| 氢化物发生原子荧光法测定大豆卵磷脂中的砷 |
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| 引用本文： | 邢进,李知岩,佟白,苗壮. 氢化物发生原子荧光法测定大豆卵磷脂中的砷[J]. 中国油脂, 2005, 30(1): 54-56 |
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| 作者姓名： | 邢进 李知岩 佟白 苗壮 |
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| 作者单位： | 齐齐哈尔大学,161006,黑龙江省齐齐哈尔市 |
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| 摘 要： | 采用氢化物发生原子荧光法测定大豆卵磷脂中的砷,确定了仪器的最佳条件,探讨了还原剂溶液浓度介质酸浓度,预还原剂,载气流量等对测定砷的影响.在选定的操作条件下,砷的最低检出限为0.29 ng/mL,相对标准偏差为2.3%.用建立的方法测定大豆卵磷脂中的砷,操作简单、快速、灵敏度高.
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| 关 键 词： | 大豆卵磷脂 断续流动 氢化物发生 原子荧光法 砷 |
| 文章编号： | 1003-7969(2005)01-0054-03 |
| 修稿时间： | 2004-03-29 |
Determination of arsenic in lecithins by hydride generation atomic fluorescence spectrometry |
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| XING Jin,LI Zhi-yan,TONG Bai,MIAO Zhuang. Determination of arsenic in lecithins by hydride generation atomic fluorescence spectrometry[J]. China Oils and Fats, 2005, 30(1): 54-56 |
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| Authors: | XING Jin LI Zhi-yan TONG Bai MIAO Zhuang |
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| Abstract: | The hydride generation atomic fluorescence spectrometric method was adopted for the determination of arsenic in lecithins.The operating conditions of the instrument were optimized.The factors affecting the hydride generation,such as the medium of acid,the amounts of potassium borohydride etc.were investigated.In given conditions,the limit of detection is 0.29 ng/mL,the relative standard deviation is 2.3%.The method has the feature of easy operation,fast speed and sensitivity and it has been applied to the analysis of arsenic in lecithins with satisfactory results. |
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| Keywords: | lecithins intermittent flow hydride generation atomic fluorescence spectrometry arsenic |
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