Science in New Guinea, Volumes 13-14University of Papua New Guinea., 1987 - Natural history |
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Page 23
A large number of sequential chemical extraction schemes designed to isolate trace metals associated with each of these sedimentary phases have been proposed ( Skei & Paus , 1979 ; Tessier et al . , 1979 ; Salomons & Forstner ...
A large number of sequential chemical extraction schemes designed to isolate trace metals associated with each of these sedimentary phases have been proposed ( Skei & Paus , 1979 ; Tessier et al . , 1979 ; Salomons & Forstner ...
Page 24
with acidified H2O2 ( 30 % ) to oxidatively dissolve the organic fraction ( and sulfides ) , followed by an extraction with CH3COONH4 to prevent readsorption of the released metals . Guy et al . ( 1978 ) and Rendell et al .
with acidified H2O2 ( 30 % ) to oxidatively dissolve the organic fraction ( and sulfides ) , followed by an extraction with CH3COONH4 to prevent readsorption of the released metals . Guy et al . ( 1978 ) and Rendell et al .
Page 27
Sequential Chemical Extraction The method of Salomons & Forstner ( 1980 ) was used wherein the < 63 um fraction of the sediment undergoes a three step extraction procedure . The fraction < 63 um was chosen because trace metals are ...
Sequential Chemical Extraction The method of Salomons & Forstner ( 1980 ) was used wherein the < 63 um fraction of the sediment undergoes a three step extraction procedure . The fraction < 63 um was chosen because trace metals are ...
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Contents
A classification of seasonal rainfall in Papua New Guinea | 1 |
Fish ulcer disease from the Ok Tedi area of Western Province Papua New Guinea | 15 |
Trace metal fractionation in sediments from Lake Murray Papua New Guinea | 22 |
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activity associated attitudes Aure Australia authors Basin CALIFORNIA/SANTA CRUZ carbonate chemical Chemistry clusters collected common concentrations contained coral covered Department depth described determined Discussion distribution dominant environment environmental extraction Family field Figured fish foraminiferal forest Formation fraction fragments freshwater geological given groups important increase indicated INTRODUCTION iron Island Journal lake listed Locality major marine material mathematics mean measured methods Motupore noted occur organic Papua New Guinea plants Plate possible present Press produced Province rainfall range recorded reef References region reported Research River samples sand schools Science sediment sharks showed shown significant slope species stations stroke structures surface survey Table temperature trace metals transect unit University Library University of Papua vegetation village White zone