Portable Flow-Injection Analyzer for Nitrite and Nitrate in Natural Water

被引:0
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作者
Sathrugnan Karthikeyan
Tasuku Kajiya
机构
[1] National Institute of Advanced Industrial Science and Technology (AIST),Marine Resources and Environment
[2] Kinki University,Graduate School
来源
Analytical Sciences | 2004年 / 20卷
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摘要
A portable flow-injection analyzer with solid-state spectrophotometric detection for the determination of nitrite and nitrate is described. It utilizes the Griess-Saltzman reaction. The instrument comprises a two-channel peristaltic pump, two six-port injection valves and a mini cadmium column between them. The sample loops were connected serially. The detection limits of the method were less than 7 μg l−1 for NO2− and 10 μg l−1 for NO3−.
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页码:567 / 569
页数:2
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