da Rocha, Caroline O. published the artcileMethylene violet 3 RAX dye as a new reagent for the determination of nitrite in cured meats and vegetables, SDS of cas: 4569-86-2, the publication is Journal of the Brazilian Chemical Society (2017), 28(8), 1528-1533, database is CAplus.
In this contribution we propose, for the first time, the use of Methylene Violet 3 RAX dye for the detection and determination of nitrite in cured meats and vegetables. Quantification is based on the decrease in absorbance of the dye, which is proportional to the nitrite concentration The proposed method presents linear response (r > 0.99) in the range from 1.8 to 9 μmol L-1 of nitrite, with a limit of detection of 0.14 μmol L-1. Satisfactory accuracy with the official Association of Official Agricultural Chemists (AOAC) method was achieved, and the method was successfully applied to a wide range of cured meats and vegetables. The proposed method offers similar or superior performance to other optical methods used for the determination of nitrite in different matrixes, with advantage in terms of reduction of chem. waste for each anal., by minimizing amounts of reagents and products.
Journal of the Brazilian Chemical Society published new progress about 4569-86-2. 4569-86-2 belongs to chlorides-buliding-blocks, auxiliary class Other Aromatic Heterocyclic,Salt,Amine,Benzene, name is 3-Amino-7-(diethylamino)-5-phenylphenazin-5-ium chloride, and the molecular formula is C22H23ClN4, SDS of cas: 4569-86-2.
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