TITLE:
Neutron Activation Analyses Used to Study Elemental Accumulation in Some Marine Macrophytes (Mediterranean Sea Coast of Egypt)
AUTHORS:
N. Nassar, A. Kravtsova, M. Frontasyeva, M. M. Sherif
KEYWORDS:
Algae and Seagrass, Elemental Analysis Mediterranean Sea, Neutron Activation Analysis
JOURNAL NAME:
American Journal of Analytical Chemistry,
Vol.8 No.6,
June
15,
2017
ABSTRACT: The concentrations of Na, Mg, Al, S, Cl, K, Ca, Sc, Ti,
V, Cr, Mn, Fe, Co, Ni, Zn, As, Se Br, Rb, Sr, Zr, Mo, Ag, Sb, I, Cs, Ba, La, Sm,
Eu, Tb, Yb, Hf, Ta, W, Au, Th and U in 6 types of marine macrophytes (algae and
seagrass): Gelidium pusillum (Stackhouse) Le Jolis, Ulva intestinalis Linnaeus, Amphiroa
rigida J.V. Lamouroux, Hypnea sp., Cystoseira sp. and Posidonia oceanica (L.) Delile (seagrass) collected from 3 stations along the Mediterranean Sea coast
of Egypt were determined using instrumental neutron activation analysis. The contents
of elements in marine macrophytes indicated that they accumulated elements at different
levels depending on their type of species (brown, red, green and seagrass) and the
ambient water conditions. However, the concentrations of Cr, Co, Ni, Se, Zr, Mo,
Ag, Cs, La, Sm, Eu, Yb, Hf, Ta, Au and U were very similar in all samples. In general
the levels of classically investigated elements, particularly Mn, Fe, Co, Ni and
Zn determined in the macrophytes in the present study are lower or within the wide
range of values previously reported
for species of these genera sampled along the Egyptian Mediterranean coast.