Metrological support for accurate measurements of the concentration of nitrosamines in food products: reference materials of the composition of nitrosamines and measurement procedures

Accurate measurements of the content of nitrosamines in food products, pharmaceuticals, and water can guarantee the quality of these products and drinking water. In order to provide accurate measurement results to the population, it is necessary to have, and in the absence of, the creation of metrological support tools and methods that guarantee accurate measurement results. By the time work began on the creation of standard samples of nitrosamines in the field of food quality assurance, the validity period of previously created ones had expired many years ago, i.e. There were no metrological support facilities. This article is devoted to the topic of determining the content of nitrosamines in food products using measurement methods and reference samples and presents the issues of ensuring metrological traceability of nitrosamine measurement results. As a result of the work done, the content of nitrosamines in standard samples was determined, which will allow accurate measurement of the content of nitrosamines in food. The article consists of four interrelated parts and its purpose is to find answers to the tasks outlined above. The characteristics of the developed standard samples of the composition of N-nitrosodimethylamine (NDMA), the composition of N-dipropylnitrosamine (DPNA), the composition of N-nitrosodiethylamine (NDEA) and the certified measurement method are given. The results are relevant for the development and application of standard samples of the composition of nitrosamines, certification of measurement methods to meet the needs of the national economy. Methods and means of metrological support of measurements of nitrosamines in food products have been created.