University of Tabriz Food Research Journal 2008-515X 28 1 2018 03 21 Determination of nitrite residues in meat products marketed in Tabriz by spectrophotometric method Determination of nitrite residues in meat products marketed in Tabriz by spectrophotometric method 41 48 7166 FA M Hejazi Journal Article 2018 03 10 https://foodresearch.tabrizu.ac.ir/article_7166_bee4b795439119b0ca5dd0ff4b8eed7b.pdf