Other
Scientific paper
Jul 1963
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1963gecoa..27..753e&link_type=abstract
Geochimica et Cosmochimica Acta, vol. 27, Issue 7, pp.753-767
Other
Scientific paper
A scheme for the analysis of chondritic material (other than volatile rich carbonaceous chondrites) is described which modifies the classical procedures by the introduction of simple ion exchange techniques. The macro constituents of the metallic phase are initially extracted with mercuric-ammonium chloride solution and then separated by elutriation from an anion exchange column. Fe, Ni and Co are then determined by spectrometric methods without interference from other ions. The aluminium is separated by ion exchange technique from other members of the R 2 O 3 group thereby avoiding the errors of the classical method. K 2 O and Na 2 O are determined by flamephotometry, CaO and MgO by gravimetric methods or by E.D.T.A titration, and C is centrifuged off, weighed and ignited. Sulphide is determined as sulphate after separation from extraneous ions by ion exchange technique. H 2 O and CO 2 are determined by absorption after liberation at 1175°C.
Easton A. J.
Lovering John F.
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