测定乳粉中亚硝酸盐含量主要应用ＧＢ/Ｔ5009.33-1996格里斯试剂比色法(甲法)[1]。近来,我们发现有些乳制品厂家采用一种国际标准组织推荐的光度分析法ＩＳＯ6736(乙法)[2]来检测乳粉中亚硝酸盐含量。这两种方法虽均为盐酸萘乙二胺光度分析法,但其样品处理和所用试剂不同。为此 Determination of nitrite in milk powder The main application of GB / T5009.33-1996 Gris reagent colorimetry (A method) [1]. Recently, we found that some dairy manufacturers use a spectrophotometric method recommended by the International Organization for Standardization (ISO 6736) to detect nitrite content in milk powder. Although these two methods are naphthyl ethylenediamine hydrochloride photometric analysis, but the sample processing and reagents used are different. to this end