关键词: 光电子能谱, 膜, 渗析, 烷基水杨酸钙, 烷基水杨酸镁, 清净剂

Abstract: In order to analyze the existing forms of metallic compounds in alkyl-salicylate metal detergents including calcium detergent and magnesium detergent, the method of membrane dialysis was used to separate the calcic compounds and the magnesian compounds from the detergents respectively. The compounds inside the membrane were transformed into their solid states post to solvent removal. Test results of atomic absorption spectroscopy (AAS) showed that almost all the metallic compounds in the detergents were remained inside the membrane, therefore, the compositions of the solid calcic compounds and the solid magnesian compounds could be represented the metallic compounds in the related detergents. X-ray Photoelectron Spectroscopy (XPS) was used to measure the binding energies of the metallic compounds, and the results showed that the calcic compounds in the alkyl-salicylate calcium detergent were mainly composed of Ca(OH)2, CaCO3 and calcium alkyl-salicylate; the magnesian compounds of the magnesium detergent were composed of MgOx, MgCO3 and magnesium alkyl-salicylate.

Key words: electron spectroscopy, membrane, dialysis, calcium alkyl-salicylate, magnesium alkyl-salicylate, detergent