Page 187 - Analytical method for food addtives
P. 187
Method applied to real 18 Detection limit 0.1 µg/mL, RSD 2–16 % samples (n=3) 7 93 % recovery of nitrite. CV~8 %. Calibration curve linear Precision of method ppm of NaNO 2 concentration in final solution between 0.2 and 1.0 established 12 Using enzyme solution: Nitrite assay linear 10 –8 –10 –2 M with LOD Precision of
Spinach Meat Beer Human plasma and urine
Colorimetric Enzymatic spectrometric = suphanilamide = sulphamethizole = sulphadimidine
IC HPLC Key: SAM SM SD
