Effects of Soil Sample Storage Treatment on the Composition and Fe, Al, and Mn Speciation of Soil Solutions Obtained by Centrifugation

Mobility of arsenic and its compounds in soil and soil solution: The effect of soil pretreatment and extraction methods

“…The sequential extraction procedures regarding specific behavior of arsenic in soil were described also by Hall et al [19] and Wenzel et al [20]. The sample pretreatment and/or storage before extraction can affect the composition of soil solution which is related to element mobility in soils [21,22]. Various methods were developed for collection of soil solutions [23] such as centrifugation, suction cups or lysimeters where in situ sampling is considered to better represent solution extracted by plants and the physical structure of the sample remains intact.…”

Assessment of potentially reactive pools of aluminium in poor forest soils using two methods of fractionation analysis

“…Unfortunately, selectivity for a specific phase or binding form cannot be expected for most of the procedures [17]. Apart from the kind of extractant, also important are the details of the analytical procedure, from the taking and storing of a sample to the temperature conditions, pH and time of operation [18][19][20]. It should be kept in mind that even slight changes in the procedure may produce substantial changes in the result [21].…”

Effect of soil properties and sample preparation on extractable and soluble Pb and Cd fractions in soils

“…The sample pre-treatment and/or storage before extraction can affect the composition of a soil solution which in turn affects element mobility in soils [8,9]. Various methods were developed for the collection of soil solutions [10] such as centrifugation, suction cups or lysimeters and in situ sampling is considered to better represent the soil solution composition and the physical structure of the sample remains intact.…”

“…The available analytical methods and/or approaches of the determination of individual forms of elements and other compounds in soil solutions were reviewed by Peijnenburg and Jager [11] and Nolan et al [10]. Among them, chelating ion-exchange [12], size exclusion chromatography [9], and the Donnan dialysis membrane technique [13,14] are frequently discussed. Anodic striping voltametry (ASV) is a very sensitive technique which is usually used for the detection of ions, and especially metals.…”