| 核磁共振磷谱定量测定肉制品中磷酸盐的含量 |
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| 引用本文： | 韩智,江丰,周密,张亚珍,龚蕾,王会霞. 核磁共振磷谱定量测定肉制品中磷酸盐的含量[J]. 食品工业科技, 2021, 42(9): 275-280. DOI: 10.13386/j.issn1002-0306.2020060360 |
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| 作者姓名： | 韩智 江丰 周密 张亚珍 龚蕾 王会霞 |
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| 作者单位： | 湖北省食品质量安全监督检验研究院,湖北省食品质量安全检测工程技术研究中心,湖北武汉 430075 |
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| 基金项目： | 国家重点研发计划项目(2018YFC1602300)。 |
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| 摘 要： | 建立了核磁共振磷谱(31P-qNMR)技术快速定量测定肉制品中磷酸盐含量的方法.样品采用碱性缓冲盐振荡提取2次,离心过膜后,以六甲基磷酰三胺为内标进行定量分析.结果表明:该方法加标回收率为97.0％～112.0％,相对标准偏差0.87％～3.15％.日内精密度为0.68％～3.55％,日间精密度为1.12％～4.51％...
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| 关 键 词： | 核磁共振波谱法 核磁共振磷谱 肉制品 磷酸盐 |
| 收稿时间： | 2020-07-02 |
Quantitative Determination of Phosphate in Meat Products by 31P-Nuclear Magnetic Resonance |
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| HAN Zhi,JIANG Feng,ZHOU Mi,ZHANG Yazhen,GONG Lei,WANG Huixia. Quantitative Determination of Phosphate in Meat Products by 31P-Nuclear Magnetic Resonance[J]. Science and Technology of Food Industry, 2021, 42(9): 275-280. DOI: 10.13386/j.issn1002-0306.2020060360 |
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| Authors: | HAN Zhi JIANG Feng ZHOU Mi ZHANG Yazhen GONG Lei WANG Huixia |
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| Affiliation: | Hubei Provincial Institute for Food Supervision and Test, Hubei Provincial Engineering and Technology Research Center for Food Quality and Safety Test, Wuhan 430075, China |
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| Abstract: | A 31P-quantitative nuclear magnetic resonance(31P-qNMR)technique was established for determination of content of various phosphates in meat products.The samples were extracted twice with alkaline buffer salts,after shaking and centrifugation through the membrane,the target compounds quantified analysis by NMR using hexamethyl phosphoramide as internal standard.The results showed that:The recovery rates of phosphates were 97.0%~112.0%,and the RSDs were 0.87%~3.15%,the intra-day and inter-day precisions were 0.68%~3.55%,1.12%~4.51%,respectively.The phosphates in commercial meat products were detected,and the qNMR measurement results were accurate.This method simplified sample pretreatment,saved time,quantified accurately,and had wider applicability for quantitative detection of phosphates in foods.It provides a new method for the quantitative determination of phosphates in meat products. |
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| Keywords: | quantitative nuclear magnetic resonance(qNMR) 31P-nuclear magnetic resonance(31P-NMR) meat products phosphates |
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