Determination of common inorganic anions in tea samples by ion chromatography

Maria Balcerzak , Jolanta Janiszewska


Plants exposure to environmental sources of common inorganic anions (chloride, nitrate, phosphate, and sulphate) is discussed. Various commercial tea products were examined for the content of water soluble anions by the use of sample preparation procedure corresponding to the conditions generally applied for the preparation of tea infusions (2 g of tea, 5 min brewing time, 250 ml final volume) widely consumed by humans. Suppressed ion chromatography (IC) (Metrohm Metrosep A Supp 5 (150 mm × 4 mm) column) with conductometric detection was used for the determination. The IC technique allows isolation of the signals of particular anions and their detection (DLs of 0.012 (Cl−), 0.019 (NO3 −), 0.047 (PO 43–), and 0.011 (SO 42–) mg l−1) within 15 min.
Author Maria Balcerzak (FC / CAC)
Maria Balcerzak,,
- Chair Of Analytical Chemistry
, Jolanta Janiszewska (FC / CAC)
Jolanta Janiszewska,,
- Chair Of Analytical Chemistry
Journal seriesActa Alimentaria : an international journal of food science, ISSN 0139-3006 [1588-2535], (A 15 pkt)
Issue year2015
Publication size in sheets0.5
Keywords in Englishplants; tea; inorganic anions; ion chromatography
Languageen angielski
wdpb_publikacje_pliki_plik_publikacja_2073_org.pdf 410.32 KB
Score (nominal)15
ScoreMinisterial score = 15.0, 28-11-2017, ArticleFromJournal
Ministerial score (2013-2016) = 15.0, 28-11-2017, ArticleFromJournal
Publication indicators WoS Impact Factor: 2015 = 0.333 (2) - 2015=0.38 (5)
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