The characteristic methods of determination 1. Microscale sample; (1-5 mg) 2 t need short time to determine sample 3. Identify structure very fast 1.重点;识谱并了解简单原理The characteristic methods of determination 1. Microscale sample; (1 – 5 mg) 2. It need short time to determine sample 3. Identify structure very fast. 1. 重点；识谱并了解简单原理