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citrate bicarbonate-dithionite method

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Journal Article

IRON-OXIDE MINERALOGY OF A MOLLISOL FROM ARGENTINA: A STUDY BY SELECTIVE-DISSOLUTION TECHNIQUES, X-RAY DIFFRACTION, AND MÖSSBAUER SPECTROSCOPY Available to Purchase

Silvia G. Acebal, Ana Mijovilovich, Elsa H. Rueda, María E. Aguirre, Celia Saragovi
Published: 01 June 2000
Clays and Clay Minerals (2000) 48 (3): 322–330.
...Silvia G. Acebal; Ana Mijovilovich; Elsa H. Rueda; María E. Aguirre; Celia Saragovi Abstract Selective-dissolution techniques by ammonium oxalate (OX), dithionite-citrate-bicarbonate (DCB), and dithionite-ethylenediaminetetraacetic acid (D-EDTA), and X-ray diffraction and Mössbauer spectroscopy...
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View PDF for article title, IRON-OXIDE MINERALOGY OF A MOLLISOL FROM ARGENTINA: A STUDY BY SELECTIVE-DISSOLUTION TECHNIQUES, X-RAY DIFFRACTION, AND MÖSSBAUER SPECTROSCOPY
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Journal Article

Methods for handling redox-sensitive smectite dispersions Available to Purchase

J. W. Stucki, K. Su, L. Pentráková, M. Pentrák
Journal: Clay Minerals
Published: 01 June 2014
Clay Minerals (2014) 49 (3): 359–377.
DOI: https://doi.org/10.1180/claymin.2014.049.3.02
... use and labelled Na-SWa-1 (Stage 0, Fig. 1 ). All chemicals used were analytical-reagent grade, except sodium dithionite which was technical grade. The supplier of all chemicals was Thermo-Fisher Scientific (Pittsburgh, Pennsylvania). Citrate-bicarbonate (C-B) buffer solution was prepared...
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View PDF for article title, <span class="search-highlight">Methods</span> for handling redox-sensitive smectite dispersions
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Journal Article

Linking the redox cycles of Fe oxides and Fe-rich clay minerals: an example from a palaeosol of the Upper Freshwater Molasse Available to Purchase

H. STANJEK, C. MARCHEL
Journal: Clay Minerals
Published: 01 March 2008
Clay Minerals (2008) 43 (1): 69–82.
DOI: https://doi.org/10.1180/claymin.2008.043.1.05
...H. STANJEK; C. MARCHEL Abstract A profile within the Upper Freshwater Molasse (OSM) of eastern Switzerland was sampled. Particle-size analyses, bulk chemical analyses, cation exchange capacities and Fe fractions (oxalate- and dithionite-citrate-bicarbonate-soluble Fe, total Fe) were measured...
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View PDF for article title, Linking the redox cycles of Fe oxides and Fe-rich clay minerals: an example from a palaeosol of the Upper Freshwater Molasse
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Journal Article

MINERALOGICAL CHARACTERISTICS AND MICROMORPHOLOGICAL OBSERVATIONS OF BRITTLE/SOFT Fe/Mn CONCRETIONS FROM OKINAWAN SOILS Available to Purchase

L. P. Vidhana Arachchi, Y. Tokashiki, S. Baba
Published: 01 August 2004
Clays and Clay Minerals (2004) 52 (4): 462–472.
DOI: https://doi.org/10.1346/CCMN.2004.0520407
... Island, Japan. The Fe/Mn minerals in brittle/soft Fe/Mn concretions were characterized using a sequential selective dissolution procedure (SSDP) by treatments with NaOH, hydroxylamine hydrochloride (HAHC) at 25°C and 60°C, and dithionite-citrate-bicarbonate (DCB) in combination with X-ray diffraction...
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View PDF for article title, MINERALOGICAL CHARACTERISTICS AND MICROMORPHOLOGICAL OBSERVATIONS OF BRITTLE/SOFT Fe/Mn CONCRETIONS FROM OKINAWAN SOILS
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Journal Article

Reduction of Fe(III) in griffithite Available to Purchase

P. KOMADEL, J. MADEJOVÁ, D. A. LAIRD, Y. XIA, J. W. STUCKI
Journal: Clay Minerals
Published: 01 September 2000
Clay Minerals (2000) 35 (4): 625–634.
... in laboratory investigations to reduce Fe(III) in dioctahedral smectites (see recent reviews by Stucki et al. , 1996 , and Ernstsen et al. , 1998 ). The most effective chemical reduction method, leading to >90% reduction of Fe(III) to Fe(II) in nontronites, is the citrate-bicarbonate-dithionite (CBD...
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Journal Article

