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长链脂肪族一元酸、二元酸是常用的工业原料,由于它们的沸点高,挥发性小,用于色谱分离和质谱鉴定时,常需要制备成相应的甲脂和二甲脂。酸的甲脂化的方法很多,可参考有关文献一元酸甲脂,二元酸二甲脂的质谱研究也很多本文通过C_(10)、C_(16)一元酸甲脂和C_8、C_(10)二元酸二甲脂作为实例,着重于比较一元酸甲脂和二元酸二甲脂质谱图的特征和差异,以利于解析质谱图。
Long-chain aliphatic monobasic acids, dibasic acids are commonly used industrial raw materials, due to their high boiling point, volatile, for chromatographic separation and mass spectrometry identification, often need to prepare the corresponding methylol and dimethyl fat. Acid methylated many ways, you can refer to the literature monomethyl acid, diacid dimethyl ether mass spectrometry also many research papers through C_ (10), C_ (16) monobasic and C_8, C_ (10 ) Dicarboxylic acid dimethylol as an example, focusing on the comparison of the characteristics and differences of the monobasic and dibasic acid dimethylspectrum profiles to facilitate mass spectrometry analysis.