Nitrosamine bụ otu n'ime carcinogen atọ a ma ama n'ụwa, nke ọzọ bụ aflatoxins na benzo[a] pyrene.A na-emepụta Nitrosamine site na nitrite na amine nke abụọ na protein ma na-ekesa n'ọtụtụ ebe na ọdịdị. Ọdịnaya nke nitrosamine na azụ salted, shrimps a mịrị amị, biya, anụ ezi na soseji dị elu. Ogologo oge itinye oge maka ijuputa anụ na akwukwo nri nwekwara ike ịmepụta nitrite. Nitrite na nitrate bụ nnu inorganic a na-ahụkarị na nri kwa ụbọchị na mmiri ọṅụṅụ.Nitrate na nitrite bụ ihe mmetọ ion na GB 2762-2017 aha ya bụ "National Food Safety Standard -Limit of pollutants in food".GB 5009.33-2016 aha ya bụ "National Food Safety Standards for Determination of Nitrite and Nitrate in Food" bụ ịhazi mkpebi siri ike nke ihe abụọ a, na ion chromatography dị ka usoro mbụ gụnyere na ọkọlọtọ.
A na-edozi ihe nlele ahụ dịka GB/T 5009.33 si dị, na mgbe mmiri ozuzo protein na mwepụ abụba gasịrị, a na-ewepụta ma sachaa ihe nlele ahụ site na ụzọ kwekọrọ.Iji CIC-D160 ion chromatograph, SH-AC-5 anion kọlụm, 10.0 mM NaOH eluent na bipolar pulse conductance usoro, n'okpuru ọnọdụ chromatographic akwadoro, chromatogram bụ dị ka ndị a.
Oge nzipu: Eprel-18-2023