Concentration of selected heavy metals in spices, dry fruits and plant nuts
Different spices, dry fruits and plant nuts commonly consumed in Pakistan were assayed for the heavy metals cadmium, lead, copper, zinc, iron and manganese by the potentiometric stripping analysis and AA spectrophotometry. The results revealed wide variation in heavy metal content among different bi...
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Published in | Plant foods for human nutrition (Dordrecht) Vol. 39; no. 3; p. 279 |
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Main Authors | , , |
Format | Journal Article |
Language | English |
Published |
Netherlands
01.09.1989
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Subjects | |
Online Access | Get more information |
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Summary: | Different spices, dry fruits and plant nuts commonly consumed in Pakistan were assayed for the heavy metals cadmium, lead, copper, zinc, iron and manganese by the potentiometric stripping analysis and AA spectrophotometry. The results revealed wide variation in heavy metal content among different biological materials. Mixed spices generally exhibited higher value for trace metals specially lead (6.6-9.2 micrograms/g), cadmium (0.65-1.34 micrograms/g), iron (142.3-285.0 micrograms/g) and zinc (64.2-65.8 micrograms/g). Dry fruits contained relatively lesser amounts of heavy metals than plant nuts. Almonds contained higher levels of lead (1.02 micrograms/g) and cadmium (0.24 micrograms/g) than other nuts and dry fruits. |
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Bibliography: | T01 Q03 9000158 |
ISSN: | 0921-9668 1573-9104 |
DOI: | 10.1007/BF01091938 |