https://www.selleckchem.com/products/o-pentagalloylglucose.html 3 for cadmium to 11.2 ng/L for zinc with linear dynamic ranges from 0.1 to 500 μg/L and relative standard deviations from 2.2 to 6.3%. The sample preparation method was successfully applied for determination of the target metals in raw well water, treated well water, and river water. Validation was performed by analysis of a certified reference standard for trace metals in drinking water. Graphical abstract Schematic representation of the ultrasound-assisted micro solid-phase extraction protocol for the removal and recovery of heavy metals by the air-stable, granular, and reversible chelating polymer, poly (pyrrole-N-carbodithioic acid).Purpose The aim of this study was to identify characteristics of older persons with multiple sclerosis (MS) reporting high and low levels of resilience. We also examined the influence of resilience on three key elements of healthy aging level of disability, participation and health-related quality of life (HRQoL). Methods Data were extracted from the Canadian Survey of Health, Lifestyle and Aging with MS (n = 743). Lifestyle, psychological health, and quality of life variables were compared between people with high and low resilience scores controlling for confounding variables. We used hierarchical regression to determine the unique contribution of resilience and related variables to healthy aging. Results Roughly, 1 in 5 respondents reported high resilience (18.8%), while 1 in 3 reported low resilience (33.9%). The group having higher resilience scores lived with less disability (~ 10%) and fatigue, reported greater participation, exercised more, consumed a healthier diet and lived with greater social support and financial security, compared to the lower scoring group. Resilience added only 1-2% of predictive value explaining disability, participation and HRQoL when confounding variables were accounted for. Years since diagnosis, type of MS, depression, fatigue and res