A simple diffuse reflectance Fourier transform infrared spectroscopic determination of sulfur dioxide in ambient air using potassium tetrachloromercurate as the absorbing reagent.

A simple diffuse reflectance Fourier transform infrared spectroscopic determination of sulfur dioxide in ambient air using potassium tetrachloromercurate as the absorbing reagent. Research Abstract Details 

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A simple diffuse reflectance Fourier transform infrared spectroscopic determination of sulfur dioxide in ambient air using potassium tetrachloromercurate as the absorbing reagent. Abstract Text:

Santosh Kumar Verma,Manas Kanti Deb,Samir Bajpai,Yukio Suzuki,Shekhar Kumar Sinha,Yuan Gong,

This paper presents development of a simple, rapid, and precise analytical method for determination of sulfur dioxide in ambient air by a gas to solid-phase conversion method. Sulfur dioxide is determined in the form of sulfite (SO3(2-)) because the absorbing reagent, potassium tetrachloromercurate (TCM), used in this method absorbs sulfur dioxide from the atmosphere in the form of sulfite. Determination of submicrogram levels of sulfur dioxide was based on the selection of a quantitative analytical peak at 495 cm(-1) among the 3 observed vibrational peaks for the dichlorosulfitomercurate complex formed after reaction of sulfur dioxide with TCM and measurement of absorbance using diffuse reflectance Fourier transform infrared spectroscopy. The limits of detection and quantification of the method were found to be 0.09 and 0.4 microg/g SO3(2-), respectively. The precision in terms of standard deviation and relative standard deviation (RSD) at a level of 2 microg SO3(2-)/10.1 g KBr for n = 10 was found to be 0.036 microg SO3(2-) and 1.8%, respectively. The RSD (n = 10) for determination of sulfur dioxide in ambient air was observed to be in the range of 2.7-4.2%. The method proposed is time saving and eliminates the slow and cumbersome steps of pH maintenance of the reaction mixture and color formation of the U.S. Environmental Protection Agency recommended West and Gaeke spectrophotometric method and other methods for quantitative determination of sulfur dioxide.

A simple diffuse reflectance Fourier transform infrared spectroscopic determination of sulfur dioxide in ambient air using potassium tetrachloromercurate as the absorbing reagent. Publishing Authors By Initials

SK Verma,MK Deb,S Bajpai,Y Suzuki,SK Sinha,Y Gong,

For similar inorganic chemicals: gases: sulfur dioxide research abstracts see: inorganic chemicals: gases: sulfur dioxide research

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A simple diffuse reflectance Fourier transform infrared spectroscopic determination of sulfur dioxide in ambient air using potassium tetrachloromercurate as the absorbing reagent. Journal Published:

PUBLICATION TYPE: Research Support, Non-U.S. Gov

Journal: Journal of AOAC International

VOLUME: 90

Page Numbers: 1180-90

Journal Abbreviation:

ISSN: 1060-3271

DAY: 29

MONTH: 11

YEAR: 2007

A simple diffuse reflectance Fourier transform infrared spectroscopic determination of sulfur dioxide in ambient air using potassium tetrachloromercurate as the absorbing reagent. Information

Number of References:

LANGUAGE: eng

NlmUniqueID: 9215446

A simple diffuse reflectance Fourier transform infrared spectroscopic determination of sulfur dioxide in ambient air using potassium tetrachloromercurate as the absorbing reagent. Keywords Mesh Terms:

KEYWORDS: Sulfur Dioxide

MESH TERMS: analysis

Chemical & Substance for Abstract: A simple diffuse reflectance Fourier transform infrared spectroscopic determination of sulfur dioxide in ambient air using potassium tetrachloromercurate as the absorbing reagent. Information

Substance Name: potassium tetraiodomercurate

Registry Number: 7783-33-7

Grant and Affiliation Information for A simple diffuse reflectance Fourier transform infrared spectroscopic determination of sulfur dioxide in ambient air using potassium tetrachloromercurate as the absorbing reagent.

AFFILIATION: Pt. Ravishankar Shukla University, School of Studies in Chemistry, Raipur-492 010, Chhattisgarh, India.

Country: United States

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MEDLINETA: J AOAC Int

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