ﻲﺑﺮﻌﻟا ﺺﺨﻠﻤﻟا
تﺰﻛر تﺎﯿﻨﻘﺗ ماﺪﺨﺘﺳﺈﺑ ءﺎﻤﻟا ﻦﻣ ﺎﮭﺘﻟازإ و لزﺎﻨﻤﻟا ﻲﻓ ﺔﻣﺪﺨﺘﺴﻤﻟا تاﺮﮭﻄﻤﻟا دﻮﺟو ﻒﺸﻛ ﻰﻠﻋ ﺔﺳارﺪﻟا هﺬھ
يﺮﺘﯿﻣﺎﺘﻟﻮﻔﻟا :لﺎﺜﻤﻟا ﻞﯿﺒﺳ ﻰﻠﻋ ﺔﯿﺋﺎﯿﻤﯿﻛوﺮﮭﻜﻟا يﺮﺋاﺪﻟا
ﻊﻣ ﻲﻀﺒﻨﻟا ﻞﺿﺎﻔﺘﻟا ﺔﯿﻨﻘﺗ ﺔﯿﻋﺎﺑﺮﻟا ﺔﺟﻮﻤﻟا يﺮﺘﯿﻣﺎﺘﻟﻮﻔﻟا,
ا ﺔﯿﺳﺎﺴﺣ ﻞﯾﺪﻌﺗ ﻷ
ﻲﺴﻜﻌﻟا ﻞﻋﺎﻔﺘﻟا ﺪﯾﺪﺤﺗ برﺎﺠﺗ .بﺎﻄﻗ ﻲﺴﻜﻌﻟا ﺔﺒﺷو
لﺎﻘﺘﻧإ و لاﺰﺘﺧﻹا وأ ةﺪﺴﻛﻷا تﺎﯿﻠﻤﻌﻟ
ضﺎﻤﺣﻻا ﻞﺜﻣ تاﺮﮭﻄﻤﻟﺎﺑ ﺔﻗﻼﻋ تاذ لﺎﻜﺷﻻا ﻦﻣ ﺔﻔﻠﺘﺨﻣ ﺔﻋﻮﻤﺠﻣ .ﺔﯿﺋﺎﺑﺮﮭﻜﻟاءﺎﯿﻤﯿﻜﻟا ﻖﯾﺮط ﻦﻋ نوﺮﺘﻜﻟﻻا قﻮﻓ ,ﺔﯾﻮﻀﻌﻟاﺮﯿﻏ ضﺎﻤﺣﻻا ,ﺔﯾﻮﻀﻌﻟا ھ مﻮﯾدﻮﺼﻟا ,ﻦﯿﺟورﺪﯿﮭﻟا ﺪﯿﺴﻛُأ
ﺎﺘﯿﺑ ,(ﺲﻛرﻮﻠﻜﻟا) ﺖﯾرﻮﻠﻛﻮﺒﯿ -
ﻦﯿﻨﯾدأﺪﯿﻣﺎﻨﯿﺗﻮﻜﯿﻧ ﻲﺋﺎﻨﺛ
ﻟا ﺪﯾﺎﺗﻮﻠﻜﯿﻨ لﺎﻘﺘﻧا تﻼﻋﺎﻔﺘﻟ تﺎﺒﻛﺮﻤﻟا هﺬھ مﺪﺨﺘﺴﺗ .ﺎﮭﻟ هﺪﺴﻛﻷا كﻮﻠﺳ ﺔﻈﺣﻼﻣ ﺖﻤﺗ ﺪﻗو
.لاﺰﺘﺧﻹاو ةﺪﺴﻛﻷا تﺎﯿﻠﻤﻋ لﻼﺧ نوﺮﺘﻜﻟﻻا يﺮﺘﯿﻣﺎﺘﻟﻮﻔﻟا ماﺪﺨﺘﺳﺈﺑ تاﺮﮭﻄﻤﻠﻟ ﻲﺋﺎﯿﻤﯿﻛوﺮﮭﻜﻟا لاﺰﺘﺧﻹا ﻦﻣ ﻖﻘﺤﺘﻟا ﻢﺗ يﺮﺋاﺪﻟا
ﺎﺑﺮﻟا ﺔﺟﻮﻤﻟا يﺮﺘﯿﻣﺎﺘﻟﻮﻔﻟا, ﺔﯿﻋ
