以鹼金屬將苯膦化合物之碳-磷鍵以還原法切斷,並做烷化取代反應,其產物有時十分複雜,若利用調溫之質譜分析,其對產物之純度及成份可提供迅速方便之資料。
Temperature programmed mass spectroscopic method has been used to analyze the crude products of the alkali metal-induced reductive cleavage of phosphorous-carbon bond and the subsequent alkylation reactions. By this method, the purity of the product and the identities of the side products of a reaction can be conveniently determined.