@article { author = {Salmanipour, Ashraf and Hooshmand, Sara}, title = {Development of An Optical Sensor Based on Sol-gel Doped with 2,6-Dichlorophenol Indophenol for Analysis of Ascorbic Acid}, journal = {Iranian Journal of Analytical Chemistry}, volume = {1}, number = {1}, pages = {1-6}, year = {2014}, publisher = {Payame Noor University, Iran}, issn = {2383-2207}, eissn = {2538-5054}, doi = {}, abstract = {In this work, an optical sensor for detection of ascorbic acid is described. The sensor is fabricated by casting and spin-coating silica sol-gel doped with 2,6-dichlorophenol indophenol on the glass plates. The sols are in turn obtained by acidic hydrolysis of various precursors such as tetraethoxysilane, triethoxymethylsilane and triethoxyoctylsilane in the presence of 2,6-dichlorophenol indophenol as dopant. Prepared sols then were coated on glass plates to form sol-gel films. UV-Vis spectrophotometric properties of 2,6-dichlorophenol indophenol doped in sol-gel films were studied and compared with in solution. At the optimum conditions the re‌sponse of film to ascorbic acid is fast and linear in 0.07 – 3.34 mmol L-1 range. Detection limit and relative standard deviation of presented sensor for determination ascorbic acid were 0.05 mmol L-1 and 1.32 %, respectively.}, keywords = {ascorbic acid,2,6-Dichlorophenol indophenol,Optical sensor,Sol-gel films}, title_fa = {توسعه یک حسگر نوری بر پایه سل- ژل اصلاح شده با 2و6-دی کلرو فنول ایندوفنول برای تجزیه اسکوربیک اسید}, abstract_fa = {هدف از مطالعه حاضر تهیه فیلمی از شبکه SiO2 دوپ شده با شناساگر رنگی 2و6-دی کلرو فنول ایندوفنول (DCIP) با استفاده از تکنیک سل-ژل می باشد. در ادامه پاسخ نوری حسگر ساخته شده به حضور اسکوربیک اسید در محلول مورد بررسی قرار گرفته است. حسگر حاضر برای آنالیز اسکوربیک اسید در نمونه های دارویی مورد استفاده قرار گرفت.}, keywords_fa = {اسکوربیک اسید,2و6-دی کلرو فنول ایندوفنول,حسگر نوری,فیلم سل-ژل}, url = {https://ijac.journals.pnu.ac.ir/article_495.html}, eprint = {https://ijac.journals.pnu.ac.ir/article_495_1db1332fa96fa6f70bf53ae4d91ca28a.pdf} }