The Use of Flow-Injection Analysis with Chemiluminescence Detection of Aqueous Ferrous Iron in Waters Containing High Concentrations of Organic Compounds

doi:10.3390/s90604390

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Sensors 2009, 9(6), 4390-4406; doi:10.3390/s90604390

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The Use of Flow-Injection Analysis with Chemiluminescence Detection of Aqueous Ferrous Iron in Waters Containing High Concentrations of Organic Compounds

Christopher J. Borman^1,* , B. Patrick Sullivan¹, Carrick M. Eggleston² and Patricia J. S. Colberg³

¹ Department of Chemistry, University of Wyoming, Dept 3838, 1000 E. University Avenue, Laramie, Wyoming 82071, USA ² Department of Geology and Geophysics, University of Wyoming, Dept 3006, 1000 E. University Avenue, Laramie, Wyoming 82071, USA ³ Department of Civil and Architectural Engineering, University of Wyoming, Dept 3295, 1000 E. University Avenue, Laramie, Wyoming 82071, USA

* Author to whom correspondence should be addressed.

Received: 7 April 2009; in revised form: 1 June 2009 / Accepted: 3 June 2009 / Published: 4 June 2009

(This article belongs to the Section Chemical Sensors)

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Abstract: An evaluation of flow-injection analysis with chemiluminescence detection (FIA-CL) to quantify Fe²⁺_(aq) in freshwaters was performed. Iron-coordinating and/or iron-reducing compounds, dissolved organic matter (DOM), and samples from two natural water systems were used to amend standard solutions of Fe²⁺_(aq). Slopes of the response curves from ferrous iron standards (1 – 100 nM) were compared to the response curves of iron standards containing the amendments. Results suggest that FIA-CL is not suitable for systems containing ascorbate, hydroxylamine, cysteine or DOM. Little or no change in sensitivity occurred in solutions of oxalate and glycine or in natural waters with little organic matter.

Keywords: flow-injection analysis; chemiluminescence; ferrous iron determination; iron oxide dissolution; luminol; Felume

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MDPI and ACS Style

Borman, C.J.; Sullivan, B.P.; Eggleston, C.M.; Colberg, P.J.S. The Use of Flow-Injection Analysis with Chemiluminescence Detection of Aqueous Ferrous Iron in Waters Containing High Concentrations of Organic Compounds. Sensors 2009, 9, 4390-4406.

AMA Style

Borman C.J., Sullivan B.P., Eggleston C.M., Colberg P.J.S. The Use of Flow-Injection Analysis with Chemiluminescence Detection of Aqueous Ferrous Iron in Waters Containing High Concentrations of Organic Compounds. Sensors. 2009; 9(6):4390-4406.

Chicago/Turabian Style

Borman, Christopher J.; Sullivan, B. Patrick; Eggleston, Carrick M.; Colberg, Patricia J.S. 2009. "The Use of Flow-Injection Analysis with Chemiluminescence Detection of Aqueous Ferrous Iron in Waters Containing High Concentrations of Organic Compounds." Sensors 9, no. 6: 4390-4406.

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