Association between phosphorus and iron oxides in manganese ores Available to Purchase

Geraldo Magela da Costa, Larissa Ribeiro Herzog
Published: 01 January 2011
American Mineralogist (2011) 96 (1): 68–73.
DOI: https://doi.org/10.2138/am.2011.3585
... elements and a particular mineralogical phase is the use of selective dissolution methods. For iron, the well-known dithionite-citrate-bicarbonate method is routinely used for the removal of amorphous and crystalline phases ( Mehra and Jackson 1960 ; Torrent et al. 1987 ; Varadachari et al. 2006...
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Journal Article

Extracting the Silicate Mineral Fraction from Ancient Carbonate: Assessing the Geologic Record of Dust Available to Purchase

Sohini Sur, Michael J. Soreghan, Gerilyn S. Soreghan, Alice F. Stagner
Published: 01 August 2010
Journal of Sedimentary Research (2010) 80 (8): 763–769.
DOI: https://doi.org/10.2110/jsr.2010.068
...) this process also oxidized most of the disseminated diagenetic pyrite to iron oxide ( Fig. 2B, D ), which enabled their subsequent dissolution using the citrate–bicarbonate–dithionite (CBD) method, originally described by Mehra and Jackson (1960) and later modified by Rea and Janecek (1981) . Alternatively...
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View PDF for article title, Extracting the Silicate Mineral Fraction from Ancient Carbonate: Assessing the Geologic Record of Dust
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Journal Article

CHROMATE REMOVAL BY DITHIONITE-REDUCED CLAYS: EVIDENCE FROM DIRECT X-RAY ADSORPTION NEAR EDGE SPECTROSCOPY (XANES) OF CHROMATE REDUCTION AT CLAY SURFACES Available to Purchase

Robert W. Taylor, Siyuan Shen, William F. Bleam, Shu-I Tu
Published: 01 December 2000
Clays and Clay Minerals (2000) 48 (6): 648–654.
... deionized water and 20 mL potassium citrate-bicarbonate (C-B) buffer (8 parts by volume of 0.3 M potassium citrate, K 3 C 6 H 5 O 7 ·2H 2 O and 1 part of 1 M potassium bicarbonate, KHCO 3 ). The chromate anions, CrO 4 2− or Cr 2 O 7 2− rarely adsorb on negatively charged clay surfaces...
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View PDF for article title, CHROMATE REMOVAL BY <span class="search-highlight">DITHIONITE</span>-REDUCED CLAYS: EVIDENCE FROM DIRECT X-RAY ADSORPTION NEAR EDGE SPECTROSCOPY (XANES) OF CHROMATE REDUCTION AT CLAY SURFACES
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Journal Article

Characterization of citric acid induced transformation of short-range-order minerals in Alfisol, Inceptisol and Vertisol of India Available to Purchase

Chatterjee Dibyendu, Samar C. Datta, Kanchikeri M. Manjaiah
Published: 01 August 2015
European Journal of Mineralogy (2015) 27 (4): 551–557.
DOI: https://doi.org/10.1127/ejm/2015/0027-2446
.... The percent sand, silt and clay contents were determined by the hydrometer method (Bouyoucous, 1951). The clays (<2 µm) were isolated by removing organic matter, sesquioxides and free cations by treating with H 2 O 2 ( Kunze, 1965 ), dithionite-citrate-bicarbonate (DCB, Mehra & Jackson, 1960...
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View PDF for article title, Characterization of citric acid induced transformation of short-range-order minerals in Alfisol, Inceptisol and Vertisol of India
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Journal Article

Layer charges of vermiculites in two forest Inceptisols in northern Taiwan Available to Purchase

C. W. PAI, M. K. WANG, H. B. KING, J.-L. HWONG
Journal: Clay Minerals
Published: 01 June 2006
Clay Minerals (2006) 41 (2): 587–596.
DOI: https://doi.org/10.1180/0009855064120207
... was determined by dichromate oxidation ( Nelson & Sommers, 1982 ). Cation-exchange capacity was determined by the NH 4 /Na exchange method ( Rhoades, 1982 ). Dithionite-citrate-bicarbonate Fe (Fe d ) was extracted by dithionite-citrate-bicarbonate ( Mehra and Jackson, 1960 ). Amorphous Fe (Fe o ) and Al (Al...
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View PDF for article title, Layer charges of vermiculites in two forest Inceptisols in northern Taiwan
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Journal Article

