| 玉米中氟成分标准物质的研制 |
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| 引用本文： | 吉荣娣,杨瑞康,曹守仁,全笑江,史乃捷,应波,秦耘.玉米中氟成分标准物质的研制[J].卫生研究,1990(6). |
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| 作者姓名： | 吉荣娣 杨瑞康 曹守仁 全笑江 史乃捷 应波 秦耘 |
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| 作者单位： | 中国预防医学科学院环境卫生与卫生工程研究所
(吉荣娣，曹守仁，全笑江，应波)，国家标准物质研究中心
(杨瑞康，史乃捷)，中国预防医学科学院环境卫生与卫生工程研究所(秦耘) |
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| 摘 要： | 本文根据目前国内煤烟氟污染监测工作中对质量控制的要求,研制了玉米中氟成分标准物质(两种氟浓度)。该标准物质经均匀性检查证明,样品是均匀的,经稳定性考察稳定期已达一年。采用了三种原理不同的准确、可靠方法(离子色谱法、电极法、比色法)定值。高、低浓度玉米标样的保证值和不确定度分别为33.7±2.2和1.91±0.18μg/g。玉米氟成分标准物质并可代替其它类似生物标准物质使用,本标准物质经有关部门使用反映良好。
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| 关 键 词： | 玉米 氟 标准参考物 |
Preparation and Certification of Fluoride Composition in Corn Reference Materials |
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| Ji Rongdi et al..Preparation and Certification of Fluoride Composition in Corn Reference Materials[J].Journal of Hygiene Research,1990(6). |
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| Authors: | Ji Rongdi |
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| Institution: | Institute of Environmental Health and Engineering Chinese Academy of Preventive Medicine |
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| Abstract: | Corn reference materials were prepared and certified for fluoride con-
tent(two concentrations)according to the need of analytical quality con-
trol in monitoring coal smoke fluoride pollution.The reference materi-
als were homogenous and stable through the examinations of homogeneity
and stability of samples.Its stable period is more than one year.Certifi-
cation of two kinds of reference materials were carried out by three analy-
tical techniques,i.e high performance ion chromatography,ion selective
electrode and spectrophotometry.The guarantee value and uncertainty of
corn reference materials(high and low concentration)are 33.7±2.2 and
1.91±0.81 μg/g respectively.The preparation of corn reference material
filled the blank of reference materials containing fuoride in China.The
responses of users to this reference materials were good. |
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| Keywords: | corn fluoride reference materials |
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