Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
8
pubmed:dateCreated
2008-7-21
pubmed:abstractText
Arsenic, cadmium and lead were determined for quality control monitoring purposes of Bulgarian herbs and their infusions by inductively coupled plasma mass spectrometry and electrothermal atomic absorption spectrometry. Twelve samples of yarrow (Achillea millefolium), 18 of chamomile (Flores Chamomillae), 8 of bearberry leaves (Folia uvae ursi), 24 of peppermint (Mentha piperitae folium), 10 of hibiscus (Hibiscus sabdariffa), 14 of oregano (Origanum vulgare) and 12 of thyme (Thymus serpyllum) were analyzed. The studied toxic elements were present in the medicinal plants (12-225 microg/kg As, 15-268 microg/kg Cd, 0.2-8.6 mg/kg Pb). Arsenic was found in all herbal infusions at levels up to 0.4 microg/l. Cadmium was present in infusions of chamomile, hibiscus, peppermint and thyme at levels up to 0.7 microg/l. Lead was detected only in hibiscus infusions (2-3 microg/l). It was established that the major part of arsenic and lead in herbal infusions existed in biomacromolecular fraction. Cadmium appears to be present mainly in cationic form at pH 1 (stomach acidity), but at pH 7.6 (intestine acidity) there is a non-cationic fraction as well.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Aug
pubmed:issn
0278-6915
pubmed:author
pubmed:issnType
Print
pubmed:volume
46
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
2871-5
pubmed:meshHeading
pubmed:year
2008
pubmed:articleTitle
Arsenic, cadmium and lead in medicinal herbs and their fractionation.
pubmed:affiliation
University of Sofia, Faculty of Chemistry, 1164 Sofia, bld. J. Bourchier 1, Bulgaria. sganeva@chem.uni-sofia.bg
pubmed:publicationType
Journal Article, Research Support, Non-U.S. Gov't