OPTIMASI DAYA LASER PADA SPEKTROMETER FOTOAKUSTIK LASER CO2 KONFIGURASI INTRAKAVITAS DAN APLIKASINYA DALAM MENGUKUR KONSENTRASI GAS ASETON PADA GAS HEMBUS NAPAS PASIEN PENDERITA DIABETES MELLITUS TIPE 2
| Main Authors: | , Ananta Kusuma Yoga Pratama, , Dr. Mitrayana |
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| Format: | Thesis NonPeerReviewed |
| Terbitan: |
[Yogyakarta] : Universitas Gadjah Mada
, 2013
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| Subjects: | |
| Online Access: |
https://repository.ugm.ac.id/128132/ http://etd.ugm.ac.id/index.php?mod=penelitian_detail&sub=PenelitianDetail&act=view&typ=html&buku_id=68464 |
Daftar Isi:
- The laser power optimization of CO2 laser photoacoustic spectrometer intracavity configuration has been conducted. It was generated 4 laser group and highest power was obtained at 53,1±0,1 W with medium active gas composition He:N2:CO2 was 48:64:80. The highest laser absorption line of standard acetone gas was determined at 9P32 and lowest detection limit was obtained at 2,2±0,04 ppb. Furthermore, photoacoustic spectrometer was used to measure gas concentration of acetone in breath sample of type 2 diabetes mellitus patient volunteers and healthy volunteers as control which each of volunteers amount 10 person. The lowest aceton concentration for patient with type 2 diabetes mellitus was 540±6 ppb and the highest concentration was 1050±8 ppb. For healthy volunteers, the highest aceton concentration was 520±6 ppb.