- P-ISSN 1225-0163
- E-ISSN 2288-8985
- P-ISSN1225-0163
- E-ISSN2288-8985
- SCOPUS, ESCI, KCI
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Determination of Ammonia-N in Environmental Water by Air-segmented FIA
Analytical Science and Technology / Analytical Science and Technology, (P)1225-0163; (E)2288-8985
1995, v.8 no.4, pp.787-792
Feng,
Y., Tian,
L., Wang,
W., &
Wu,
Q.
(1995). Determination of Ammonia-N in Environmental Water by Air-segmented FIA. , 8(4), 787-792.
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Abstract
A method for determination of ammonia-N in environmental water by air-segmented flow injection analysis using the colour reaction of phenol and sodium hypochlorite with ammonia was described in this paper. When the reaction temperature is <TEX>$70^{\circ}C$</TEX> and the reaction residence time is 5 minutes, a sample frequency of <TEX>$60-90h^{-1}$</TEX> can be achieved. The detection limit and relative deviation are <TEX>$0.05mg.ml^{-1}$</TEX> and 4%, respectively. The recovery of this method is 96 - 110%, and the determination results of the method are greatly agreement with standard colorimetric method.
- keywords
- Air-Segmented FIA, Ammonia-N, Environmental Water, Spectrophotomentry
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