| 基于溶解无机碳中碳氧同位素及化学组分的瓶装饮用水产地真实性鉴别 |
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| 引用本文： | 陈海泉,靳保辉,周秀雯,林妮,林起辉,吕润平,颜治,吴浩.基于溶解无机碳中碳氧同位素及化学组分的瓶装饮用水产地真实性鉴别[J].核农学报,2020,34(Z1):50-60. |
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| 作者姓名： | 陈海泉 靳保辉 周秀雯 林妮 林起辉 吕润平 颜治 吴浩 |
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| 作者单位： | 1深圳海关食品检验检疫技术中心, 广东 深圳 518033;2中国计量大学, 浙江 杭州 310018 |
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| 基金项目： | 基于氢氧同位素分馏与元素迁移的葡萄酒产地溯源机制研究(31701699),特色高值农产品地判别技术研究(2017YFF0211302) |
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| 摘 要： | 为了鉴别我国市场上销售的瓶装饮用水的产地和产品类型,本试验分析了瓶装饮用水溶解无机碳(DIC)中的δ18ODIC和δ13CDIC、水中的δ18O和δ2H值、矿物元素(K、Ca、Na、Mg、Sr)含量、阴离子(Cl-、SO42-、HCO3-)含量、pH值与电导率等水化学指标,结合费希尔判别分析(Fisher-DA)建立模型,对瓶装饮用水的类别和产地进行鉴别。结果表明,不同产地瓶装饮用水的δ18ODIC、δ13CDIC、δ18O、δ2H值均具有显著差异,而且矿物元素与阴离子的含量变化范围广,具有不同的地域性特征。产地溯源判别模型对不同产地瓶装饮用水的判别准确率高达100%,且采用水化学指标还能区分瓶装饮用水的类型。正态化重要性分析显示,对产地具有指示效应的前五项重要指标分别为K、Cl-和δ13CDIC、δ2H和pH值。综上所述,通过稳定同位素指纹信息和水化学指标的差异进行融合分析,结合多元统计模型可有效鉴别市场上瓶装饮用水的真实性,保护消费者的合法权益,维护市场公平。
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| 关 键 词： | 瓶装饮用水 溶解无机碳 稳定同位素 水化学 产地溯源 |
| 收稿时间： | 2020-11-30 |
Authentic Identification of Bottled Drinking Water Origin Based on Carbon and Oxygen Isotopes of Dissolved Inorganic Carbon and Chemical Composition |
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| CHEN Haiquan,JIN Baohui,ZHOU Xiuwen,LIN Ni,LIN Qihui,LYU Runping,YAN Zhi,WU Hao.Authentic Identification of Bottled Drinking Water Origin Based on Carbon and Oxygen Isotopes of Dissolved Inorganic Carbon and Chemical Composition[J].Acta Agriculturae Nucleatae Sinica,2020,34(Z1):50-60. |
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| Authors: | CHEN Haiquan JIN Baohui ZHOU Xiuwen LIN Ni LIN Qihui LYU Runping YAN Zhi WU Hao |
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| Institution: | 1Food Inspection and Quarantine Center, Shenzhen Customs, Shenzhen, Guangdong 518033;2China Jiliang University, Hangzhou, Zhejiang 310018 |
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| Abstract: | To identify the origin and product type of bottled drinking water sold in the market δ18ODIC and δ13 and CDIC of dissolved inorganic carbon (DIC), δ18O and δ2H valueand chemical indexes such as mineral elements (K, Ca, Na, Mg, Sr) and ion (Cl-, SO42-、HCO3-) in the bottled drinking water were analyzed in this paper. The origin of bottled drinking water in China were verified by using Fisher discriminant analysis (Fisher - DA). The results showed that δ18ODIC and δ13CDIC, δ18O and δ2H value of bottled drinking water from different origins were significantly different, and the content of mineral elements and anions varied widely which could be used for origin traceability. The discriminant accuracy of the DA model for origin verification of the bottled drinking water was up to 100%, and hydrochemical analysis could distinguish the type of the bottled drinking water. The first five of importance for origin traceability were K, Cl-, δ13CDIC ,δ2H and pH value according to the Normalizing importance analysis. Combining with stable isotope fingerprint, hydrochemical analysis and multivariate statistical model, the authenticity of bottled drinking water can be accurately distinguished, and therefore protect the legitimate rights and interests of consumers and maintain market fairness. |
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| Keywords: | bottled drinking water dissolved inorganic carbon stable isotopic hydrochemical origin traceability |
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