PL
Określono zależności między okresem przechowywania i rodzajem opakowania a zmianami zawartości jonów Li+, Na+, K+, Mg2+ i Ca2+ w wodzie ze źródła „Wiesława” z Buska Zdroju. Badana woda zawiera stosunkowo duże ilości sodu i potasu oraz magnezu i wapnia, które w pewnym stopniu wzrastały (głównie sodu i wapnia) w czasie przechowywania wody w szklanych butelkach, a nie zmieniały się w butelkach plastikowych.
EN
Sulfide/hydrogen sulfide (SHS) waters containing at least l g of total sulfur per kilogram of mineral water are used in the drinking cure (crenotherapy) and in bathing therapy. In Poland, such water occurs, among others, in the “Wiesława” spring in Busko Zdrój. The objective of the study was to determine the relationship between the period of storage as well as the type of container and variations of content of Li+, Na+, K+, Mg2+ and Ca2+ cations in the water from the “Wiesława” spring in Busko Zdrój. The concentrations of the cations were determined by ion chromatography (IC) and atomic absorption spectrometry (AAS). The mineral water contains relatively large amounts of sodium and potassium as well as magnesium and calcium which tend to increase (mainly sodium and calcium) during storage of the water in glass bottles, while the concentrations were constant during storage in plastic bottles. Since washing-out of the elements from the glass is accelerated by light and elevated temperatures, glass bottles with the mineral water should be kept in cool and dark places.