Analytical methods - Nitrites (E249-250)

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There are several different methods available for analysing nitrite in food products. Earlier methods used cadmium reduction and colorimetric/photo spectrometry or conductivity while newer methods involve ion exchange or LC with UV detection.

EPA 300.0: Determination of inorganic anions by ion chromatography (drinking water and waste waters)

EPA 353.2: Determination of nitrogen, nitrate and nitrite with a colorimetric method - automated (water)

EPA 353.3: Determination of nitrogen, nitrate and nitrite with a colorimetric method - manual (water)

EPA 354.1: Determination of nitrogen and nitrite with spectrophotometric method (water)

ISO 2918:1975: Determination of nitrite content in meat and meat products

[file:///Y:/Unit_SCT/GOAL/12%20Projects%20-%20GWO/LE005%20-%20FP7-KBBE-2011-2.4.02-TDS_EXPOSURE/03_Project/WP5/Task%205.4.2%20-X-%20Choice%20of%20adequate%20analytical%20methods/ISO%203091-1975%20(E) ISO 3091:1975]: Determination of nitrite content in meat and meat products

ISO 6736:1982: Determination of nitrate and nitrite contents in dried milk

ISO 4099:1984: Determination of nitrate and nitrite in cheese

ISO 14673-1:2004: Determination of nitrate and nitrite content in milk and milk products

ISO 14673-2:2004: Determination of nitrate and nitrite content in milk and milk products. Routine method using segmented flow analysis

ISO 14673-3:2004: Determination of nitrate and nitrite content in milk and milk products. Routine method using cadmium reduction and flow injection analysis with in-line dialysis

BSI EN 12014-2:1997: Determination of nitrate and/or nitrite in vegetables and vegetable products, HPLC/IC method

BS EN 12014-4:2005: Determination of nitrate and/or nitrite in meat products. Ion exchange chromatographic (IC) method

BS EN 1214-5: 1997: Determination of nitrate and/or nitrite in vegetable containing food for babies and infants

AOAC 976.14-1977: Nitrate and nitrite in cheese. Modified Jones reduction method

AOAC 973.31-1996: Nitrites in cured meat. Colorimetric method

AOAC 993.03-1993: Nitrate in baby foods, spectrophotometric method

AOAC 935.48-1996: Nitrate and nitrites in meat. Xylenol method