烟草及烟草制品中硝酸盐/亚硝酸盐流动分析模块的建立

[目的]组建流动分析模块,并用于检测烟草中硝酸盐/亚硝酸盐的含量。[方法]收集可用材料、配件组装模块,然后对样品以及标准物质进行检测,确定其重复性、回收率、检测限,以验证模块可用性。[结果]通过反复改进组装模块,对多个烟草样品硝酸盐/亚硝酸盐含量分别测定多次,测定模块重复性,结果RSD〈2.92%;向样品中加入标准溶液测定回收率,回收率为97.2%～104.9%。[结论]组装模块能够满足烟草及烟草制品中硝酸盐/亚硝酸盐含量检测需要,节省了新购仪器的费用,同时提高了现有仪器的使用率。

Establishment of the Flowing Analysis Module for the Determination of Nitrate/Nitrite in Tobacco and its Products

[Objective]The flowing analysis module was established for the measurement of the nitrate/nitrite in tobacco and its products.[Method]After the assembly of module,the repeatability of RSD,recovery,detection limit of the module to sample and standard were determined for its operation after experiment.[Result]The experimental result based on the multi-testing indicated the RSD was<2.92%,the recovery was in the range of 97.2%~104.9%.[Conclusion]The module could be used for the determination of the nitrate/nitr...