Letter | Published:

Micro-Chemical Determination of Magnesium, Calcium and Zinc with Disodium Ethylene-diamine Tetra-acetic Acid

Nature volume 169, pages 11041105 (28 June 1952) | Download Citation

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Abstract

SINCE its original development for use as a water softener in the German textile industry1, the disodium salt of ‘Trilon B’ (ethylene-diamine tetraacetic acid) has been developed by Schwartzenbach and associates in the estimation of alkaline earths and other metals2. The application of this research to water hardness testing has been fully described in The Analyst3. The method has now been modified as described below.

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References

  1. 1.

    Bios, 421. Fiat, 644.

  2. 2.

    and , Chimia, 2, 56 (1948).

  3. 3.

    Analyst, 323 (1947).

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Author information

Affiliations

  1. Department of Botany (Plant Physiology), Edinburgh and East of Scotland College of Agriculture, 13 George Square, Edinburgh 8. Jan. 30.

    • ERIC W. DEBNEY

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DOI

https://doi.org/10.1038/1691104a0

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