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Kout El‐Kloub Fars Mahmoud

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Oct 2026

Solvation-weighted connectivity indices for GC retention prediction of polycyclic aromatic sulphur heterocycles.

Predicting the gas chromatographic retention indices (RIs) of sulphur-containing polycyclic aromatic hydrocarbons (S-PAHs) is challenging due to positional isomerism, which introduces subtle structural variations that are not well captured by conventional physicochemical descriptors or simple partitioning models. In th...

N. Moustafa, K. Mahmoud, A. Alsulami · SAR and QSAR in environmenta... · 0 citations

Aug 2026

Detour Ring Index as a Molecular Descriptor for Predicting Gas Chromatographic Retention of Sulfur Polycyclic Aromatics

Prediction of positional isomers in polycyclic aromatic sulfur compounds remains a challenge in analytical chemistry. Here, simple ring‐based topological descriptors derived from Distance/Detour Ring Indices (D/DIr05, D/DIr06, and D/DIr09) are evaluated for benzothiophene and dibenzothiophene positional isomers. D/...

N. Moustafa, Kout El‐Kloub Fars Mahmoud, Abdulelah H. Alsulami et al. · Separation Science Plus · 0 citations