References
- Al-oud , S . 2003 . Heavy metal contents in tea and herb leaves . Pakistan J Biol Sci , 6 : 208 – 212 .
- Ansari , F , Norbaksh , R and Daneshmandiran , K . 2007 . Determination of heavy metals in Iranian and imported black tea . Iranian J Environ Health Sci Eng , 4 : 243 – 248 .
- Ashraf , W and Atiq , AM . 2008 . Levels of selected heavy metals in black tea varieties consumed in Saudi Arabia . B Environ Contam Toxicol , 81 : 101 – 104 .
- Association of Official Agriculture Chemists. 2000. Methods of Analysis, A.O.A.C., Volume 11. California: AOAC. Official methods 999.11, Determination of Lead, Cadmium, Copper, Iron and Zinc in foods.
- Ebadi , AG , Mahdavi , M and Babaee , M . 2005 . Study and measurement of Pb, Cd, Cr and Zn in green leaf of tea cultivated in Gillan Province of Iran . Pakistan J Nutrit , 4 : 270 – 272 .
- Falahi , E , Hedaiati , R and Ghiasvand , AR . 2010 . Survey of iron, zinc, calcium, copper, lead, and cadmium in rice samples grown in Iran . Food Add Contam, Part B , 3 : 80 – 83 .
- Ferrara , L , Montesanoa , D and Senatore , A . 2001 . The distribution of minerals and flavonoids in the tea plant . Il Farmaco , 56 : 397 – 401 .
- Han , LX and Li , R . 2002 . Determination of minerals and trace elements in various teas by ICP-AES . Spectrosc Spect Anal , 22 : 304 – 306 .
- Han , WY , Liang , YR , Yang , YJ , Ma , LF and Ruan , JY . 2006a . Effect of processing on the Pb and Cu pollution of tea in Chinese . J Tea Sci , 26 : 95 – 101 .
- Han , WY , Zhao , FJ , Shi , YZ , Ma , LF and Ruan , JR . 2006b . Scale and causes of lead contamination in Chinese tea . Environ Pollut , 139 : 125 – 132 .
- Karak , T and Bhagat , RM . 2010 . Trace elements in tea leaves, made tea and tea infusion: a review . Food Res Int , 43 : 2234 – 2252 .
- Karimi , G , Hasanzadeh , MK , Nili , A , Khashayarmanesh , Z , Samiei , Z , Nazari , F and Teimuri , M . 2008 . Concentrations and health risk of heavy metals in tea samples marketed in Iran . Pharmacologyonline , 3 : 164 – 174 .
- Kumar , A , Nair , AGC , Reddy , AVR and Gary , AN . 2005 . Availability of essential elements in Indian and US tea brands . Food Chem , 89 : 441 – 448 .
- Marcos , A , Fisher , G and Hill , SG . 1996 . Preliminary study using trace element concentrations and a chemo metrics approach to determine the geological origin of tea . J Anal Atom Spectrom , 13 : 521 – 525 .
- Matsuura , H , Hokura , A , Katsuki , F and Itoh , A . 2001 . Multielement determination and speciation of major-to-trace elements in black tea leaves by ICP-AES and ICP-MS with the aid of size exclusion chromatography . Anal Sci , 17 : 391 – 398 .
- Naithani , V and Kakkar , P . 2005 . Evaluation of heavy metals in Indian herbal teas . B Environ Contam Toxicol , 75 : 197 – 203 .
- Narin , I , Colak , H , Turkoglu , O , Soylak , M and Dogan , M . 2004 . Heavy metals in black tea samples produced in Turkey . Bull Environ Contam Toxicol , 72 : 844 – 849 .
- Nookabkaew , S , Rangkadilok , N and Satayavivad , J . 2006 . Determination of trace elements in herbal tea products and their infusions consumed in Thailand . J Agr Food Chem , 54 : 6939 – 6944 .
- Onianwa , PC , Adetola , IG , Iwegbue , CMA , Ojo , MF and Tella , OO . 1999 . Trace heavy metals composition of some Nigerian beverages and food drinks . Food Chem , 66 : 275 – 279 .
- Pedro , LF , Martin , MJ , Pablos , F and Gonzalez , AG . 2001 . Differentiation of tea (Camellia sinensis) varieties and their geographical origin according to their metal content . J Agric Food Chem , 49 : 4775 – 4779 .
- Qin , F and Chen , W . 2007 . Lead and Copper in tea samples marketed in Beijing (China) . B Environ Contam Toxicol , 78 : 128 – 131 .
- Rahnamaye Chitsaze , A . 2006 . Tea property . Pezeshky emrooz-Med Today J , 16 : 1 – 2 .
- Salehinejad , M and Aflaki , F . 2010 . Toxic and essential mineral elements content of black tea leaves and their tea infusions consumed in Iran . Biol Trace Elem Res , 134 : 109 – 117 .
- Seenivasan , S , Manikandan , N , Muraleedharan , NN and Selvasundaram , R . 2008 . Heavy metal content of black teas from south India . Food Control , 19 : 746 – 749 .
- Tokahoglu , S and Kartal , S . 2004 . Bioavailability of soil-extractable metals to tea plant by BCR sequential extraction procedure . Instrum Sci Technol , 32 : 387 – 400 .
- Wang , CF , Ke , CH and Yang , JY . 1993 . Determination of trace elements in drinking tea by various analytical techniques . J Radioan Nucl Chem , 173 : 195 – 203 .
- Xie , M , Vonbohlen , A , Klockenkamper , R and Jian , X . 1998 . Multielement analysis of Chinese tea by total reflection X-ray fluorescence . Z Lebensm Unters Forsch A , 207 : 31 – 38 .
- Yuan , C , Gao , E , He , B and Jiang , G . 2007 . Arsenic species and leaching character in tea . Food Chem Toxicol , 45 : 2381 – 2389 .