Published April 2012 | Version v1
Journal article Metadata-only

Quantitative analysis for monitoring formulation of lubricating oil using terahertz time-domain transmission spectroscopy

Creators

  • 1. Laboratory of Optic Sensing and Detecting Technology, China University of Petroleum, Beijing (China)
  • 2. State Key Laboratory of Heavy Oil Processing, China University of Petroleum, Beijing (China)
  • 3. International Center for Materials Physics, Chinese Academy of Sciences, Shenyang (China)
  • 4. Beijing Key Laboratory for Terahertz Spectroscopy and Imaging, Key Laboratory of Terahertz Optoelectronics (Ministry of Education), Department of Physics, Capital Normal University, Beijing (China)

Description

The quantitative analysis of zinc isopropyl-isooctyl-dithiophosphate (T204) mixed with lube base oil from Korea with viscosity index 70 (T204-Korea70) is presented by using terahertz time-domain spectroscopy (THz-TDS). Compared with the middle-infrared spectra of zinc n-butyl-isooctyl-dithiophosphate (T202) and T204, THz spectra of T202 and T204 show the weak broad absorption bands. Then, the absorption coefficients of the T204-Korea70 system follow Beer's law at the concentration from 0.124 to 4.024%. The experimental absorption spectra of T204-Korea70 agree with the calculated ones based on the standard absorption coefficients of T204 and Korea70. The quantitative analysis enables a strategy to monitor the formulation of lubricating oil in real time. (authors)

Additional details

Identifiers

DOI
10.1088/0256-307X/29/4/043901;

Publishing Information

Journal Title
Chinese Physics Letters
Journal Volume
29
Journal Issue
4
Journal Page Range
[3 p.]
ISSN
0256-307X

INIS

Country of Publication
China
Country of Input or Organization
China
INIS RN
51120357
Subject category
S74: ATOMIC AND MOLECULAR PHYSICS;
Descriptors DEI
ABSORPTION; ABSORPTION SPECTRA; COMPARATIVE EVALUATIONS; CONCENTRATION RATIO; INFRARED SPECTRA; LUBRICATING OILS; MONITORING; MONITORS; SPECTROSCOPY; VISCOSITY; ZINC
Descriptors DEC
DIMENSIONLESS NUMBERS; ELEMENTS; EVALUATION; LUBRICANTS; MEASURING INSTRUMENTS; METALS; OILS; ORGANIC COMPOUNDS; OTHER ORGANIC COMPOUNDS; PETROLEUM PRODUCTS; SORPTION; SPECTRA

Optional Information

Notes
3 figs., 22 refs.; http://dx.doi.org/10.1088/0256-307X/29/4/043901