CO2 LASER POWER OPTIMIZATION OF PHOTOACOUSTIC SPECTROMETER AND IT’S APPLICATION TO DETECT AMMONIA GAS (NH 3 ) CONCENTRATION ON ISOTONIC BEVERAGE CONSUMER’S BREATH

Magister Scientiae

View Publication Info
 
 
Field Value
 
Title CO2 LASER POWER OPTIMIZATION OF PHOTOACOUSTIC SPECTROMETER AND IT’S APPLICATION TO DETECT AMMONIA GAS (NH 3 ) CONCENTRATION ON ISOTONIC BEVERAGE CONSUMER’S BREATH
 
Creator Annawati, Bergitta Dwi
Mitrayana, Mitrayana
 
Subject
 
Description Performance of photoacoustic spectrometer CO2 laser can be optimized by variation of laser voltage with active laser medium gas compositions include gases He, N2 and CO2. Characterization of photoacoustic spectrometer CO2 laser is done by determined resonance curve, quality factor, noise and lowest detection limit. Photoacoustic spectrometer applied to detect ammonia gas concentration in isotonic beverage. Photoacoustic spectrometer was applied to detect the concentration of ammonia in the isotonic drinks and measuring result using multicomponent-analysis. The lowest detection limit for ammonia gas on line 10R14 obtained at (70 ± 7)
ppb with highest laser power obtained at (37 ± 0.1) W and the composition of the active medium gas He, N2 and CO2 30:40:30. The highest concentration of ammonia gas, 0 minute in range of (2.89 ± 0.05) ppm, 30 minutes in range of (4.22 ± 0.05), 60 minutes in range of (5.34 ± 0.05), 120 minutes in range of (5.49 ± 0.05) ppm, 150 minutes in range of (3.62 ± 0.05) ppm and 180 minutes in range of (3.28 ± 0.05) ppm. Changes concentration of ammonia gas result are influenced by the length of time after consuming isotonic beverage.
 
Publisher Widya Mandala Catholic University
 
Contributor
 
Date 2020-03-01
 
Type info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion

 
Format application/pdf
 
Identifier http://journal.wima.ac.id/index.php/Magister_Scientiae/article/view/2442
10.33508/mgs.v1i47.2442
 
Source Magister Scientiae; No 47 (2020); 13-23
2622-7959
0852-078X
10.33508/mgs.v1i47
 
Language eng
 
Relation http://journal.wima.ac.id/index.php/Magister_Scientiae/article/view/2442/2102
 
Rights Copyright (c) 2020 Magister Scientiae
 

Contact Us

The PKP Index is an initiative of the Public Knowledge Project.

For PKP Publishing Services please use the PKP|PS contact form.

For support with PKP software we encourage users to consult our wiki for documentation and search our support forums.

For any other correspondence feel free to contact us using the PKP contact form.

Find Us

Twitter

Copyright © 2015-2018 Simon Fraser University Library