DOI: 10.5194/hess-19-1589-2015
Scopus记录号: 2-s2.0-84926443342
论文题名: Technical Note: Field experiences using UV/VIS sensors for high-resolution monitoring of nitrate in groundwater
作者: Huebsch M ; , Grimmeisen F ; , Zemann M ; , Fenton O ; , Richards K ; G ; , Jordan P ; , Sawarieh A ; , Blum P ; , Goldscheider N
刊名: Hydrology and Earth System Sciences
ISSN: 10275606
出版年: 2015
卷: 19, 期: 4 起始页码: 1589
结束页码: 1598
语种: 英语
Scopus关键词: Economic and social effects
; Groundwater
; Meteorological instruments
; Nitrates
; Spectrophotometers
; Double wavelengths
; Field experience
; High-resolution monitoring
; Hydrogen carbonates
; Multiple wavelengths
; Nitrate nitrogen
; Spring discharges
; Technical notes
; Calibration
; calibration
; concentration (composition)
; discharge
; field method
; groundwater
; hardware
; nitrate
; organic matter
; qualitative analysis
; quantitative analysis
; sensor
; trade-off
; turbidity
; ultraviolet radiation
英文摘要: Two different in situ spectrophotometers are compared that were used in the field to determine nitrate-nitrogen (NO3-N) concentrations at two distinct spring discharge sites. One sensor was a double wavelength spectrophotometer (DWS) and the other a multiple wavelength spectrophotometer (MWS). The objective of the study was to review the hardware options, determine ease of calibration, accuracy, influence of additional substances and to assess positive and negative aspects of the two sensors as well as troubleshooting and trade-offs. Both sensors are sufficient to monitor highly time-resolved NO3-N concentrations in emergent groundwater. However, the chosen path length of the sensors had a significant influence on the sensitivity and the range of detectable NO3-N. The accuracy of the calculated NO3-N concentrations of the sensors can be affected if the content of additional substances such as turbidity, organic matter, nitrite or hydrogen carbonate significantly varies after the sensors have been calibrated to a particular water matrix. The MWS offers more possibilities for calibration and error detection but requires more expertise compared with the DWS. © Author(s) 2015. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/78561
Appears in Collections: 气候变化事实与影响
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作者单位: Karlsruhe Institute of Technology (KIT), Institute of Applied Geosciences (AGW), Kaiserstr. 12, Karlsruhe, Germany; Teagasc, Environment Research Centre, Johnstown Castle, Co., Wexford, Ireland; University of Ulster, School of Environmental Sciences, Cromore Road, Coleraine, United Kingdom; National Resources Authority, Amman, Jordan
Recommended Citation:
Huebsch M,, Grimmeisen F,, Zemann M,et al. Technical Note: Field experiences using UV/VIS sensors for high-resolution monitoring of nitrate in groundwater[J]. Hydrology and Earth System Sciences,2015-01-01,19(4)