碱组分 meaning in English

basic constituents

A quantitative pretreatment scheme suitable to gc - ms analysis of bio - oil was proposed for the first time in china , and an extensive determination of the chemical composition of bio - oil fractions was performed by means of gc - ms coupling . these studies were crucial for the upgrading and utilization of bio - oil . using some novel designing method , which are suitable to biomass and pyrolysis characteristics , were applied in designing the fluid bed biomass flash pyrolysis system
并且率先在国内提出了适合于gc - ms分析的生物油的量化预处理方案(液?液萃取分离法) ，得出了各个组分(酸组分、碱组分、极性中性组分以及碳氢组分)在生物油中所占的份额，并对预处理所得的各个组分分别进行了gc - ms分析，鉴定出了上百种化学成分。