داﻮﻤﻟا ﻰﻠﻋ تاﺰﻔﺤﻤﻟﺎﺑ ﺔﺛﻮﻠﻤﻟا
ﺔﻄﺳاﻮﺑ رﻮﻄﻤﻟا ﻲﺟﺎﺟﺰﻟا نﻮﺑﺮﻜﻟا ﺐﻄﻘﻟ ةﺰﻔﺤﻤﻟا يﻮﻧﺎﻨﻟا ﻞﻜﺸﻟا تاذ ﺰﻔﺤﻤﻟا
و
ﻞﻋﺎﻔﺗ ﺢﻄﺳ ﻰﻠﻋ تاﺰﻔﺤﻤﻟا طﺎﺸﻧ ةﺰﯿﻤﻣ ﺔﻘﯾﺮﻄﺑ ﻲﺟﺎﺟﺰﻟا نﻮﺑﺮﻜﻟا ﺐﻄﻗ ضﺮﻌﯾ .ﺐﻄﻘﻟا ﺢﻄﺳ ﻰﻠﻋ تاﺮﮭﻄﻤﻟا
ﻲﻓ ﺐﻄﻘﻟا ٠،١
وأ مﻮﯿﺳﺎﺗﻮﺒﻟا ﺪﯾرﻮﻠﻛ ﻦﻣ لﻮﻣ ٠،١
ﺎﻧﺄﻛ مﻮﯾدﻮﺼﻟا تﺎﺘﯾﺮﺒﻛ ﻦﻣ لﻮﻣ ﺢﺴﻤﻟا لﺪﻌﻣ ﺪﻨﻋ ﺖﯾﻻ
١٠٠
ﺔﯿﻨﻘﺗ ماﺪﺨﺘﺳإ .ﺢﺴﻤﻟا لﺪﻌﻣ ةدﺎﯾز ﻊﻣ لاﺰﺘﺧﻹاو ةﺪﺴﻛﻷا تﺎﯿﻠﻤﻌﻟ ﺔﯾدﺮط ﺔﻗﻼﻋ كﺎﻨھ .ﺔﯿﻧﺎﺛ /ﺖﻟﻮﻓ ﻲﻠﯿﻣ .ﻲﺟﺎﺟﺰﻟا نﻮﺑﺮﻜﻟا ﺐﻄﻗ ماﺪﺨﺘﺳﺈﺑ ﺔﯿﺳﺎﺴﺣو ﺔﻗد ﺮﺜﻛأ ثﻮﻠﻤﻟا ﺪﯾﺪﺤﺗ ﺔﯿﻠﻤﻋ ﻞﻌﺠﯾ ﺔﯿﻋﺎﺑﺮﻟا ﺔﺟﻮﻤﻟا يﺮﺘﯿﻣﺎﺘﻟﻮﻔﻟا
ﻔﻜﺑ ﺔﻨﺤﺸﻟا لﺎﻘﺘﻧإ ﺺﺋﺎﺼﺧ ﺪﯾﺪﺤﺗ ﻢﺗ ﺪﻗو ﻮﻧﺎﻨﻟا داﻮﻋأ ماﺪﺨﺘﺳﺈﺑ لﺪﻌﻤﻟا ﻲﺟﺎﺟﺰﻟا نﻮﺑﺮﻜﻟا ﺐﻄﻗ ﻰﻠﻋ ﺔﯿﻟﺎﻋ ةءﺎ
ﺢﻄﺳ ﻰﻠﻋ مﻮﯿﻧﺎﺘﯿﺗ ﻮﻧﺎﻨﻟا داﻮﻋأ ﺰﻔﺤﻤﻟا ﺔﯿﻟﺎﻌﻓ ﻦﻣ ﻖﻘﺤﺘﻟا ﻢﺗ .ﺐﻄﻘﻟا ﺢﻄﺳ ﻰﻠﻋ ﺰﻔﺤﻤﻟا تﺎﺒﺛ ﺖﻈﺣﻮﻟو مﻮﯿﻧﺎﺘﯿﺗ لاﺰﺘﺧﻹاو ةﺪﺴﻛﻷا تﺎﯿﻨﺤﻨﻣ ﻖﯾﺮط ﻦﻋ ﺐﻄﻘﻟا .
