河北省包装饮用天然泉水中三种无机物的检测
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(河北省卫生和计划生育委员会综合监督执法局,河北 石家庄 050071)

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刘静 女 主任医师 研究方向为食品安全标准E-mail:lj6221283@126.com通信作者:┣┣(中)通信作者┫┫张印法 男 主任医师 研究方向为食品安全标准E-mail:zyinfa2010@qq.com

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Detection of three kinds of inorganic compounds in packaged drinking natural spring water in Hebei Province
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(Hebei Provincial Health and Family Planning Commission Comprehensive Supervision and Law Enforcement Bureau,Hebei Shijiazhuang 050071,China)

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    摘要:

    抽样检测河北省包装饮用天然泉水中偏硅酸、锶和锂的含量,分析这三项指标是否适合作为其界限指标。方法 在河北省6个设区市的流通环节采样47份包装饮用天然泉水,采用国标方法进行检验。结果 抽检的47份样品中均检测到了锶,检出率为100.0%,其中31份样品锶含量≥0.2 mg/L,16份样品锶含量≥0.15 mg/L但<0.2 mg/L;有28份样品检测到偏硅酸,检出率为59.6%(28/47),其中2份样品含量≥25 mg/L、2份含量≥13 mg/L,其余样品均<13 mg/L;样品中均未检出锂。47份样品中,分别有27和33份样品的标签上标示了锶和偏硅酸的界限指标值,其中4份样品锶含量及29份样品偏硅酸含量的检测值与产品标签上标示值不符。结论 河北省包装饮用天然泉水中普遍含锶,其含量稳定,适合作为界限指标;抽检样品中偏硅酸检测值与标签标示值符合率较低,如果企业产品标准选择其作为界限指标,应根据终产品实际检测结果来确定,并在标签上按产品标准标示;抽检产品中均未检出锂,锂不适合作为界限指标。

    Abstract:

    To investigate the concentrations of lithium (Li), strontium (Sr) and metasilicic acid and analyze the suitability of the three components as boundary index of the packaged drinking spring water in Hebei Province.Methods Forty-seven samples of packaged drinking spring water were collected from supermarkets in six cities. The samples were detected for Li, Sr and metasilicic acid with national standard methods. Results All 47 samples had detectable strontium, the concentration of 31 samples were above 0.2 mg/L and 16 samples were in the range of 0.15-0.2 mg/L. Twenty-eight samples had detectable metasilicic acid, the concentration of 2 samples were above 25 mg/L, 2 samples were above 13 mg/L, and the other samples were below 13 mg/L. None samples had detectable lithium. Strontium and metasilicic acid were labeled in 27 and 33 samples as boundary index respectively. The detected concentrations of Sr in 4 samples and metasilicic acid in 29 samples were not accordance with the label.Conclusion Strontium was universal contained in the natural spring water with a relatively stable concentration and suitable as a boundary index. The levels of metasilicic acid in spring water varied greatly with the sources of the water. Therefore, manufacturers should carefully label metasilicic acid based on the actual detection results.

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刘静,张印法,张俊琴,杨立伟,孟卫东,陈桂茹.河北省包装饮用天然泉水中三种无机物的检测[J].中国食品卫生杂志,2016,28(6):779-781.

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  • 收稿日期:2016-11-07
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  • 在线发布日期: 2017-01-06
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