| 主成分-偏最小二乘分光光度法同时测定饲料中的痕量铁、锰、铜、锌 |
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| 引用本文： | 白玲,刘超. 主成分-偏最小二乘分光光度法同时测定饲料中的痕量铁、锰、铜、锌[J]. 分析试验室, 2006, 25(9): 81-83 |
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| 作者姓名： | 白玲 刘超 |
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| 作者单位： | 江西农业大学理学院,南昌,330045;江西师范大学计算机信息工程学院,南昌,330027 |
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| 摘 要： | 痕量Fe^3＋、Mn^2＋、Cu^2＋、Zn^2＋与2-（5-溴-2-吡啶偶氮）．5-二乙氨基苯酚（5-Br-PADAP）和对．（1，1，3，3．四甲基丁基）苯基醚（Triton X-100）在pH8．3发生高灵敏显色反应，所形成的三元胶束络合物的吸收光谱严重重叠。本文采用主成分-偏最小二乘法（PC—PLS）辅助分光光度法成功地测定了合成试样及饲料中上述4种痕量组分。结果表明，PC—PLS法是化学计量学法中一种可适用于基体较复杂的实际试样中痕量组分同时分光光度测定的优良的多元计算方法。
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| 关 键 词： | 铁 锰 铜 锌 主成分-偏最小二乘法 同时测定 |
| 文章编号： | 1000-0720（2006）09-081-03 |
| 收稿时间： | 2005-11-20 |
| 修稿时间： | 2005-11-202006-01-24 |
Spectrophotometric simultaneous determination of trace iron,manganese,copper,zinc in feed Samples by using the principal component-partial least squares method |
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| BAI Ling,LIU Chao. Spectrophotometric simultaneous determination of trace iron,manganese,copper,zinc in feed Samples by using the principal component-partial least squares method[J]. Chinese Journal of Analysis Laboratory, 2006, 25(9): 81-83 |
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| Authors: | BAI Ling LIU Chao |
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| Affiliation: | 1. College of Natural Science, Jiangxi Agricultural University, Nanchang 330045; 2. College of computer Science and Technology, Jiangxi Nomal University, Nanchang 330027 |
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| Abstract: | There are highly sensitive chromogenic reactions of trace Fe~(3+),Mn~(2+),Cu~(2+),Zn~(2+) with 2-(5-bromo-2-pyridylazo)-5-diethylaminophenol(5-Br-PADAP) and Triton X-100 in pH 8.3 buffer solution,but their absorption peaks are seriously overlapped.In this paper,principal component-partil least squares(PC-PLS) method was used as mathematical model to resolve the overlapping spectra.The proposed method are applied to the simultaneous determination of iron,manganese,copper,zinc in sythetic samples and also in feed samples with satisfactory results. |
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| Keywords: | Iron Manganes Copper Zinc Principal component-partial least squares Simultaneous determination |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
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