Author
E.B. Sandell
Bio: E.B. Sandell is an academic researcher from University of Minnesota. The author has contributed to research in topics: Chondrite & Rhodamine B. The author has an hindex of 17, co-authored 26 publications receiving 1295 citations.
Topics: Chondrite, Rhodamine B, Hydrochloric acid, Dithizone, Rhodamine
Papers
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TL;DR: In this article, a procedure is described for the determination of quantities of iodide of the order of 0,05 to 3γ in 1 ml. solution or in a suitable amount of solid sample (sodium chloride).
Abstract: A procedure is described for the determination of quantities of iodide of the order of 0,05 to 3γ in 1 ml. solution or in a suitable amount of solid sample (sodium chloride). The method is based upon the strong catalytic effect of iodide upon the reaction between ceric sulfate and an excess of arsenious acid in dilute sulfuric acid (1,5–2N). The effect of temperature and foreign substances has been investigated and procedures have been given which are applicable in the presence of salts affecting the rate of the catalyzed reaction. By refinement of the experimental technique it should be possible to determine quantities of iodine much smaller than 0,05γ.
587 citations
TL;DR: In this article, the average arsenic content of the common igneous rocks was found to be about 2.5 p.p.m. As, distributed as follows: metal phase 12 p. p.m., troilite roughly 10 p.
168 citations
TL;DR: In this article, it was shown that rhodamine B chlorogallate with benzene from 6 M hydrochloric acid can be determined absorptiometrically or fluorimetrically in the extract.
58 citations
TL;DR: Ruthenium in amounts of 0 005-0 1 μg (and less if need be) can be determined by its catalysis of the slow reaction between cerium(IV) and arsenic(III) in sulfuric acid solution.
54 citations
TL;DR: The meteoritic abundance of antimony, based on chondrites, is about 0.1 p.p.m. as mentioned in this paper, not significantly different when the experimental error is considered, from the value 0.05 for meteorites.
50 citations
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TL;DR: In this paper, the authors compared the relative abundances of the refractory elements in carbonaceous, ordinary, and enstatite chondritic meteorites and found that the most consistent composition of the Earth's core is derived from the seismic profile and its interpretation, compared with primitive meteorites, and chemical and petrological models of peridotite-basalt melting relationships.
10,830 citations
TL;DR: The scale of the problem in terms of population exposed to high As concentrations is greatest in the Bengal Basin with more than 40 million people drinking water containing ‘excessive’ As as mentioned in this paper.
6,741 citations
TL;DR: In this paper, a new calculation of the crustal composition is based on the proportions of upper crust (UC) to felsic lower crust (FLC) to mafic lower-crust (MLC) of about 1.6:0.4.
5,317 citations
TL;DR: A table of abundances of the elements in the various major units of the Earth's lithic crust with a documentation of the sources and a discussion of the choice of units and data is presented in this article.
Abstract: This paper presents a table of abundances of the elements in the various major units of the Earth's lithic crust with a documentation of the sources and a discussion of the choice of units and data.
4,619 citations
TL;DR: In this article, a table of element abundances in the continental crust, calculated on the basis of a 1:1 mixture of granite and basalt abundances, is presented.
2,460 citations