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Journal of Analytical Methods in Chemistry
Volume 2014, Article ID 728068, 7 pages
http://dx.doi.org/10.1155/2014/728068
Research Article

A Modified o-Phthalaldehyde Fluorometric Analytical Method for Ultratrace Ammonium in Natural Waters Using EDTA-NaOH as Buffer

1School of Life and Environmental Sciences, Guilin University of Electronic Technology, Guilin 541004, China
2School of Automation Engineering, University of Electronic Science and Technology of China, Chengdu 611731, China

Received 25 August 2014; Revised 16 October 2014; Accepted 16 October 2014; Published 11 November 2014

Academic Editor: Jesus Simal-Gandara

Copyright © 2014 Hongzhi Hu et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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