CW oscillation on a new argon ion laser line at 5062 Å and relation to laser Raman spectroscopy

A gallstone from Egypt was examined by laser Raman spectroscopy and identified to be a bilirubin-type stone. The surface of the stone, the subsurface interior, and the center of the stone were irradiated with the 514.5-nm argon-ion laser line. Spectra from the three areas gave similar Raman spectral patterns. Moreover, Raman spectra from the interior of the gallstone were identical to that of bilirubin standard. However, the examination of a Raman spectrum from the outer surface of the stone indicated that it contained cholesterol in addition to bilirubin. Bilirubin has the characteristic line of C=C stretching vibration at 1615 cm−1. Cholesterol has the characteristic line of C(5)=C(6) stretching vibration at 1674 cm−1. Cholesterol also has a strong characteristic line at 1439 cm−1. Therefore, it is quite easy to identify the constituents of gallstone by Raman spectroscopy.

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Quantitative Analysis of Styrene Monomer in Styrene/Butadiene Latexes Using Raman Spectroscopy

Applied Spectroscopy ◽

10.1366/000370276774456787 ◽

1976 ◽

Vol 30 (5) ◽

pp. 542-544 ◽

Cited By ~ 10

Author(s):

Patricia L. Wancheck ◽

Lynn E. Wolfram

Keyword(s):

Raman Spectroscopy ◽

Liquid Chromatography ◽

Quantitative Analysis ◽

Styrene Monomer ◽

Argon Ion Laser ◽

Ion Laser ◽

Styrene Concentration ◽

Styrene Butadiene ◽

Argon Ion ◽

Butadiene Styrene

A simple rapid method has been developed for the quantitative analysis of styrene monomer in butadiene/styrene latexes using Raman spectroscopy. The latex samples were sealed in capillary tubes and scanned under high resolution conditions using a Spex Ramalog 1401 with a Spectra Physics 2 W argon ion laser. The Raman method involves ratioing the olefinic C=C (1632 cm−1) band of styrene monomer to the trans 1:4 C=C (1668 cm−1) band of butadiene in the butadiene/styrene polymer. Typical samples were found to have as low an unreacted styrene concentration as 0.7 wt. %. Reproducibility between samples was found to be within 0.1%. The values of residual styrene obtained by the Raman technique agreed within 0.25% with those obtained by liquid chromatography.

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Suppression of fluorescence interference via wavelength shift-keyed Raman spectroscopy using an argon ion laser and acousto-optic tunable filter

Spectrochimica Acta Part A Molecular and Biomolecular Spectroscopy ◽

10.1016/s1386-1425(98)00015-8 ◽

1998 ◽

Vol 54 (8) ◽

pp. 1041-1047 ◽

Cited By ~ 7

Author(s):

C.M Stellman ◽

F Bucholtz

Keyword(s):

Raman Spectroscopy ◽

Tunable Filter ◽

Wavelength Shift ◽

Argon Ion Laser ◽

Ion Laser ◽

Argon Ion

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Intracavity Laser Raman Spectroscopy Using a Commercial Laser

Applied Spectroscopy ◽

10.1366/000370273774333074 ◽

1973 ◽

Vol 27 (6) ◽

pp. 425-427 ◽

Cited By ~ 10

Author(s):

Roy Scott Hickman ◽

Louis Liang

Keyword(s):

Raman Spectroscopy ◽

Laser Intensity ◽

Laser Line ◽

Laser Raman Spectroscopy ◽

Molecular Scattering ◽

Laser Raman ◽

Intracavity Laser

The modification of a commercial laser for intracavity molecular scattering experiments is discussed. An improvement of almost 100 times in laser intensity is reported. Steps taken to eliminate an undesired secondary laser line produced by the laser because of the increase of laser intensity are presented.

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Fluorescence spectrum of chlorine dioxide induced by the 4765 Å argon-ion laser line

Journal of Molecular Spectroscopy ◽

10.1016/0022-2852(73)90136-7 ◽

1973 ◽

Vol 48 (1) ◽

pp. 72-85 ◽

Cited By ~ 26

Author(s):

R.F. Curl ◽

Koichi Abe ◽

J. Bissinger ◽

C. Bennett ◽

F.K. Tittel

Keyword(s):

Fluorescence Spectrum ◽

Chlorine Dioxide ◽

Laser Line ◽

Argon Ion Laser ◽

Ion Laser ◽

Argon Ion

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An Efficient Intracavity Laser Raman Spectrometer

Applied Spectroscopy ◽

10.1366/000370278774331260 ◽

1978 ◽

Vol 32 (3) ◽

pp. 298-302 ◽

Cited By ~ 7

Author(s):

Michael Hercher ◽

William Mueller ◽

Stanley Klainer ◽

Robert F. Adamowicz ◽

Ronald E. Meyers ◽

...

Keyword(s):

Raman Scattering ◽

Output Power ◽

Laser Power ◽

Scattering Data ◽

Raman Spectrometer ◽

Laser Raman ◽

Argon Ion Laser ◽

Ion Laser ◽

Intracavity Laser ◽

Argon Ion

The design of an optimized intracavity laser Raman spectrometer is described, and representative Raman scattering data are presented. An intracavity laser power of 160 W was attained with an argon ion laser whose normal output power was 1 W.

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