Kjeldahl method (KM) and elemental analyzer method (EA) are commonly used in measuring TN.Their difference, however, is often overlooked.

• 凯氏蒸馏法和元素分析仪法作为常规方法通用于上述领域的全氮含量测定，但两种方法在实际应用中的差异却常被忽视。