电导率法检测原料乳掺假的方法研究

摘要

According to the research formerly, the conductivity significantly will increase when mixing electrolyte in the milk, and will reduce when non-electrolyte in the milk. Based on this characteristic, conductometric method was used to measure the conductivit%研究了使用电导率法检测原料乳中掺假的方法，根据乳中掺入电解质时电导率有显著增大、掺乳非电解质时电导率有显著减小的特性，使用电导率仪测定待检乳样的电导率，根据一定温度下电导率值与该温度下正常乳样的电导率对比，有显著差异的判定为乳样中有掺假物。此法具有成本低廉，操作方便快捷，检验时间短等特点，为快速定性检测方法，可以在线应用，适用于乳品企业进行原料乳掺假的快速检测。