1960
DOI: 10.1021/ac60157a011
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Determination of Calcium and Magnesium with (Ethylenedinitrilo)tetraacetic Acid. Studies in Accuracy

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1961
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Cited by 48 publications
(13 citation statements)
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References 8 publications
(8 reference statements)
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“…Titular com solução de EDTA até viragem de vermelho-vinho para azul, isento de qualquer tonalidade arroxeada. Não deixar chegar a azul esverdeado (10).…”
Section: -Materiais E Métodosunclassified
See 1 more Smart Citation
“…Titular com solução de EDTA até viragem de vermelho-vinho para azul, isento de qualquer tonalidade arroxeada. Não deixar chegar a azul esverdeado (10).…”
Section: -Materiais E Métodosunclassified
“…As determinações em soluções puras são rápidas e precisas (10). No entanto, extraindo o cálcio e o magnésio dos solos, com ácido nítrico diluído (1,12), podem ocorrer cations que interfiram nas titulações com o EDTA.…”
Section: -Introduçãounclassified
“…Generally, water softening is used to remove excess amount of calcium and magnesium. In 1960 De Sousa reported the amount of calcium and magnesium in sea water by using titration against ethylene di-nitrilo tetra-acetic acid [2]. Inadequate supplement of pH value in water sample and alkalinity results in skin disorder, eyes irritation and damaged mucous membrane and hair fibers swelling [3].…”
Section: Introductionmentioning
confidence: 99%
“…14,15 Several reagents in colorimetric as well as spectrophotometric methods for the determination of magnesium have been described in the literature, such as eriochrome black T (EBT), titan yellow (TY), ammonium phosphate method, ethylenediaminetetraacetic acid (EDTA), paratolyl-2-thenohydroxamic acid and quinalizarin, 4-methyl-3-((1-H-Indol-3-iyl)(phenyl)methyl)-1-H-Indol (MPBIM), and trizma-chloranilate. [16][17][18][19][20][21] All of these procedures require a true solution of a coloured magnesium complex in which the colour intensity is directly proportional to the magnesium concentration.…”
Section: Introductionmentioning
confidence: 99%