title: Determination of nitrite by flow injection spectrophotometry using a home-made flow cell detector.
abstract: 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).
authors.affiliation: 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
authors.forename: Shizuko
authors.initials: S
authors.lastname: Hirata
authors.forename: Bhavaniamma Vijayalekshmi
authors.initials: BV
authors.lastname: Amma
authors.forename: Sathrugnan
authors.initials: S
authors.lastname: Karthikeyan
authors.forename: Kei
authors.initials: K
authors.lastname: Toda
mesh_terms: D004867:Equipment Design; D017022:Flow Injection Analysis; D009573:Nitrites / Q000032:analysis*; D013057:Spectrum Analysis / Q000295:instrumentation* / Q000379:methods
chemical_list: D009573:Nitrites