adsorption isotherm data for obtaining isotherm. Langmuir adsorption pressure distribution (ILAPD) that gives Langmuir volume and Langmuir pressure parameters of shale samples. Furthermore, combining with a suite of NMR pulse sequences allows obtaining multi-dimensional correlation distributions between gas. 1. Introduction. Soil contamination due to heavy metals is one of the associated problems that impacts the life sustaining system. Higher toxicity and mobility in the. Several isotherms have been proposed to…