Direct Detection of Water-dissolved Ammonia Using Paper-based Analytical Devices
- Title
- Direct Detection of Water-dissolved Ammonia Using Paper-based Analytical Devices
- Author
- 김용신
- Keywords
- Ammonia sensor; Berthelot reagent; Colorimetric sensor; Paper-based analytical device
- Issue Date
- 2023-03
- Publisher
- 한국센서학회
- Citation
- 센서학회지, v. 32, NO. 2, Page. 67.0-74.0
- Abstract
- A microfluidic paper-based analytical device (μPAD) is proposed for the selective detection of ammonia in water by using the modified Berthelot reagent and a fluidic channel consisting of hollow paper. The modified Berthelot reagents were uniformly dispersed in cyclohexane and then immobilized in a detection zone of the μPAD. The loading position of the reagents and the type of a sample flow channel were optimized to achieve a sensitive ammonia detection within a short analytical time. The NH3 μPAD exhibits a linear colorimetric response to the concentration of ammonia dissolved in water in the range of 1-100 mg L-1, and its limit-of-detection is 1.75 mg L-1. In addition, the colorimetric response was not influenced by the addition of 100 mg L-1 nitrogen containing compounds (sodium nitrate, sodium nitrite, uric acid, hydroxylamine, butylamine, diethylamine) or inorganic salts (NaCl, Na2HPO4), presenting the enough selectivity in the detection of water-dissolved ammonia against possible interferents. © 2023, Korean Sensors Society. All rights reserved.
- URI
- https://kiss.kstudy.com/Detail/Ar?key=4011670https://repository.hanyang.ac.kr/handle/20.500.11754/187911
- ISSN
- 1225-5475;2093-7563
- DOI
- 10.46670/JSST.2023.32.2.67
- Appears in Collections:
- COLLEGE OF SCIENCE AND CONVERGENCE TECHNOLOGY[E](과학기술융합대학) > CHEMICAL AND MOLECULAR ENGINEERING(화학분자공학과) > Articles
- Files in This Item:
There are no files associated with this item.
- Export
- RIS (EndNote)
- XLS (Excel)
- XML