Determination of trace elements in commonly consumed medicinal herbs by ICP-MS and multivariate analysis

TOKALIOĞLU Ş.

FOOD CHEMISTRY, cilt.134, sa.4, ss.2504-2508, 2012 (SCI-Expanded) identifier identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 134 Sayı: 4
  • Basım Tarihi: 2012
  • Doi Numarası: 10.1016/j.foodchem.2012.04.093
  • Dergi Adı: FOOD CHEMISTRY
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Sayfa Sayıları: ss.2504-2508
  • Anahtar Kelimeler: Medicinal herb, Trace metal, Microwave digestion, ICP-MS, Multivariate analysis, HEAVY-METALS, MINERAL-CONTENT, PLANTS, INFUSIONS, CADMIUM, LEAD, SAMPLES, WATERS, SPICES, TEAS
  • Erciyes Üniversitesi Adresli: Evet

Özet

The concentrations of Cr, Mn, Fe, Co, Ni, Cu, Zn, Rb, Sr and Pb elements in thirty medicinal herb samples widely consumed in Kayseri. Turkey were determined by using inductively coupled plasma mass spectrometry (ICP-MS). The samples were digested with concentrated nitric acid and hydrogen peroxide in a microwave system. The decreasing sequence of the mean metal levels in medicinal herbs is as follows: Fe > Sr > Mn > Zn > Rb > Cu > Ni > Cr > Co > Pb. Correlation analysis, principal component analysis and cluster analysis were applied to the data matrix to evaluate analytical results. It was found that four principal components account for 80.6% of the total variance in the data. In order to verify the accuracy of the method, GBW07605 Tea Certified Reference Material was analysed. Crown Copyright (C) 2012 Published by Elsevier Ltd. All rights reserved.