Nitrate and nitrite. Determination of nitrate and/or nitrite in foodstuffs and water by spectrophotometry after zinc reduction and Griess reaction (NMKL 194, 2013)


This document specifies a spectrophotometric method for the determination of nitrate/nitrite content in foodstuffs and water after zinc reduction and Griess reaction. The method has been validated in vegetables (lettuce), meat products, baby food, dairy product (milk) and surface water. The validation studie shows that the method fulfills the internationally accepted fitness for purpose criteria for precision and bias. Nitraatti ja nitriitti. Nitraatin ja/tai nitriitin määrittäminen elin­tarvikkeis­ta ja vedestä spektrofoto­metri­sesti sinkillä pelkistämisen ja Griessin reaktion jälkeen. (NMKL 194, 2013)
  • Produkt ID: NMKL194
  • Copyright: NMKL
  • Edition: 2013

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