镁同位素分析技术应用于葡萄酒辨别的探索研究

引用本文: 逯海, 刘懿璨, 王军, 周原晶, 任同祥, 周涛. 镁同位素分析技术应用于葡萄酒辨别的探索研究[J]. 分析化学, 2012, 40(10): 1598-1601. doi: 10.3724/SP.J.1096.2012.20143 shu

Citation: LU Hai, LIU Yi-Can, WANG Jun, ZHOU Yuan-Jing, REN Tong-Xiang, ZHOU Tao. Exploration of Mg Isotope Analysis for Identification of Different Original Wine[J]. Chinese Journal of Analytical Chemistry, 2012, 40(10): 1598-1601. doi: 10.3724/SP.J.1096.2012.20143 shu

镁同位素分析技术应用于葡萄酒辨别的探索研究

逯海 ^{1,
,} ,
刘懿璨 ^2, ,
王军 ^1, ,
周原晶 ^1, ,
任同祥 ^1, ,
周涛 ^1,

通讯作者: 逯海

基金项目:
本文系中国计量科学研究院基本业务费基金(No.21-JB1250)资助项目 (No.21-JB1250)

摘要: 建立了阳离子树脂富集镁的方法。以1 mol/L HNO₃为淋洗液、AG W50-X8阳离子树脂富集镁。方法回收率为(101.6±1.2)%。以H₂(2.1 mL/min)、He(7.0 mL/min)混合碰撞气消除¹²C¹²C⁺,¹²C₂¹H⁺等干扰的MC-ICP-MS分析方法。分析了40种葡萄酒中镁同位素组成,结果表明:不同产地葡萄酒中镁同位素组成差异明显;而且,来自同一产区不同葡萄园的葡萄酒中镁同位素组成也有显著差异。这表明镁同位素具有区分不同产地葡萄酒的能力,而且地理分辨率较高。对于部分镁同位素组成差异不明显的样品,结合元素分析手段,可以准确区分。

关键词:

镁
/ 同位素
/ 葡萄酒
/ 原产地追溯

English

Exploration of Mg Isotope Analysis for Identification of Different Original Wine

1.
¹ Division of Metrotogy in Chemistry, National Institute of Metrology, Beijing 100013, China;

Corresponding author: 逯海

Received Date: 19 February 2012
Fund Project:
本文系中国计量科学研究院基本业务费基金(No.21-JB1250)资助项目

Abstract: A technique for separation of Mg, with 101.6%±1.2% yield from wine has been developed for high precision analysis of Mg isotopes by multiple-collector inductively coupled plasma mass spectrometry. One separate stage of ion-exchange chromatography was carried out using cation exchange resin, AG50W-X8 and elution with 1 mol/L HNO₃. A mixture of H₂ (2.1 mL/min) and He (7.0 mL/min) was performed to decrease isobars of ¹²C¹²C⁺, ¹²C₂¹H⁺ during Mg isotope analysis by MC-ICP-MS technique along with SSB method. 40 wines were analyzed then. ²⁶Mg/²⁴Mg and ²⁵Mg/²⁴Mg show significant variation, this implies that Mg can be a good tracer to tracing geographical origin of wine with good geographical resolution. The samples with similar Mg isotopic compositions can be distinguished by the combined technique of Mg isotope analysis with inorganic elements analysis.

Key words:

Magnesium
/ Isotope
/ Wine
/ Original tracing

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1.
沈阳化工大学材料科学与工程学院沈阳 110142

镁同位素分析技术应用于葡萄酒辨别的探索研究

通讯作者: 逯海

English

Exploration of Mg Isotope Analysis for Identification of Different Original Wine

Corresponding author: 逯海

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通讯作者: 陈斌, bchen63@163.com

中国化学会秘书处

镁同位素分析技术应用于葡萄酒辨别的探索研究

通讯作者: 逯海

English

Exploration of Mg Isotope Analysis for Identification of Different Original Wine

Corresponding author: 逯海

CCS Chemistry：嵌段共聚物自组装成 “三明治”二维有机材料，实现纳米级压力传感功能

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CCS Chemistry：工作高效不疲劳，只须让催化剂动起来

CCS Chemistry：静电组装导向聚合- 聚电解质纳米凝胶量化制备新策略

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