Near-infrared microscope technique for obtaining quantitative and qualitative aqueous surfactant phase-diagram information from a single sample preparation

Curtis A. Marcott; Richard L. Munyon; Robert G. Laughlin

doi:10.1117/12.56494

1 March 1992 Near-infrared microscope technique for obtaining quantitative and qualitative aqueous surfactant phase-diagram information from a single sample preparation

Curtis A. Marcott, Richard L. Munyon, Robert G. Laughlin

Author Affiliations +

Proceedings Volume 1575, 8th Intl Conf on Fourier Transform Spectroscopy; (1992) https://doi.org/10.1117/12.56494
Event: Eighth International Conference on Fourier Transform Spectroscopy, 1991, Lubeck-Travemunde, Germany

Abstract

A technique for studying the phase behavior of aqueous surfactant systems using near-infrared (NIR) microspectroscopy has been developed. All the phases which exist along a particular isotherm are formed by creating an interface between water and surfactant within a long (55 mm) 25-micrometers pathlength fused silica cell, and allowing the components to diffuse together. The temperature of the cell is controlled to within 0.1 degree(s)C between 25 and 85 degree(s)C. Analysis of the entire composition range is achieved using a Fourier transform infrared (FT- IR) spectrometer equipped with a CaF2 beam splitter, a tungsten-halogen source, and an infrared microscope with a InSb detector. The intensity of the water bend-stretch combination band at 5175 cm-1 is shown to be useful for quantitation. A study of the octyldimethylphosphine oxide/water system illustrates the quantitative potential of this technique.

Citation Download Citation

Curtis A. Marcott, Richard L. Munyon, and Robert G. Laughlin "Near-infrared microscope technique for obtaining quantitative and qualitative aqueous surfactant phase-diagram information from a single sample preparation", Proc. SPIE 1575, 8th Intl Conf on Fourier Transform Spectroscopy, (1 March 1992); https://doi.org/10.1117/12.56494

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available

Members: $17.00

Non-members: $21.00 ADD TO CART

PROCEEDINGS
2 PAGES

DOWNLOAD PAPER SAVE TO MY LIBRARY

GET CITATION

RIGHTS & PERMISSIONS

Get copyright permission Get copyright permission on Copyright Marketplace

KEYWORDS

Microscopes

Water

FT-IR spectroscopy

Binary data

Infrared radiation

Infrared spectroscopy

Refractive index

Show All Keywords

Keywords/Phrases

Search In:

Publication Years