Flow Injection Analysis with Spectrophotometry for Ammonium Ion with 1-Naphthol and Dichloroisocyanurate
Bibliographic Information
- Other Title
-
- Original Paper
Search this article
Abstract
The proposed FIA is based on a modified Berthelot reaction of ammonium ion with 1-naphthol and dichloroisocyanurate to form an indophenol blue derivative. We study to improve the sensitivity of the modified Berthelot reaction, and propose the addition of acetone. The FIA consists of two line flow system. Reagent solution 1 is an alkaline (14.5 g L-1 of NaOH) – sodium dichloroisocyanurate (1.2 g L-1) solution containing of trisodium citrate dehydrate (4 g L-1). Reagent solution 1 plays a sample carrier role in the FIA. Reagent solution 2 is 1-napthol (24 g L-1) solution (water : acetone : ethanol = 4 : 1 : 5). The interference of foreign ions in the sample is studied and removed by the addition of the complexing reagent, such as citrate. A linear range of the FIA is 0 to 4.0 μg mL-1 of ammonium ion. The relative standard deviation is 0.6% for 2.0 μg mL-1 of ammonium ion (n = 10) and the detection limit is 0.013 μg mL-1 of ammonium ion. The FIA is applied to environmental water samples, such as river, lake, and sea water.
Journal
-
- Journal of Flow Injection Analysis
-
Journal of Flow Injection Analysis 26 (1), 37-, 2009
Japanese Association for Flow Injection Analysis
- Tweet
Keywords
Details 詳細情報について
-
- CRID
- 1390564238023615360
-
- NII Article ID
- 130007484389
- 40016792026
-
- NII Book ID
- AA10962565
-
- ISSN
- 24337374
- 0911775X
-
- NDL BIB ID
- 10410099
-
- Text Lang
- en
-
- Data Source
-
- JaLC
- NDL
- CiNii Articles
-
- Abstract License Flag
- Disallowed