Absorption Spectra of Ethanol and Water Using a Photothermal Lens Spectrophotometer

被引：12

作者：

Cabrera, Humberto ^{[1
]}

Akbar, Jehan ^{[1
,2
]}

Korte, Dorota ^{[3
]}

Ashraf, Imrana ^{[4
]}

Ramirez-Miquet, Evelio E. ^{[5
]}

Marin, Ernesto ^{[6
]}

Niemela, Joseph ^{[1
]}

机构：

[1] Abdus Salam Int Ctr Theoret Phys ICTP, Trieste, Italy

[2] Hazara Univ, Dept Phys, Mansehra, Pakistan

[3] Univ Nova Gorica, Lab Environm & Life Sci, Nova Gorica, Slovenia

[4] Quaid I Azam Univ, Dept Phys, Islamabad, Pakistan

[5] Univ Paris Diderot, Mat & Phenomenes Quant, Sorbonne Paris Cite, Paris, France

[6] Inst Politecn Nacl, Ctr Invest Ciencia Aplicada & Tecnol Avanzada, Mexico City, DF, Mexico

来源：

APPLIED SPECTROSCOPY | 2018年 / 72卷 / 07期

关键词：

Thermal lens spectrometry; TLS; absorption of water; absorption of ethanol; vibration overtones; COEFFICIENTS;

D O I：

10.1177/0003702818759073

中图分类号：

TH7 [仪器、仪表];

学科分类号：

0804 ; 080401 ; 081102 ;

摘要：

In this work we report on the absorption spectra of ethanol and water in the region 430-700nm 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.

引用

页码：1069 / 1073

页数：5

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