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Updated: Aug 14, 2026

Sulfate Separation by Selective Crystallization with a Bis-iminoguanidinium Ligand
Published on: September 8, 2016
[Studies on quantitative structure-retention relationships for sulfides on stationary phases of different polarities]
Ya-Wei Wang1, Yu-Hong Gao, Xiao-Jun Yao
1College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou 730000, China.
Abstract:
Multiple linear regression (MLR) based on forward stepwise multiple regression techniques was used for predicting gas chromatographic retention index of sulfides after calculating their quantum-chemical parameters. The correlative quantitative model between the retention index (IR) of sulfides on four stationary phases of different polarities and their quantum chemical parameters was built. The results proved the strong predictive power of the models. The root-mean-square error (RMS) of the regression equation was less than 4%.
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