%0 Conference Proceedings %T A Novel Direct and Cost Effective Fabrication of Paper-Based Microfluidic Device by Commerical Eye Pencil and its Application for Simultaneous Calcium and Magnesium Determination %A Abedi Ostad, Maryam %A Hajniabaygi, Akram %A Heidari, Taherh %J بیست و سومین سمینار شیمی تجزیه ایران %D 2016