TY - JOUR
T1 - Absorption Spectra of Ethanol and Water Using a Photothermal Lens Spectrophotometer
AU - Cabrera, Humberto
AU - Akbar, Jehan
AU - Korte, Dorota
AU - Ashraf, Imrana
AU - Ramírez-Miquet, Evelio E.
AU - Marín, Ernesto
AU - Niemela, Joseph
N1 - Publisher Copyright:
© 2018, The Author(s) 2018.
PY - 2018/7/1
Y1 - 2018/7/1
N2 - In this work we report on the absorption spectra of ethanol and water in the region 430–700 nm using a homemade halogen lamp-based photothermal lens spectrophotometer with a multipass probe-beam configuration. The spectra also include well resolved, higher absorption overtones. The instrument achieves high sensitivity due to multiple reflections within the optical cavity containing the sample. Finally, an Arduino board was used for collecting and digitizing the signal, thus enabling a more compact device.
AB - In this work we report on the absorption spectra of ethanol and water in the region 430–700 nm using a homemade halogen lamp-based photothermal lens spectrophotometer with a multipass probe-beam configuration. The spectra also include well resolved, higher absorption overtones. The instrument achieves high sensitivity due to multiple reflections within the optical cavity containing the sample. Finally, an Arduino board was used for collecting and digitizing the signal, thus enabling a more compact device.
KW - TLS
KW - Thermal lens spectrometry
KW - absorption of ethanol
KW - absorption of water
KW - vibration overtones
UR - http://www.scopus.com/inward/record.url?scp=85049018148&partnerID=8YFLogxK
U2 - 10.1177/0003702818759073
DO - 10.1177/0003702818759073
M3 - Artículo
C2 - 29381092
SN - 0003-7028
VL - 72
SP - 1069
EP - 1073
JO - Applied Spectroscopy
JF - Applied Spectroscopy
IS - 7
ER -