Mekala Mallaiah, Goli Venkat Reddy
Department of Chemical Engineering, BV Raju Institute of Technology, Hyderabad 502313, India.
Department of Chemical Engineering, National Institute of Technology, Warangal 506004, India.
Data Brief. 2018 Mar 29;18:947-960. doi: 10.1016/j.dib.2018.03.111. eCollection 2018 Jun.
The composition of multicomponent determination by colorimetric titration is difficult. This complexity is easily overcome by using Gas Chromatography technique instead of wet method for multi-component mixture analysis. In Gas Chromatography, first the standard chart is prepared by using the known amount sample concentration as the reference. Once calibration chart is prepared the unknown sample concentration easily measured by using the standard chart. In the present study a standard calibration chart developed for the four component system of acetic acid-methanol-methyl acetate-water. The samples were taken at various concentrations of all components and different chromatograms obtained under various concentrations respectively. The method of optimization was first carried out to get the sharp peaks of individual components and binary pairs also. By using those conditions, the multi components concentrations were estimated. From the present results, the area under gas chromatogram is linearly varying with mole% of the components compared to mass%.
通过比色滴定法进行多组分测定的成分分析很困难。通过使用气相色谱技术而非湿法进行多组分混合物分析，可以轻松克服这种复杂性。在气相色谱中，首先通过使用已知量的样品浓度作为参考来制备标准图谱。一旦制备好校准图谱，就可以使用标准图谱轻松测量未知样品的浓度。在本研究中，为乙酸-甲醇-乙酸甲酯-水的四组分体系绘制了标准校准图谱。在所有组分的不同浓度下采集样品，并分别在不同浓度下获得不同的色谱图。首先进行优化方法以获得各个组分和二元对的尖锐峰。利用这些条件，估算了多组分的浓度。从目前的结果来看，与质量百分比相比，气相色谱图下的面积与组分的摩尔百分比呈线性变化。
