Analysis of Tea for Metals by Flame and Graphite Furnace Atomic Absorption Spectrometry with Multivariate Analysis
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2017
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Prikaz svih podataka o dokumentuApstrakt
The concentrations of iron, zinc, manganese, copper, chromium, nickel, lead, arsenic, and cadmium were determined using flame and graphite furnace atomic absorption spectrometry in nine herbal tea samples. Hawthorn, yarrow, elderflower, and bearberry are herbal teas for which the metal content has been rarely determined. The concentration of cadmium in St John’s wort exceeded the maximum permissible limit of 0.3 mg/kg. The metals were also determined in aqueous extracts following 5, 10, and 20 min of boiling and using different preparations, including acidification with lemon juice. The influence of these factors on metal release was demonstrated using multivariate analyses by redundancy analysis and principal component analysis. The metal release was not considerably affected by the boiling time, while the acidity of the medium was generally positively correlated. For the infusions, arsenic was detected only in acidified mint tea. The extraction efficiencies of metals were determined ...and classified as highly, moderately, and poorly extractable, with chromium showing largest variations.
Ključne reči:
Flame atomic absorption spectrometry / graphite furnace atomic absorption spectrometry / herbal tea / principal component analysis / redundancy analysisIzvor:
Analytical Letters, 2017, 50, 16, 2619-2633Izdavač:
- Taylor and Francis Inc.
Finansiranje / projekti:
Napomena:
- The peer-reviewed version: http://cer.ihtm.bg.ac.rs/handle/123456789/3065
DOI: 10.1080/00032719.2017.1307849
ISSN: 0003-2719
WoS: 000413898200009
Scopus: 2-s2.0-85029702835
Institucija/grupa
IHTMTY - JOUR AU - Popović, Slađana AU - Pantelić, Ana AU - Milovanović, Željka AU - Milinkov, J. AU - Vidović, Milka PY - 2017 UR - https://cer.ihtm.bg.ac.rs/handle/123456789/2211 AB - The concentrations of iron, zinc, manganese, copper, chromium, nickel, lead, arsenic, and cadmium were determined using flame and graphite furnace atomic absorption spectrometry in nine herbal tea samples. Hawthorn, yarrow, elderflower, and bearberry are herbal teas for which the metal content has been rarely determined. The concentration of cadmium in St John’s wort exceeded the maximum permissible limit of 0.3 mg/kg. The metals were also determined in aqueous extracts following 5, 10, and 20 min of boiling and using different preparations, including acidification with lemon juice. The influence of these factors on metal release was demonstrated using multivariate analyses by redundancy analysis and principal component analysis. The metal release was not considerably affected by the boiling time, while the acidity of the medium was generally positively correlated. For the infusions, arsenic was detected only in acidified mint tea. The extraction efficiencies of metals were determined and classified as highly, moderately, and poorly extractable, with chromium showing largest variations. PB - Taylor and Francis Inc. T2 - Analytical Letters T1 - Analysis of Tea for Metals by Flame and Graphite Furnace Atomic Absorption Spectrometry with Multivariate Analysis VL - 50 IS - 16 SP - 2619 EP - 2633 DO - 10.1080/00032719.2017.1307849 ER -
@article{ author = "Popović, Slađana and Pantelić, Ana and Milovanović, Željka and Milinkov, J. and Vidović, Milka", year = "2017", abstract = "The concentrations of iron, zinc, manganese, copper, chromium, nickel, lead, arsenic, and cadmium were determined using flame and graphite furnace atomic absorption spectrometry in nine herbal tea samples. Hawthorn, yarrow, elderflower, and bearberry are herbal teas for which the metal content has been rarely determined. The concentration of cadmium in St John’s wort exceeded the maximum permissible limit of 0.3 mg/kg. The metals were also determined in aqueous extracts following 5, 10, and 20 min of boiling and using different preparations, including acidification with lemon juice. The influence of these factors on metal release was demonstrated using multivariate analyses by redundancy analysis and principal component analysis. The metal release was not considerably affected by the boiling time, while the acidity of the medium was generally positively correlated. For the infusions, arsenic was detected only in acidified mint tea. The extraction efficiencies of metals were determined and classified as highly, moderately, and poorly extractable, with chromium showing largest variations.", publisher = "Taylor and Francis Inc.", journal = "Analytical Letters", title = "Analysis of Tea for Metals by Flame and Graphite Furnace Atomic Absorption Spectrometry with Multivariate Analysis", volume = "50", number = "16", pages = "2619-2633", doi = "10.1080/00032719.2017.1307849" }
Popović, S., Pantelić, A., Milovanović, Ž., Milinkov, J.,& Vidović, M.. (2017). Analysis of Tea for Metals by Flame and Graphite Furnace Atomic Absorption Spectrometry with Multivariate Analysis. in Analytical Letters Taylor and Francis Inc.., 50(16), 2619-2633. https://doi.org/10.1080/00032719.2017.1307849
Popović S, Pantelić A, Milovanović Ž, Milinkov J, Vidović M. Analysis of Tea for Metals by Flame and Graphite Furnace Atomic Absorption Spectrometry with Multivariate Analysis. in Analytical Letters. 2017;50(16):2619-2633. doi:10.1080/00032719.2017.1307849 .
Popović, Slađana, Pantelić, Ana, Milovanović, Željka, Milinkov, J., Vidović, Milka, "Analysis of Tea for Metals by Flame and Graphite Furnace Atomic Absorption Spectrometry with Multivariate Analysis" in Analytical Letters, 50, no. 16 (2017):2619-2633, https://doi.org/10.1080/00032719.2017.1307849 . .