分光光度法测定紫菜中的碘 |
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引用本文: | 褚衍成,陈健. 分光光度法测定紫菜中的碘[J]. 安庆师范学院学报(自然科学版), 2002, 8(4): 54-55. DOI: 10.3969/j.issn.1007-4260.2002.04.020 |
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作者姓名: | 褚衍成 陈健 |
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作者单位: | 1. 淮北市杨庄矿高级中学,安徽,淮北,235025;2. 淮北煤炭师范学院,安徽,淮北,235000 |
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摘 要: | 用碱溶法使紫菜中的碘以I-形式转移到溶液中,然后在酸性条件下用过氧化氢氧化,四氯化碳萃取,经分光光度标准曲线法测得紫菜中的碘含量大约为126.69 μg,该方法可以用来提取和测得海草中的碘含量,回收率高,简便可靠.
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关 键 词: | 碱溶法 萃取 分光光度法 |
文章编号: | 1007-4260(2002)04-0054-02 |
Determination of the Iodine Content of the Laver by Extraction-Spectrophtometry |
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Abstract: | I- is obtained from the laver by ackaline fusion and then oxidized by H2O2 in acid solution,thus we can determine the iodine content by alkaline extraction spectrophometry,which is about 126.69 ug/g.The method of high accuracy can be used to extract and bedtermine the iodine content of the laver or other seaweed. |
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Keywords: | alkaci fusion iodine extration spectrophometry |
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