Two rapid and sensitive automated methods for the determination of nitrite and nitrate in soil samples

Techniques in Advancing the Capabilities of Various Nitrate Detection Methods: A Review

“…This analytical approach is attractive as a good alternative over traditional methods because of high throughput analysis, the low volume of sample and reagent, low cost and it being easy to operate. Hence, flow injection methods can be used as a water quality indicator to monitor parameters such as nitrate in a water sample [38][39][40][41][42][43][44][45][46][47].…”

Introduction of a spectrophotometric method for simultaneous determination of nitrite and nitrate in water samples using partial least squares

“…Still, the most frequently employed methodology for the determination of nitrite and nitrate is the Griess reaction (Greiss 1879;Abbas and Mostafa 2000;Kiso et al 2006;Pasquali et al 2007Pasquali et al , 2010Nagaraja et al 2010). However, for determination of nitrate, a reduction step is needed to reduce nitrate to nitrite.…”

“…However, for determination of nitrate, a reduction step is needed to reduce nitrate to nitrite. This conversion is accomplished by using a reduction step which is especially preferred when using injection methodologies (FIA and SIA), because it provides quantitative reduction within a short reaction time (Garcia-Robledo et al 2014;Pasquali et al 2010;Legnerova et al 2002;Cerda et al 1998;Karlicek et al 1988). The total nitrite content (initial nitrite plus nitrite produced by reduction of nitrate) is then determined spectrophotometrically by Griess method at a single wavelength.…”

Indirect cloud point extraction and spectrophotometric determination of nitrite in water and meat products

“…The most commonly used methods for the determination of nitrite in addition to spectrophotometry [4][5][6][7] include fluorometry [8] and FIAkinetic spectrophotometric [9] and electrochemical methods such as differential pulse polarography [10], amperometry [11] and potentiometry [12]. Spectrophotometry is the most widely used method for nitrite determination due to its simplicity and excellent limit of detection.…”