Loss on ignition: a qualitative or quantitative method for organic matter and carbonate mineral content in sediments?

Santisteban, Juan I.; López, Rosa María Mediavilla; López-Pamo, Enrique; Dabrio, Cristino J.; Zapata, María Blanca Ruiz; Gil-García, María José; Castaño, Silvino Castaño; Martínez-Alfaro, Pedro E.

doi:10.1023/b:jopl.0000042999.30131.5b

Cited by 344 publications

(166 citation statements)

References 22 publications

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“…For the non-clay minerals, gypsum, goethite, and dolomite are the minerals measured that have relatively high LOI values. Santisteban et al (2004) suggested LOI below 5508C for dolomite was due to the breaking off of inorganic carbon from the dolomite crystalline structure as CO 2 . In addition, a small amount of weight loss, B0.2%, was recorded during LOI analysis at 5508C for quartz and feldspar.…”

Section: Loss On Ignition Results Of Fifteen Reference Mineralsmentioning

confidence: 99%

Soil mineral structural water loss during loss on ignition analyses

Sun¹,

Nelson²,

Chen³

et al. 2009

Can. J. Soil. Sci.

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Sun, H., Nelson, M., Chen, F. and Husch, J. 2009. Soil mineral structural water loss during loss on ignition analyses. Can. J. Soil Sci. 89: 603Á610. Water loss from soil minerals has been known to cause errors in the determination of soil organic matter when the loss on ignition (LOI) method is used. Unfortunately, no known published studies reliably quantify the range of structural water in the soil. To do this, 15 common reference minerals were analyzed by LOI to obtain their individual water loss. In addition, 14 upland, loamy soil samples and 3 wetland/hydric soil samples with varied mineral contents were analyzed to collect their X-ray powder diffraction spectra. Based upon X-ray spectra peak intensities, the modal abundance of minerals in each soil sample was determined using the RockJock computer program. The resultant modal weight percentages of all identified minerals in each soil sample were then multiplied by the LOI value for each mineral to obtain the mineral structural water loss (SWL) of that soil sample. For the 17 soil samples analyzed, the range of mineral water loss is 0.56 to 2.45%. Depending on the LOI values of the soil samples, the SWL:LOI ratios range from 0.04 to around 1.00. The SWL:LOI ratios are particularly low for top wetland soil when the LOI value is higher. The ratios are lower for surface soil samples than for subsurface soil samples because of the high LOI values in surface soil samples. Understanding soil mineral water loss and its relation to the LOI patterns from various environments is important for the accurate evaluation of soil organic matter when the LOI method is used.Key words: Mineral, structural water, loss on ignition Sun, H., Nelson, M., Chen, F. et Husch, J. 2009. Perte structurelle d'eau par les mine´raux du sol lors des analyses de perte par calcination. Can. J. Soil Sci. 89: 603Á610. On sait que l'eau perdue par les mine´raux du sol cause des erreurs lorsqu'on s'efforce de calculer la quantite´de matie`re organique dans le sol par la me´thode d'analyse de perte par calcination (LOI). Malheureusement, aucune des e´tudes publie´es ne quantifie de manie`re fiable la variation de l'eau structurelle dans le sol. Pour y reme´dier, les auteurs ont analyse´15 mine´raux de re´fe´rence communs par la LOI afin d'en mesurer la perte d'eau. Ils ont aussi analyse´14 e´chantillons de sol loameux des plateaux et 3 e´chantillons de sol hydrique des terres humides afin de recueillir le spectre de leur poudre par diffraction des rayons X. En partant de l'intensite´des pics obtenus aux rayons X, ils ont e´tabli l'abondance modale des mine´raux dans chaque e´chantillon graˆce au logiciel RockJock. Les pourcentages modaux ponde´re´s des mine´raux identifie´s dans chaque e´chantillon qui en re´sultent ont ensuite e´te´multiplie´s par la valeur LOI de chaque mine´ral, ce qui a donne´la perte structurelle d'eau (SWL) du mine´ral pour l'e´chantillon. Sur les 17 e´chantillons examine´s, la perte d'eau des mine´raux varie de 0,56 % a`2,45 %. D'apre`s la valeur LOI des e´chantillons, le ...

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Section: Loss On Ignition Results Of Fifteen Reference Mineralsmentioning

confidence: 99%

Soil mineral structural water loss during loss on ignition analyses

Sun¹,

Nelson²,

Chen³

et al. 2009

Can. J. Soil. Sci.

View full text Add to dashboard Cite

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“…The pH of the sediment suspension in water (1:2.5 w/v) was measured. Organic matter (OM, %, w/w) and clay content (%, w/w) were determined by loss on ignition (Santisteban et al, 2004) and hexametaphosphate (Ketter et al, 2001) methods, respectively.…”

Section: Sample Collection and Analysismentioning

confidence: 99%

Trace metal fractionation in water and sediments of an urban river stretch

Kumar

Rani

Gupta

et al. 2014

Chemical Speciation & Bioavailability

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In this study, the fractionation and ecotoxic potential of Cr, Ni, Cu and Pb in water and sediments of the river Yamuna (Delhi stretch) is presented. The river water is used for various purposes such as irrigation, industrial, domestic and drinking. The investigations suggest that the availability of metals in water follows the sequence Ni>Cr>Pb>Cu whereas a different pattern (Pb>Cu>Ni>Cr) is observed in sediments. Statistically significant spatial variations are indicated by two-way ANOVA in different geochemical forms of the metals and physicochemical parameters of water and sediments of the river Yamuna. Principal component analysis (PCA) suggests a similar source for all four metals probably from the sewage from municipal drains. PCA also indicates some independent sources of Cu and Pb. The hot spots were identified using hierarchical cluster analysis considering bioavailable forms of the metals in water and sediments as objects and the sampling sites as variables. Risk assessment code analysis indicates that metals generally pose medium to high risk at different sites. However, at a few locations either Ni or Pb cross the level of very high ecological risk.

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“…The total of percentages of other species was less than 20% in each sample. LOI has been widely used as a method to estimate the amount of organic matter in sediments, and it can be used as a proxy for paleoproductivity (SANTISTEBAN et al 2004). And in the Yangtze floodplain lakes, LOI can be indirectly indicative of lake trophic level (YAO and XUE 2009).…”

Section: Discussion Environmental Factors and Diatom Distributionmentioning

confidence: 99%

Influence of environmental and spatial factors on the distribution of surface sediment diatoms in Chaohu Lake, southeast China

Chen¹,

Yang²,

Dong³

et al. 2012

Acta Botanica Croatica

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-The spatial distribution of surface sediment diatoms in Chaohu Lake (southeast China), and their relationships with environmental and spatial variables were analyzed in this study. The diatom assemblages were dominated by planktonic species. Three dominant species Cyclostephanos dubius, Aulacoseira granulata and Aulacoseira alpigena are unevenly distributed across the lake. The distribution of surface sediment diatoms must be subject to trophic status, hydrodynamics and other spatial variables in the lake.

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Loss on ignition: a qualitative or quantitative method for organic matter and carbonate mineral content in sediments?

Cited by 344 publications

References 22 publications

Soil mineral structural water loss during loss on ignition analyses

Soil mineral structural water loss during loss on ignition analyses

Trace metal fractionation in water and sediments of an urban river stretch

Influence of environmental and spatial factors on the distribution of surface sediment diatoms in Chaohu Lake, southeast China

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