火腿肠中亚硝酸盐含量的测定

Determination of Nitrites Content in Ham Sausage

[目的]分析测定火腿肠中亚硝酸盐的含量。[方法]采用分光光度法确定亚硝酸钠的最佳吸收波长,检测市售2种不同种类的火腿肠中亚硝酸钠的含量。[结果]试验表明,亚硝酸钠的最佳吸收波长为538 nm,2种市售火腿肠中的亚硝酸钠含量根据国标都在安全食用范围之内。[结论]分光光度法检测食品中亚硝酸盐含量操作快捷、灵敏度高、设备简单、结果直观,效果较好。

[0bjective] To determine nitrites＇c0ntent in＇ham sausage. [Method] The optimum absorption wavelength of sodium nitrite was de- termined by speetrophotometry method. The sodium nitrite contents in marked 2 kinds of ham sausage were detected. [ Result] The experiment showed that, the optimum absorption wavelength is 538 nm, the sodium nitrite contents in marked 2 kinds of ham sausage are within safe edi- ble range according to international standard. [ Conclusion] Determination of sodium nitrite contents with speetrophotometry method has many advantages of rapid operation, high sensitivity, simple equipment, intuitional results and better effects.