| 石墨消解-电感耦合等离子体质谱法测定烟用香精中的重金属 |
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| 引用本文： | 杨振东,严莉红,白若石,马雁军,周骏.石墨消解-电感耦合等离子体质谱法测定烟用香精中的重金属[J].中国烟草学报,2022,28(1):1-7. |
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| 作者姓名： | 杨振东 严莉红 白若石 马雁军 周骏 |
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| 作者单位： | 上海烟草集团有限责任公司技术中心北京工作站，北京 101121 |
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| 基金项目： | 上海烟草集团北京卷烟厂有限公司项目TP2018-C5 |
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| 摘 要： | 目的]优化和建立石墨消解-电感耦合等离子体质谱联用的方法测定烟用香精中的重金属.方法]选择自主设计的新型消解罐,研究不同消化温度、不同消解液用量对样品消化的影响,将优化结果与微波消解-电感耦合等离子体质谱联用法对比检出限、定量限、加标回收率、RSD.并依据GB/T 27417—2017《合格评定化学分析方法确认和验...
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| 关 键 词： | 石墨消解 电感耦合等离子体质谱 烟用香精 重金属 |
| 收稿时间： | 2021-02-23 |
Determination of heavy metals in tobacco flavors by graphite digestion-ICP-MS |
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| Affiliation: | Beijing Branch, Technology Center, Shanghai Tobacco Group Co., Ltd., Beijing 101121, China |
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| Abstract: | Background The graphite digestion-ICP-MS method for the determination of heavy metals in tobacco flavor was optimized and established. Methods The influence of digestion temperature and digestion solution dosage on sample digestion was studied by using a new self-designed digestion tank. The established method was compared with microwave digestion-ICP-MS method in terms of LOD, LOQ, standard recovery rate, RSD. Moreover, the established method was validated according to national standard GB/T 27417 ― 2017 for conformity assessment. Results The results showed that under the maximum digestion temperature of 170 ℃ and by using 10 mL HNO3/2 mL H2O2 as the digestion solution, the digestion was completed within 4.0 h. For the determination of different heavy metal elements Cr, Cd, Ni, Pb and As in tobacco flavor, the proposed method had no obvious difference in the LOD and LOQ compared with the microwave digestion-ICP-MS method and the RSD value was lower. The six parameters of the method, including measurement range, linear range, LOD, LOQ, precision and accuracy, were in accordance with the requirements of national standard GB/T 27417-2017. Conclusion The proposed method has the advantages of simple operation, low LOD, high recovery rate and good repeatability, which meets the requirement of tobacco flavor testing and is suitable for the rapid detection of large quantities of tobacco flavor samples. |
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