Trace Metals in Ferromanganese Nodules and Host Sediments of the Indian Ocean Available to Purchase

Swapan K. Ghosh
Published: 01 July 1988
Jour. Geol. Soc. India (1988) 32 (1): 40–47.
DOI: https://doi.org/10.17491/jgsi/1988/320104
... He!. Stage 5: Na Citrate-bicarbonate-dithionite treatment: The sample recovered after stage 4 was treated, after its weight was noted, with 20 ml of 0.33 M Na citrate and 2.5 ml of 1 M NaHC03 and heated to 75C:C. Two portions of 0.5 g of Na· dithionite were added at 5-minute intervals. This treatment...
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Journal Article

Nanogoethite is the dominant reactive oxyhydroxide phase in lake and marine sediments Available to Purchase

Claar van der Zee, Darryl R. Roberts, Denis G. Rancourt, Caroline P. Slomp
Journal: Geology
Published: 01 November 2003
Geology (2003) 31 (11): 993–996.
DOI: https://doi.org/10.1130/G19924.1
... modeled as arising entirely from static hyperfine field distributions (HFDs), to extract practical, operationally defined, characteristic spectral parameters. That the reactive citrate-dithionite-bicarbonate (CDB)–extractable Fe (where CDB should extract all free oxides except magnetite...
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Journal Article

Anion Exchange in Saprolite Available to Purchase

K. A. McVay, D. E. Radcliffe, L. T. West, M. L. Cabrera
Published: 01 May 2004
Vadose Zone Journal (2004) 3 (2): 668–675.
DOI: https://doi.org/10.2113/3.2.668
... adsorption in saprolite. AEC, anion exchange capacity BTCs, breakthrough curves CV, coefficient of variation DCB, dithionite–citrate–bicarbonate * Corresponding author ( [email protected] ). 2 7 2003 Soil Science Society of America 2004 Chemical analysis of samples of a thick...
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Journal Article

FOUGERITE, A NEW MINERAL OF THE PYROAURITE-IOWAITE GROUP: DESCRIPTION AND CRYSTAL STRUCTURE Available to Purchase

Fabienne Trolard, Guilhem Bourrié, Mustapha Abdelmoula, Philippe Refait, Frédéric Feder
Published: 01 June 2007
Clays and Clay Minerals (2007) 55 (3): 323–334.
DOI: https://doi.org/10.1346/CCMN.2007.0550308
... contribution. Selective chemical extractions by dithionite-citrate-bicarbonate (DCB) and citrate-bicarbonate (CB) reagents showed that Mg was released proportionally to Fe. The structural constraint that every Fe 3+ must be surrounded by 6 bivalent cations, either Fe 2+ or Mg 2+ , led to the inequality...
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View PDF for article title, FOUGERITE, A NEW MINERAL OF THE PYROAURITE-IOWAITE GROUP: DESCRIPTION AND CRYSTAL STRUCTURE
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Journal Article

Comparison of Pretreatment Methods for Organic-matter Removal and their Effects on the Hydrogen Isotope (δ 2 H) Composition of Kaolinite Available to Purchase

Arpita Samanta, M. K. Bera, Sruthi P. Sreenivasan, Anindya Sarkar
Published: 01 December 2022
Clays and Clay Minerals (2022) 70 (6): 837–849.
DOI: https://doi.org/10.1007/s42860-023-00221-z
...), citrate-bicarbonate-dithionite (trisodium citrate [> 99%, Merck, India], NaHCO 3 [Merck, India, EMPLURA® grade], and sodium dithionite [purified, > 85%, Lobachemie, India], following Mehra & Jackson, 1960 ), and H 2 O 2 (30%; Merck, India, EMPLURA®ISO grade) with repeated rinsing...
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View PDF for article title, Comparison of Pretreatment <span class="search-highlight">Methods</span> for Organic-matter Removal and their Effects on the Hydrogen Isotope (δ 2 H) Composition of Kaolinite
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Journal Article

