凯氏氮量测定的简易蒸馏装置

A simple distillation device for determination of nitrogen content

简易的凯氏氮蒸馏装置(如图1),设计巧妙之处是冷凝管的使用,改善了凯氏定氮常量装置易产生倒流导致实验失败的弊端,完善了定氮技术。使定氮技术极易普及。为饲料、药品、食品等氮量的测定找到了一种简易、准确、经济的方法。并且将代替凯氏定氮方法校正其它定氮仪器,能自制,自校。

A simple distillation device for the determination of nitrogen content was designed. The most skillful design is the use of condensation tube, which improves kjeldahl＇s device, avoids flow backwards leading to failure of experiments, solves a long term existent difficult problem of big errors for semimicro method, and perfect basic theory of nitrogen determination technique. These make the technique of nitrogen determination widespread. The system is airtight,and precision is 0.00875 % or SO. This is a simple, accurate, and economic method for the determination of nitrogen content in feed, medicine and food. The device can be homemade and be self-calibration.