![]() ![]() ![]() The sensor was easy to use, small, inexpensive and portable, enabling drivers to accurately measure their own blood alcohol level and providing convenient speed in forensic applications.Īlcohol (ethanol C 2H 5OH) is widely used in the medical, chemical and beverage industries. The results of alcohol detection with the developed sensor showed no significant difference from the results of spectrophotometric detection at a 95% confidence level ( p > 0.05). ![]() The developed alcohol sensor presented good operational accuracy (RSD = 0.30–1.90%, n = 8) and good stability for 21 days when stored at 25 ☌ and 75 days when stored at 4 ☌. Alcohol concentration could be determined using the naked eye in the range of 0.00 to 10% v/ v. The response of the proposed sensor toward alcohol was linear from 0.10 to 2.5% v/ v. In the presence of alcohol, the orange colorimetric sensor changed color to brown, green and, ultimately, blue, depending on the concentration of alcohol in the sample. Detection was based on the color change of a potassium dichromate-sulfuric acid solution absorbed by melamine foam. A novel foam-based colorimetric alcohol sensor was developed for the detection of alcohol in saliva. ![]()
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |