| Autor: |
Anupama Vijayan, John Prakash |
| Jazyk: |
angličtina |
| Rok vydání: |
2022 |
| Předmět: |
|
| Zdroj: |
Green Analytical Chemistry, Vol 3, Iss , Pp 100043- (2022) |
| Druh dokumentu: |
article |
| ISSN: |
2772-5774 |
| DOI: |
10.1016/j.greeac.2022.100043 |
| Popis: |
Blending a cleaner, less expensive fuel like ethanol to petrol is a low-hanging fruit to address fuel crisis. However, blending bioethanol beyond the permissible limit can eventually corrode engine parts and cause fuel tank swelling. As a result, ensuring the quality of fuel blends is a critical step for consumers. We propose an inexpensive method for the precise quantification of fuel blend composition using a probing technique that exploits the structural switching and consequent change in transition probability of the probe molecule in polar and non-polar media. The UV-visible absorption spectrum of the probe is capable of exhibiting a hyperchromic shift with increasing ethanol composition in the blend. Two calibration models have been constructed based on the data - the hyperchromic shift-based model yielded excellent analytical figures of merit with LOD, LOQ and RMSEP values of 0.02,0.08 and 0.23%, respectively. Calibration using ratiometric analysis showed LOD, LOQ and RMSEP values of 0.01, 0.04 and 0.13%, respectively. The approach provided a simpler and sample-independent method that can be easily integrated into a LED-spectrophotometer for commercial and in-situ applications. A novel, biodegradable- hydrogel based probe delivery is illustrated and optimized. An analysis of real samples has been carried out using our method and the results discussed. |
| Databáze: |
Directory of Open Access Journals |
| Externí odkaz: |
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