Repetitiveness of the method was validated, and the oil content of some domestic products of petroleum wax was measured with the butanone-toluenemethod.
同时对该方法的重复性进行验证，并对国内部分石油蜡产品进行了含油量测定实验。
2
The method that analyzes the purity of toluene diisocyanate by capillary gas chromatograph was established.
建立了用毛细管气相色谱法测定甲苯二异氰酸酯纯度的方法。
3
In this paper, we use DOAS method to measure the spectra of benzene and toluene sample and analyze the results.