建立了一种固、液体食品中总汞含量快速检测方法。通过测汞仪内置的模块化干燥、热分解、催化还原、金汞齐化、冷原子吸收等组件对样品中汞进行一站式的检测，无需对样品进行传统的前处理，避免了样品中汞的污染与损失。该法根据汞浓度建立了高、低两条浓度范围（0~20 ng和20~800 ng）的标准曲线，具有检出范围宽（0~800 ng）、检出限低（LOD=0.06 μg/kg）等特点。采用该法测定了固、液态等6种保健食品中总汞的含量，并与现行的食品中总汞的测定国家标准方法进行了比较，两种方法的检测结果无显著性差异，通过对标准物质的测定验证表明该法测定结果准确可靠。高、中、低三个浓度水平回收实验测得回收率为93.20~106.00%，回收结果令人满意。该方法可推荐作为食品、农产品等国家食品安全抽检工作的快速检测方法。

An analytical method for rapid determination of total mercury in different forms of functional food is described. The proposed method employed the inner drying, thermal decomposition, catalytic reduction, gold amalgamation and atomic absorption modules of direct mercury analyzer to determine the total mercury of samples. Moreover, the pretreatment of the samples were unneeded during the analytical procedure, which avoided the exogenous pollution and loss of mercury in samples. Two standard curves with different concentration ranges (0~20 ng and 20~800 ng) were established in the method, which exhibited the characteristics of broad detectable concentration range (0~800 ng) and low detection limit (0.06 μg/kg). The developed method was applied in the analysis of total mercury content in six solid and liquid forms of functional food and the analytical results were compared to the commonly used national standard method-atomic fluorescence spectroscopy, which showed that the two methods had no significant difference. Verification on the recommended value of standard reference material showed that this method was accurate and reliable. Recoveries of the samples at three spiked levels (high, medium and low) were in the range of 93.20% to 106.00%. The method was suggested as a ready-to-use analytical method in safety inspection of food and agricultural products.

广东省科技计划项目（2012A020100002）；广东省促进科技服务业发展计划项目（2012B040302012）；广东省教育部产学研结合项目（2010A090200084）