Atomic-absorption and atomic-emission methods application in the analysis of the main mineral composition elements in wine products
He paper provides an overview of the atomic-absorption and atomic-emission methods used to analyze mineral composition of wine products. The metrological characteristics of standardized domestic and foreign techniques for measuring macroelements in wine and juice products using flame and inductively coupled plasma atomic absorption have been systematized. The results of basic inorganic cation determination in the Crimean cognacs done using the developed method based on flame atomic absorption (magnesium, calcium) and emission (sodium, potassium) spectrometry are given below. On average, potassium mass concentration in the five examined samples of Crimean cognacs made 12.2 mg/l, sodium - 35.2 mg/l, calcium - 1.3 mg/l, magnesium - 1.7 mg/l. Compared to other southern regions of Russia, the cognacs produced in Crimea showed elevated potassium content. Systematized metrological characteristics of the techniques can be useful in planning experimental studies of wine products to ensure the required measurement accuracy and assess the reliability of the experimental data obtained.