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Atomic absorption spectroscopic determination and comparison of trace elements in the seaweeds collected at Mandapam, Tamil Nadu, India

A.Bhanu Prasad, D.Raman, Pasham Venkateshwalu, M.Vijay Kumar, B.Gouthami, B.Sarala, R.Nageswra Rao, U.S.N.Murthy, Y.V.Swamy

Many marine algae are being used by human beings, in many edible, medicinal and commercial products. SargassumWightii, Dictyota dichotoma, Hypnea musciformis, Jania Rubens, Halimeda, Kappaphycus Alvarezii, Turbinaria conoides, Cylindracea and Padina Gymnospora were collected fromPalk bay, mandapam, Tamilnadu, India. Toxic (Pb, Cd, Pt, Pd and Cr) and essential (Zn,Mn, Ni, Co, Cu and Fe) metals in eight algae were determined by Flame atomic absorption spectrometry (FAAS).Our results showed that Fe, Zn, Pb, Mn and Cd were found insignificantly more than the other assessed elements in the studied algae. Of all the studied seaweed species the concentration of Cd, Ni, Cu and Cr were above theADI limits except in Kappaphycus alvarezii (Cu and Cr