二氧化氮是硝酸盐气溶胶的主要来源，构成PM 2.5和在紫外线下臭氧的主要部分。
NO2 is the main source of nitrate aerosols, which form an important fraction of PM2.5 and, in the presence of ultraviolet light, of ozone.
研究了硝酸盐与2,6 -二甲酚的显色反应。
A color reaction of nitrate with 2, 6-dimethylphenol was studied.
方法用盐酸萘乙二胺法检测样品中的亚硝酸盐。
Methods The nitrite was detected from samples by N-Naphthylethylenediamine Dihydrochloride.
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