Determination of Nine Mineral Elements in Hulless Barley by Ultraviolet Spectrophotometry and Flame Atomic Absorption Spectrometry
文献类型：期刊论文
| 作者 | Liu Jin1,2; Zhang Huai-gang1 |
| 刊名 | spectroscopy and spectral analysis
 |
| 出版日期 | 2010-04-01 |
| 卷号 | 30期号:4页码:1126-1129 |
| 关键词 | Ultraviolet spectrophotometry Flames atomic absorption spectrometry (FAAS) Hullessbarley Mineral elements Content |
| ISSN号 | 1000-0593 |
| 中文摘要 | the contents of nine mineral elements, including sulphur, zinc, calcium, magnesium, potassium, sodium, iron, copper and manganese in five hulless barley (hordeum vulgare l. var. nudum hook. f.) lines were determined by ultraviolet spectrophotometry and flames atomic absorption spectrometry (faas). for the determination of sulphur, the samples were dissolved by magnesia and anhydrous sodium carbonate at 250 degrees c for 0. 5 h and at 550 degrees c for 3 h in the muffle furnace, and then a certain amount of barium chloride was put into the sample solution for colorimetry of the uv-vs spectrophotometer. for the determination of other eight mineral elements, all of the samples were dissolved by a kind of incinerating method: first, the sample was put into the muffle furnace at 250 degrees c for 0. 5 h and at 550 degrees c for 2. 5 h, then two droplets of 50%hno(3) were distributed into each sample, and the last step was putting the sample into the muffle furnace at 550 degrees c for 0. 5 h. and then all of the ash was dissolved by 50%hno(4) to 50 milliliter and determined by flames atomic absorption spectrometry. the precision, accuracy, repeatability and stability of the method were discussed too. the results showed that the relative standard deviations (rsd) were between 1. 2% and 3. 7%; the average recoveries were 97. 44%-101. 52% and the relative standard deviations (rsd) of sample determination were 1. 3%-3. 8%. the repeatability experiment showed that the relative standard deviations (rsd) were 2. 6%-6. 1%. and the content of each mineral element was the same after 24 hours; all these showed that the method has a good precision, accuracy, repeatability and stability. in all the hulless barley samples, the average contents were in the order of k>s>mg >ca>fe>na>zn>mn>cu, and the contents of zinc, iron and manganese closely related to people's health were relatively higher than other crops. the data of the experiment could provide an accurate and credible evidence for the deeper exploitation of the hulless barley. |
| 英文摘要 | the contents of nine mineral elements, including sulphur, zinc, calcium, magnesium, potassium, sodium, iron, copper and manganese in five hulless barley (hordeum vulgare l. var. nudum hook. f.) lines were determined by ultraviolet spectrophotometry and flames atomic absorption spectrometry (faas). for the determination of sulphur, the samples were dissolved by magnesia and anhydrous sodium carbonate at 250 degrees c for 0. 5 h and at 550 degrees c for 3 h in the muffle furnace, and then a certain amount of barium chloride was put into the sample solution for colorimetry of the uv-vs spectrophotometer. for the determination of other eight mineral elements, all of the samples were dissolved by a kind of incinerating method: first, the sample was put into the muffle furnace at 250 degrees c for 0. 5 h and at 550 degrees c for 2. 5 h, then two droplets of 50%hno(3) were distributed into each sample, and the last step was putting the sample into the muffle furnace at 550 degrees c for 0. 5 h. and then all of the ash was dissolved by 50%hno(4) to 50 milliliter and determined by flames atomic absorption spectrometry. the precision, accuracy, repeatability and stability of the method were discussed too. the results showed that the relative standard deviations (rsd) were between 1. 2% and 3. 7%; the average recoveries were 97. 44%-101. 52% and the relative standard deviations (rsd) of sample determination were 1. 3%-3. 8%. the repeatability experiment showed that the relative standard deviations (rsd) were 2. 6%-6. 1%. and the content of each mineral element was the same after 24 hours; all these showed that the method has a good precision, accuracy, repeatability and stability. in all the hulless barley samples, the average contents were in the order of k>s>mg >ca>fe>na>zn>mn>cu, and the contents of zinc, iron and manganese closely related to people's health were relatively higher than other crops. the data of the experiment could provide an accurate and credible evidence for the deeper exploitation of the hulless barley. |
| WOS标题词 | science & technology ; technology |
| 类目[WOS] | spectroscopy |
| 研究领域[WOS] | spectroscopy |
| 关键词[WOS] | food samples ; durum-wheat ; flour |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000276506100059 |
| 公开日期 | 2011-12-13 |
| 源URL | [http://ir.nwipb.ac.cn//handle/363003/1730]  |
| 专题 | 西北高原生物研究所_中国科学院西北高原生物研究所 |
| 作者单位 | 1.Chinese Acad Sci, NW Inst Plateau Biol, Xining 810001, Peoples R China 2.Chinese Acad Sci, Grad Univ, Beijing 100049, Peoples R China |
| 推荐引用方式 GB/T 7714 | Liu Jin,Zhang Huai-gang. Determination of Nine Mineral Elements in Hulless Barley by Ultraviolet Spectrophotometry and Flame Atomic Absorption Spectrometry[J]. spectroscopy and spectral analysis,2010,30(4):1126-1129. |
| APA | Liu Jin,&Zhang Huai-gang.(2010).Determination of Nine Mineral Elements in Hulless Barley by Ultraviolet Spectrophotometry and Flame Atomic Absorption Spectrometry.spectroscopy and spectral analysis,30(4),1126-1129. |
| MLA | Liu Jin,et al."Determination of Nine Mineral Elements in Hulless Barley by Ultraviolet Spectrophotometry and Flame Atomic Absorption Spectrometry".spectroscopy and spectral analysis 30.4(2010):1126-1129. |
入库方式： OAI收割
来源：西北高原生物研究所
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