低场核磁共振结合主成分分析法快速检测掺假牛乳
以掺假牛乳样品为低场核磁共振检测对象,利用主成分分析法（PCA）分析处理Carr-Purcell-Meiboom-Gill（CPMG）序列的检测数据,旨在探求一种能有效分析处理样品弛豫数据的快速方法,并用于牛乳品质的监控。对几种常见掺假形式的（掺入水、食盐、尿素、豆浆等）牛乳样品、复原乳以及纯牛乳样品进行了检测和评价。试验结果表明：纯牛乳和掺入不同物质的掺假牛乳在主成分得分图上可以得到很好的区分;纯牛乳、复原乳及其混合乳也得到了有效的辨识;同时各种掺假牛乳样品随掺假物质的掺加比例在图中呈规律性分布。PCA法可用于快速分析处理低场核磁共振数据,低场核磁共振结合PCA法在乳制品的质量控制及评价中具...
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| Published in | Nong ye gong cheng xue bao Vol. 26; no. 9; pp. 340 - 344 |
|---|---|
| Main Author | |
| Format | Journal Article |
| Language | Chinese |
| Published |
浙江工商大学食品质量与安全系,浙江省食品安全重点实验室,杭州,310035
2010
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| Subjects | |
| Online Access | Get full text |
| ISSN | 1002-6819 |
| DOI | 10.3969/j.issn.1002-6819.2010.09.056 |
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| Abstract | 以掺假牛乳样品为低场核磁共振检测对象,利用主成分分析法（PCA）分析处理Carr-Purcell-Meiboom-Gill（CPMG）序列的检测数据,旨在探求一种能有效分析处理样品弛豫数据的快速方法,并用于牛乳品质的监控。对几种常见掺假形式的（掺入水、食盐、尿素、豆浆等）牛乳样品、复原乳以及纯牛乳样品进行了检测和评价。试验结果表明：纯牛乳和掺入不同物质的掺假牛乳在主成分得分图上可以得到很好的区分;纯牛乳、复原乳及其混合乳也得到了有效的辨识;同时各种掺假牛乳样品随掺假物质的掺加比例在图中呈规律性分布。PCA法可用于快速分析处理低场核磁共振数据,低场核磁共振结合PCA法在乳制品的质量控制及评价中具有较大的应用潜力。 |
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| AbstractList | TS252.7; 以掺假牛乳样品为低场核磁共振检测对象,利用主成分分析法(PCA)分析处理Carr-Purcell-Meiboom-Gill(CPMG)序列的检测数据,旨在探求一种能有效分析处理样品弛豫数据的快速方法,并用于牛乳品质的监控.对几种常见掺假形式的(掺入水、食盐、尿素、豆浆等)牛乳样品、复原乳以及纯牛乳样品进行了检测和评价.试验结果表明:纯牛乳和掺入不同物质的掺假牛乳在主成分得分图上可以得到很好的区分;纯牛乳、复原乳及其混合乳也得到了有效的辨识;同时各种掺假牛乳样品随掺假物质的掺加比例在图中呈规律性分布.PCA法可用于快速分析处理低场核磁共振数据,低场核磁共振结合PCA法在乳制品的质量控制及评价中具有较大的应用潜力. 以掺假牛乳样品为低场核磁共振检测对象,利用主成分分析法（PCA）分析处理Carr-Purcell-Meiboom-Gill（CPMG）序列的检测数据,旨在探求一种能有效分析处理样品弛豫数据的快速方法,并用于牛乳品质的监控。对几种常见掺假形式的（掺入水、食盐、尿素、豆浆等）牛乳样品、复原乳以及纯牛乳样品进行了检测和评价。试验结果表明：纯牛乳和掺入不同物质的掺假牛乳在主成分得分图上可以得到很好的区分;纯牛乳、复原乳及其混合乳也得到了有效的辨识;同时各种掺假牛乳样品随掺假物质的掺加比例在图中呈规律性分布。PCA法可用于快速分析处理低场核磁共振数据,低场核磁共振结合PCA法在乳制品的质量控制及评价中具有较大的应用潜力。 |
| Author | 姜潮 韩剑众 范佳利 田师一 |
| AuthorAffiliation | 浙江工商大学食品质量与安全系,浙江省食品安全重点实验室,杭州310035 |
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| Author_FL | Tian Shiyi Jiang Chao Han Jianzhong Fan Jiali |
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| Author_xml | – sequence: 1 fullname: 姜潮 韩剑众 范佳利 田师一 |
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| Copyright | Copyright © Wanfang Data Co. Ltd. All Rights Reserved. |
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| DocumentTitleAlternate | Rapid detection of adulterated milk by low field-nuclear magnetic resonance coupled with PCA method |
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| Keywords | 低场核磁共振(LF-NMR) 品质控制 无损检测 主成分分析法(PCA) CPMG序列 掺假牛乳 |
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| PublicationYear | 2010 |
| Publisher | 浙江工商大学食品质量与安全系,浙江省食品安全重点实验室,杭州,310035 |
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| SubjectTerms | CPMG序列 主成分分析法（PCA） 低场核磁共振（LF-NMR） 品质控制 掺假牛乳 无损检测 |
| Title | 低场核磁共振结合主成分分析法快速检测掺假牛乳 |
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