long-fei

College of Biological and Environmental Science, Zhejiang Wanli University, Ningbo 315100, China

Received:2010-02-01 Online:2010-09-25 Published:2010-12-29
Contact: LIN Jian-yuan E-mail:linjianyuan@yahoo.com.cn

摘要/Abstract

摘要：

将超声波辅助提取与悬浮液进样技术相结合，采用火焰原子吸收光谱法(FAAS)测定银杏叶中的微量元素的含量。在最佳仪器条件下对介质的影响、化学干扰、超声波时间、检测限及加标回收率进行考察。结果表明：相对标准偏差小于2.2%，回收率97.8%～104%。方法简便、快速，可用于银杏叶中批量微量元素的准确测定。

关键词: 悬浮液进样, 超声波辅助提取, 火焰原子吸收光谱法, 微量元素, 银杏叶

Abstract:

Flame atomic absorption spectrometry (FAAS) coupled with ultrasound-assisted extraction and suspension sample injection was used to determine the contents of trace elements in ginkgo leaves. FAAS working parameters, suspension medium and length of ultrasonic treatment time were optimized and the eliminating effect of SrCl2 addition on the disturbance from Al, Si and P was evaluated. Meanwhile, two analytical figures of merit, namely limit of detection and spike recovery, were characterized. The relative standard deviation of each element was less than 2.2% and recovery rate of each sample was in the range of 97.8% to 104%. The method is simple, rapid and accurate and consequently, provides a promising method for the determination of trace elements in ginkgo leaves.

Key words: suspension sample injection, ultrasound-assisted extraction, flame atomic absorption spectrometry, trace element, ginkgo leaf

中图分类号:

O657.39

林建原，胡侃侃，顾龙飞. 超声波辅助提取-悬浮液进样-FAAS测定银杏叶中微量元素[J]. 食品科学, 2010, 31(18): 275-277.

LIN Jian-yuan，HU Kan-kan，GU Long-fei. Determination of Trace Elements in Ginkgo Leaves by Flame Atomic Absorption Spectrometry Coupled with Suspension Injection and Ultrasound-assisted Extraction[J]. FOOD SCIENCE, 2010, 31(18): 275-277.

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超声波辅助提取-悬浮液进样-FAAS测定银杏叶中微量元素

Determination of Trace Elements in Ginkgo Leaves by Flame Atomic Absorption Spectrometry Coupled with Suspension Injection and Ultrasound-assisted Extraction

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