Microsoft Word 叶青-二校 出

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1 7 11 Vol. 7 No Journal of Food Safety and Quality Nov., 2016 叶 青 1, 李勤 1*, 吕庆 1, 李柚 2, 龚雁 2 (1., ; 2., ) 摘 要 :,,,, 2011 GB ,,,,, 关键词 : ; ; ; ; Determination methods of sodium ion in food YE Qing 1, LI Qin 1*, LV Qing 1, LI You 2, GONG Yan 2 (1.Shanghai Institute of Quality Inspection and Technical Research, Shanghai , China; 2. Metrohm China Co., Ltd., Beijing100101, China) ABSTRACT: Sodium is an important mineral in food, which can maintain the body's normal osmotic pressure and metabolism as well as can maintain acid-base balance in the body, so it is very important for human health. If the intake of sodium is excessive, it will cause hypertension and other chronic diseases. Sodium is one of the 4 kinds of core nutrients in GB National food safety standard-general nutrition labels standard for pre-packaged food published by the Ministry of Health of the PRC. Therefore, the content of sodium in foods gains widespread concerns. Determination of sodium ion is important for human health, also becomes the research focus. There are lots of methods for detection of sodium ion, and each method has advantages and disadvantages. This paper compared the different analytical methods and reviewed the recent researches of analytical methods of sodium ion in food. KEY WORDS: sodium ion; thermometric titration; atomic absorption spectroscopy; chromatography; inductively coupled plasma mass spectrometry 1 引言,,, [1-3], [4,5] 基金项目 : 上海市科委研发平台专项 ( (15DZ ) Fund:Supported by Shanghai Science and Technology Exchange Center Foundation (Shanghai Professional and Technical Services Platform for Food Quality and Safety Testing and Evaluation )(15DZ ) * 通讯作者 :,, liqin@sqi.org.cn *Corresponding author: LI Qin, Senior Engineer, Shanghai Institute of Quality Inspection and Technical Research, Shanghai , China. liqin@sqi.org.cn

2 11, : 4577, Na + Cl -, Na + K + [6,7],,, [8] 2011 GB [9], 4 ( ) [10,11],,,, 2 食品中钠离子含量的检测方法 2.1 原子吸收光谱法 (atomic absorption spectrometry, AAS), [11], [12-15], GB [16] GB [17] GB [18], [19,20] [21-23] [24] ; [25] [26] ; Alexandre de Jesus [27] ; [28],,,,,, [23],,,, [29] ; [30] ; [31], ( 1%),, 2.2 容量滴定法 [32],,,, [33-35],, Na +, Cl - Na +,,,, 2.3 温度滴定法,,, [36],, ( ), ( ), ( ) [37,38],,,,,,,,,,, ( ), ( ), Y Smith [37],

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