داﻮﻋأ دﻮﺟو ﻊﻗاﻮﻣ ﻊﻣ ﺔﻄﺒﺗﺮﻣ لاﺰﺘﺧﻹا ﻰﻨﺤﻨﻣ ﺔﻈﺣﻼﻣ ﻢﺗ
.ﺢﻄﺴﻟا ﻰﻠﻋ مﻮﯿﻧﺎﺘﯿﺗ ﻮﻧﺎﻨﻟا ﺢﺳﺎﻤﻟا ﻖﯾﺮط ﻦﻋ ﻢﺗ بﺎﻄﻗﻷا ﻰﻠﻋ ﺔﻟﺪﻌﻤﻟاو ﺔﺳﺎﺴﺤﻟا داﻮﻤﻠﻟ ﻲﺒﯿﻛﺮﺘﻟا ﺢﻄﺴﻟا ﻞﻜﺷ
ﺔﯿﺠﺴﻔﻨﺒﻟا قﻮﻓ ﺔﻌﺷﻷا ﻒﯿط و ﺚﻌﺒﻨﻤﻟا لﺎﺠﻤﻟا وذ يﺮﮭﺠﻤﻟا ﻲﻧوﺮﺘﻜﻟﻹا ةءﺎﻔﻜﺑ ﺖﻘﺒط ةرﻮﻄﻤﻟا تﺎﺳﺎﺴﺤﻟا .
ﻚﻠﺗ ﺮﯾﺪﻘﺗو ﺔﯿﺋﺎﯿﻤﯿﻛوﺮﮭﻜﻟا فﺎﻨﺻﻷا تﻼﺧاﺪﺗ ﺔﺳارﺪﻟ ﺔﯿﻟﺎﻋ ﺔﯿﻠﯿﻠﺤﺘﻟاو ﺔﯿﺋﺎﺑﺮﮭﻜﻟا قﺮﻄﻟا نأ ﺖﻨﯿﺑ ﻲﺘﻟا تﺎﺛﻮﻠﻤﻟا
تﺎﺒﻛﺮﻤﻟا ﺮﯾﺪﻘﺘﻟ ﺔﻔﻠﻜﺘﻟا ﺔﻠﯿﻠﻗ ﺎﮭﻧأ ﻰﻟإ ﺔﻓﺎﺿﻹﺎﺑ ﺔﯿﻟﺎﻋ ﺔﯿﺋﺎﻘﺘﻧإو ﺔﻗدو ﺔﻋﺮﺳ تاذ ،ﺔﻠﮭﺳ قﺮط ﻲھ ﺔﯿﺋﺎﺑﺮﮭﻜﻟا .
Abstract
The presence of disinfectants in virtually all types of household cleaning products is ubiquitous. These disinfectants are further classified into organic and inorganic compounds. Because of excessive uses, these disinfectants find their way into the environment via wastewater. Since their presence in the environment leads to many severe health complications, therefore, several analytical methods have been developed for their detection. However, due to cost, complicated handling, and portability conventional analytical methods are not preferred for the routine and in- field analysis. Herein, a simple, fast, inexpensive, and sensitive method based on electrochemical detection is presented. For the purpose, titanium dioxide (TiO2) catalytic material was synthesized. Using as-prepared TiO2 suspension in deionized water, a modified glassy carbon electrode (GCE) was prepared via drop coating method. The fabricated electrode was tested against various organic acids, inorganic acids, hydrogen peroxide, sodium hypochlorite, and β-nicotinamide adenine dinucleotide, as these chemicals are commonly used as disinfectants, for their electrochemical reduction behavior. The composites of TiO2 with other catalytic materials were also prepared and tested against above mentioned chemicals. The morphology and structural features of as-synthesized TiO2 were investigated using UV-visible Absorption Spectroscopy (UV-Vis), Fourier Transform Infrared Spectroscopy (FTIR), X-ray Diffraction (XRD), and Scanning Electron Microscopy (SEM). The charge transfer properties of TiO2 modified GCE was evaluated with electrochemical impedance spectroscopy (EIS). The cyclic voltammetry (CV) was utilized to record oxidation/reduction behavior and current-potential relation. To establish linear concentration range and find the limit of detection, square wave voltammetry (SWV) was used. The modified electrode stability and reproducibly was
checked. The real sample analysis and recovery study were performed. Finally, the proposed method was compared with other analytical methods and found simple, fast, economic, and portable.
