The new synthetic compound of 2,2 dimethyl butanoic acid has been separated and analyzed by GC MS.2,2 dimethyl butanoic acid has been identified in the compound.

• 采用气相色谱-质谱联用法（GC-MS）首次分离鉴定了新合成的2，2-二甲基丁酸合成液，共分离出6个组分，经质谱裂解机理研究，鉴定出里面确含2，2-二甲基丁酸。