فهرس المقالات Micro-funnel magnetic stirring-assisted liquid phase Microextraction حرية الوصول المقاله صفحة الملخص نص كامل 1 - Determination of Trace Amount of Manganese in Water Samples by Micro-funnel Magnetic Stirring-assisted Liquid Phase Microextraction Technique Majid Ramezani Maryam Ghalenoei 10.22034/jchr.2020.578302.0