DETECTING CHLORITE IN THE CHINESE LOESS SEQUENCE BY DIFFUSE REFLECTANCE SPECTROSCOPY Available to Purchase

Junfeng Ji, Liang Zhao, William Balsam, Jun Chen, Tao Wu, Lianwen Liu
Published: 01 April 2006
Clays and Clay Minerals (2006) 54 (2): 266–273.
DOI: https://doi.org/10.1346/CCMN.2006.0540211
... to dissolve the carbonates in samples. Then we used the citrate-bicarbonate-dithionite (CBD) method ( Mehra and Jackson, 1960 ) to eliminate the free Fe oxides. Samples were extracted twice with Na dithionite in a hot (75°C) Na citrate and Na bicarbonate solution to ensure complete removal of pedogenic Fe...
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View PDF for article title, DETECTING CHLORITE IN THE CHINESE LOESS SEQUENCE BY DIFFUSE REFLECTANCE SPECTROSCOPY
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Journal Article

Terra rossa as the substrate for biological phosphate removal from wastewater Available to Purchase

G. Durn, J. Hrenovic, L. Sekovanic
Journal: Clay Minerals
Published: 01 December 2013
Clay Minerals (2013) 48 (5): 725–738.
DOI: https://doi.org/10.1180/claymin.2013.048.5.05
... with values reported by Boero & Schwertmann ( 1989 ). The mean values of Fe t (total iron), Fe d (iron extractable with Na dithionite-citrate bicarbonate, i.e. iron extracted from all Fe oxides) and Fe o (iron extractable with ammonium oxalate, i.e. iron extracted only from poorly crystalline Fe oxides...
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RAPID AND QUANTITATIVE MEASUREMENT OF HEMATITE AND GOETHITE IN THE CHINESE LOESS-PALEOSOL SEQUENCE BY DIFFUSE REFLECTANCE SPECTROSCOPY Available to Purchase

Junfeng Ji, William Balsam, Jun Chen, Lianwen Liu
Published: 01 April 2002
Clays and Clay Minerals (2002) 50 (2): 208–216.
... studied mainly by magnetic measurement and Mössbauer analysis in combination with citrate-bicarbonate-dithionite (CBD) treatment ( Heller et al. , 1993 ; Verosub et al. , 1993 ; Heller and Evans, 1995 ; Fine et al. , 1995 ; Liu et al. , 1999 ; Vidic et al. , 2000 ). This lack of information...
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View PDF for article title, RAPID AND QUANTITATIVE MEASUREMENT OF HEMATITE AND GOETHITE IN THE CHINESE LOESS-PALEOSOL SEQUENCE BY DIFFUSE REFLECTANCE SPECTROSCOPY
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Journal Article

ADSORPTION OF Cs + AND IO 3 − IONS BY PSEUDOBOEHMITE BEFORE AND AFTER THE DECOMPOSITION OF CITRATE ADSORBED ON ITS SURFACE Available to Purchase

Motoharu Kawano, Eri Yamada
Published: 01 August 2018
Clays and Clay Minerals (2018) 66 (4): 370–378.
DOI: https://doi.org/10.1346/CCMN.2018.064105
... and Fein, 1996 ; Hidber et al. , 1996 ; Sparks, 2003 ). In addition, surface complexation between citrate and mineral surfaces occurs during chemical treatments using citrate, such as in the selective dissolution of amorphous iron contaminants using the dithionite-citrate-bicarbonate (DCB) method...
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View PDF for article title, ADSORPTION OF Cs + AND IO 3 − IONS BY PSEUDOBOEHMITE BEFORE AND AFTER THE DECOMPOSITION OF <span class="search-highlight">CITRATE</span> ADSORBED ON ITS SURFACE
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Journal Article

Selenium(IV) and (VI) Sorption by Soils Surrounding Fly Ash Management Facilities Available to Purchase

Seunghun Hyun, Perre E. Burns, Ishwar Murarka, Linda S. Lee
Published: 01 November 2006
Vadose Zone Journal (2006) 5 (4): 1110–1118.
DOI: https://doi.org/10.2136/vzj2005.0140
... as well as pH on both Se(IV) and Se(VI) was quantified for a subset of soils. For both Se(IV) and Se(VI), pH combined with either percentage clay or dithionite-citrate-bicarbonate (DCB)-extractable Fe described >80% of the differences in sorption across all soils, yielding an easy approach for making...
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View PDF for article title, Selenium(IV) and (VI) Sorption by Soils Surrounding Fly Ash Management Facilities
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