Development of Bromocresol Purple Immobilized Optical Sensor for the Determination of Dissolved Ammonia | ||||
| Egyptian Journal of Chemistry | ||||
| Volume 66, Issue 10, October 2023, Page 119-124 PDF (540.17 K) | ||||
| Document Type: Original Article | ||||
| DOI: 10.21608/ejchem.2023.161658.7059 | ||||
 View on SCiNiTO | ||||
| Authors | ||||
Khurshid Tashpulatov   ; Marhabo Isakulova; Sherzodbek Mirzaev; Doston Toshpulatov; Abdullo Nasimov
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| Samarkand State University named after Sh.Rashidov, Samarkand, 140104, Uzbekistan | ||||
| Abstract | ||||
| In this work a fluorescent dye – bromocresol purple was immobilized to the xerogel prepared by the sol-gel technology. The effect of the solvent nature was explored to control the sensor properties and performance. Prepared final materials have shown stable and reproducible signals in a wide range of dissolved ammonia concentrations. Using i-butylalcohol leads to improved sensor properties because of the optimal match with the indicator dye with the immobilized environment. Developed optical ammonia sensors were investigated at different temperatures and their performance was also assessed. | ||||
| Keywords | ||||
| indicator; bromocresol purple; sol-gel; absorption; solvent; temperature | ||||
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