| 加工定制:是 | | 品牌:浩瀚色谱 | | 型号:XiangyingGC7990plus | |
| 测量范围:ppm | | 测量对象:食品中的亚硝酸盐 | | 控温范围:450 ℃ | |
| 功率:2000 w | | 尺寸:480 mm | | 重量:45 kg | |
| 甲缩醛:食品中的亚硝酸盐 | | 甲醛:粗苯 | | 三苯:二甲苯 | |
| 变压器油:多氯联苯 | | 脂肪酸甲酯:环氧乙烷 | | | |
Nitrite as preservatives in meat processing and coloring agent has a long history, keep the color, fragrance and taste of meat, and the botulinum Clostridium inhibition, corrosion has not yet been found the ideal substitute. However the nitrite residue in food can with meat protein decomposition product of secondary amines combine to generate carcinogenic nitrosamines. Many methods for determination of nitrite, ion selective electrode method, spectrophotometric method, fluorescence method, colorimetric assay and so on. These methods are relatively complex, and by some substances that interfere.
Tengzhou City Xiangying Analysis Technology Co., Ltd. by derivative XiangyingGC7990plus gas chromatographic method were measured using in acidic conditions nitrite and cyclohexyl amino sulfonic acid sodium generate easy volatilization of cyclohexanol nitrite ester reaction, simplifies the pre-processing step, fast speed, accurate and sensitive and achieved satisfactory results.
亚硝酸盐作为肉类加工中的防腐剂和发色剂已有悠久的历史,可保持肉制品的色、香、味,同时对肉毒梭状芽孢杆菌有抑制作用,具一定防腐性,迄今尚未发现理想的替代品.然而食品中残留的亚硝酸盐可与肉类制品中蛋白质分解产物仲胺类物质结合生成致癌物质亚硝胺.检测亚硝酸盐的方法很多,有离子选择电极法、分光光度法、荧光法、比色测定法等.这些方法比较繁琐,并受到一些物质的干扰.
滕州市翔鹰分析技术有限公司采用衍生化XiangyingGC7990plus气相色谱法进行测定,利用在酸性条件下亚硝酸与环己基氨基磺酸钠作用生成易挥发的环己醇亚硝酸酯的反应,简化了前处理步骤,既快速又准确灵敏,取得了满意的效果.
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翔鹰技术,气相色谱行业*企业
1.专注气相色谱仪的研制
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