Determination of nitrite by flow injection spectrophotometry using a home-made flow cell detector.
A simple, rapid, low cost and accurate determination using flow injection spectrophotometry with a home made flow cell detector, in combination with green LED and photodiode, had been developed for nitrite based on the Griess-Saltzman reaction, measuring the absorbance at 525 nm. The proposed system is able to monitor nitrite in freshwater samples at a throughput of 60 samples per hour with a relative standard deviation (%RSD) of less than 2.4% and a detection limit of <7 microg dm(-3). The calibration graph was linear between 0.010 - 1.0 mg dm(-3).
Hirata
Shizuko
S
Marine Resources and Environment, National Institute of Advanced Industrial Science and Technology, 2-2-2 Hiro-suehiro, Kuire 737-0197, Japan. s-hirata@aist.go.jp
Amma
Bhavaniamma Vijayalekshmi
BV
Karthikeyan
Sathrugnan
S
Toda
Kei
K
D004867:Equipment Design; D017022:Flow Injection Analysis; D009573:Nitrites / Q000032:analysis*; D013057:Spectrum Analysis / Q000295:instrumentation* / Q000379:methods
D009573:Nitrites