The measuring methods for diacetyl content in beer including EBC method, GC method and chemical radiationmethod were optimized and compared.
对EBC法、 气相色谱法和化学发光法测定啤酒中的双乙酰含量进行了优化和比较。
3
Polyvinyl alcohol and sodium carboxymethyl cellulose are water soluble polymers, which are generally cross-linked by chemical method, physical method and radiationmethod.