Iron fractionation for corrosion products from natural gas pipelines by continuous-flow sequential extraction

Nattikarn Kaewkhomdee; Chatvalee Kalambaheti; Somrudee Predapitakkun; Atitaya Siripinyanond; Juwadee Shiowatana

doi:10.1007/s00216-006-0633-9

Iron fractionation for corrosion products from natural gas pipelines by continuous-flow sequential extraction

Nattikarn Kaewkhomdee
, Chatvalee Kalambaheti
, Somrudee Predapitakkun
, Atitaya Siripinyanond
, Juwadee Shiowatana

Mahidol University
PTT Public Company Limited

Research output: Contribution to journal › Article › peer-review

4 Citations (Scopus)

Abstract

The forms and quantities of iron species in corrosion product samples from natural gas pipelines were examined, using a continuous-flow sequential extraction system. Sequential extraction consists of four steps that dissolve water soluble iron (FeSO₄), acid soluble iron (FeCO₃), reducible iron (Fe-(oxyhydr)oxides) and oxidisable iron (FeS₂) fractions, respectively. Selectivity of extracting reagents for particular iron species was evaluated by determination of co-extracted anions, using ion chromatography, and evolved CO₂, using indirect flame atomic absorption spectrometer (FAAS). Iron was found predominantly in the reducible fraction (61-99%), indicating that Fe-(oxyhydr)oxides are the major constituents of the corrosion products.

Original language	English
Pages (from-to)	363-369
Number of pages	7
Journal	Analytical and Bioanalytical Chemistry
Volume	386
Issue number	2
DOIs	https://doi.org/10.1007/s00216-006-0633-9
Publication status	Published - Oct 2006
Externally published	Yes

Keywords

Corrosion product
Iron fractionation
Sequential extraction

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10.1007/s00216-006-0633-9

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abstract = "The forms and quantities of iron species in corrosion product samples from natural gas pipelines were examined, using a continuous-flow sequential extraction system. Sequential extraction consists of four steps that dissolve water soluble iron (FeSO4), acid soluble iron (FeCO3), reducible iron (Fe-(oxyhydr)oxides) and oxidisable iron (FeS2) fractions, respectively. Selectivity of extracting reagents for particular iron species was evaluated by determination of co-extracted anions, using ion chromatography, and evolved CO2, using indirect flame atomic absorption spectrometer (FAAS). Iron was found predominantly in the reducible fraction (61-99\%), indicating that Fe-(oxyhydr)oxides are the major constituents of the corrosion products.",

keywords = "Corrosion product, Iron fractionation, Sequential extraction",

author = "Nattikarn Kaewkhomdee and Chatvalee Kalambaheti and Somrudee Predapitakkun and Atitaya Siripinyanond and Juwadee Shiowatana",

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T1 - Iron fractionation for corrosion products from natural gas pipelines by continuous-flow sequential extraction

AU - Kaewkhomdee, Nattikarn

AU - Kalambaheti, Chatvalee

AU - Predapitakkun, Somrudee

AU - Siripinyanond, Atitaya

AU - Shiowatana, Juwadee

PY - 2006/10

Y1 - 2006/10

N2 - The forms and quantities of iron species in corrosion product samples from natural gas pipelines were examined, using a continuous-flow sequential extraction system. Sequential extraction consists of four steps that dissolve water soluble iron (FeSO4), acid soluble iron (FeCO3), reducible iron (Fe-(oxyhydr)oxides) and oxidisable iron (FeS2) fractions, respectively. Selectivity of extracting reagents for particular iron species was evaluated by determination of co-extracted anions, using ion chromatography, and evolved CO2, using indirect flame atomic absorption spectrometer (FAAS). Iron was found predominantly in the reducible fraction (61-99%), indicating that Fe-(oxyhydr)oxides are the major constituents of the corrosion products.

AB - The forms and quantities of iron species in corrosion product samples from natural gas pipelines were examined, using a continuous-flow sequential extraction system. Sequential extraction consists of four steps that dissolve water soluble iron (FeSO4), acid soluble iron (FeCO3), reducible iron (Fe-(oxyhydr)oxides) and oxidisable iron (FeS2) fractions, respectively. Selectivity of extracting reagents for particular iron species was evaluated by determination of co-extracted anions, using ion chromatography, and evolved CO2, using indirect flame atomic absorption spectrometer (FAAS). Iron was found predominantly in the reducible fraction (61-99%), indicating that Fe-(oxyhydr)oxides are the major constituents of the corrosion products.

KW - Corrosion product

KW - Iron fractionation

KW - Sequential extraction

UR - https://www.scopus.com/pages/publications/33748313166

U2 - 10.1007/s00216-006-0633-9

DO - 10.1007/s00216-006-0633-9

M3 - Article

AN - SCOPUS:33748313166

SN - 1618-2642

VL - 386

SP - 363

EP - 369

JO - Analytical and Bioanalytical Chemistry

JF - Analytical and Bioanalytical Chemistry

IS - 2

ER -

Iron fractionation for corrosion products from natural gas pipelines by continuous-flow sequential extraction

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Keywords

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