摘要
本文使用《食品安全国家标准 食品中总汞及有机汞的测定》(GB 5009.17-2021)第四法"冷原子光谱法"对胡萝卜、豆角、大米、芹菜等 8 种标准物质中的总汞进行测定.采用直接进样法、快速消解法与微波消解法 3 种不同方式对样品进行处理,使用DMA-80 型测汞仪进行测定.结果表明,快速消解法测定结果最为准确,8种标准物质检测结果均在标示值范围内.
Abstract
This article uses the fourth method"Cold Atomic Spectroscopy"in the GB 5009.17-2021 to determine the total mercury in eight standard substances,including carrots,beans,rice,celery,etc.The samples were processed using three different methods:direct injection method,rapid digestion method,and microwave digestion method.The DMA-80 mercury meter was used for measurement.The results showed that the rapid digestion method was the most accurate,and the detection results of the 8 standard substances were all within the indicated value range.
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