Need suggestions on sensor

[luckyrei]

Hye everyone..
Recently there are many products built to detect alcohol percentage in human's breath. But..i was thinking, is there any suitable sensor can be used to detect alcohol (for ex: ethanol) in liquid or maybe in a solid (for ex: food)? please help me..i've been searching for many types of sensors..but all i found were not suitable..
Any suggestions are welcome
THANKS..

 

[ama_trig]

well you can use density (for liquid alcohol) and then according to its depth inside the liquid calculate amount

 

[luckyrei]

thanx ama_trig..

but..is it possible to use photodetector to detect the existence of alcohol?
due to my research..ethanol has its own wavelength range in infrared spectroscopy..
or is there any specific infrared sensor could be used to detect alcohol in liquid?

 

[pranam77]

You may consider MQ-2 or MQ-5 which are manuafctured by Hanwei electronics. have a look at thier website for more info about various other sensors too..the site is in chinnese. use Google translator to view in English......Cheers
https://www.hwsensor.com