Pii: S0308-8146(98)00008-9
نویسنده
چکیده
Mercury levels in canned tuna ®sh were determined by cold vapour atomic absorption spectrophotometry while cadmium and lead levels were determined by ̄ame atomic absorption spectrophotometry. The metal contents in the samples, expressed in mg gÿ1 wet weight, varied from 0.20 to 0.66 with an average value of 0.29 for mercury, from 0.09 to 0.32 with an average value of 0.18 for cadmium and from 0.18 to 0.40 with an average value of 0.28 for lead. The results of this study indicate that tuna ®sh from the Mediterranean coast of Libya have concentrations well below the permissible levels for these toxic metals. Their contribution to the body burden can therefore be considered negligible. # 1999 Published by Elsevier Science Ltd. All rights reserved.
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Pii: S0308-8146(98)00072-7
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We describe in detail a software implementation of a current version of the 1-matrix method for computing light scattering by polydisperse, randomly oriented, rotationally symmetric particles. The FORTRAN 1-matrix codes are publicly available on the World Wide Web at http://www.giss.nasa.gov/&crmin. We give all necessary formulas, describe input and output parameters, discuss numerical aspects ...
متن کاملPii: S0308-8146(98)00203-9
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متن کاملPii: S1388-2457(98)00008-x
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