Study of geometrical effect of sample cell on nitrite determination

Research output: Contribution to journalArticle

Abstract

The effect of cell geometry was studied for nitrite determination by using absorbance spectroscopy. Two cells with different geometry were used, one was flow injection cell in the form of a cylinder-shaped tube, and the other one was cuvette cell in the form of a tube with square cross section. Samples with varied concentration were formed in colorimetric using greiss reagent method. The maximum absorbance was found to be around 540nm for both methods. For overall comparison, flow injection exhibits higher absorbance, better linearity in the calibration curve and lower error as compared to the cuvette. This is due to the geometry of flow injection that can reduce the reflection and scattering of light. Both cells fall on moderate Savvin's sensitivity with flow injection has been more sensitive that cuvette.

Original languageEnglish
Pages (from-to)1487-1492
Number of pages6
JournalJournal of Optoelectronics and Advanced Materials
Volume16
Issue number11-12
Publication statusPublished - 1 Nov 2014

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nitrites
Nitrites
Geometry
injection
cells
geometry
tubes
Spectroscopy
Calibration
Scattering
linearity
reagents
sensitivity
cross sections
curves
scattering
spectroscopy

Keywords

  • Absorbance
  • Colorimetric
  • Cuvette
  • Flow injection
  • Greiss reagent
  • Nitrite

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Atomic and Molecular Physics, and Optics
  • Electrical and Electronic Engineering

Cite this

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title = "Study of geometrical effect of sample cell on nitrite determination",
abstract = "The effect of cell geometry was studied for nitrite determination by using absorbance spectroscopy. Two cells with different geometry were used, one was flow injection cell in the form of a cylinder-shaped tube, and the other one was cuvette cell in the form of a tube with square cross section. Samples with varied concentration were formed in colorimetric using greiss reagent method. The maximum absorbance was found to be around 540nm for both methods. For overall comparison, flow injection exhibits higher absorbance, better linearity in the calibration curve and lower error as compared to the cuvette. This is due to the geometry of flow injection that can reduce the reflection and scattering of light. Both cells fall on moderate Savvin's sensitivity with flow injection has been more sensitive that cuvette.",
keywords = "Absorbance, Colorimetric, Cuvette, Flow injection, Greiss reagent, Nitrite",
author = "S. Abubakar and Norhana Arsad and {Ab Rahman}, {Mohd Syuhaimi} and Ehsan, {Abang Annuar} and S. Shaari and Rizafizah Othaman",
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T1 - Study of geometrical effect of sample cell on nitrite determination

AU - Abubakar, S.

AU - Arsad, Norhana

AU - Ab Rahman, Mohd Syuhaimi

AU - Ehsan, Abang Annuar

AU - Shaari, S.

AU - Othaman, Rizafizah

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N2 - The effect of cell geometry was studied for nitrite determination by using absorbance spectroscopy. Two cells with different geometry were used, one was flow injection cell in the form of a cylinder-shaped tube, and the other one was cuvette cell in the form of a tube with square cross section. Samples with varied concentration were formed in colorimetric using greiss reagent method. The maximum absorbance was found to be around 540nm for both methods. For overall comparison, flow injection exhibits higher absorbance, better linearity in the calibration curve and lower error as compared to the cuvette. This is due to the geometry of flow injection that can reduce the reflection and scattering of light. Both cells fall on moderate Savvin's sensitivity with flow injection has been more sensitive that cuvette.

AB - The effect of cell geometry was studied for nitrite determination by using absorbance spectroscopy. Two cells with different geometry were used, one was flow injection cell in the form of a cylinder-shaped tube, and the other one was cuvette cell in the form of a tube with square cross section. Samples with varied concentration were formed in colorimetric using greiss reagent method. The maximum absorbance was found to be around 540nm for both methods. For overall comparison, flow injection exhibits higher absorbance, better linearity in the calibration curve and lower error as compared to the cuvette. This is due to the geometry of flow injection that can reduce the reflection and scattering of light. Both cells fall on moderate Savvin's sensitivity with flow injection has been more sensitive that cuvette.

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