Nattaporn Chanthasakda และ Pakorn Varanusupakul. (2013) Electrical field assisted liquid phase microextraction for determination of chromate ion. Chulalongkorn University.:ม.ป.ท.Nattaporn Chanthasakda และ Pakorn Varanusupakul. 2013. Electrical field assisted liquid phase microextraction for determination of chromate ion. ม.ป.ท.:Chulalongkorn University.;Nattaporn Chanthasakda และ Pakorn Varanusupakul. Electrical field assisted liquid phase microextraction for determination of chromate ion. ม.ป.ท.:Chulalongkorn University. 2013. Print.