Determination of Total Iodine in Soils by Inductively Coupled Plasma Mass Spectrometry

Yamada, Hidekazu; Kiriyama, Totsuya; Yonebayashi, Koyo

doi:10.1080/00380768.1996.10416633

Cited by 50 publications

(32 citation statements)

References 12 publications

(12 reference statements)

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“…This method was applied for the speciation of selenium in soil (Kang et al 1993). In a previous paper (Yamada et al 1996), it was reported that a major part of soil iodine was dissolved in the TMAH solution. For example, when soil reference materials (GSS-I-8) supplied by the National Research Center, China were examined, 93-107% of the total iodine in the soils was extracted with TMAH (Yamada et al 1997).…”

Section: Speciation Methodsmentioning

confidence: 99%

“…Total iodine content of the soils was determined according to the method developed previously (Yamada et al 1996). The total iodine content was slightly lower than the average content (43 mg kg-I) of Japanese forest and upland soils (Yuita 1994).…”

Section: Methodsmentioning

confidence: 99%

“…Total concentration of iodine in a soil extract was determined by the ICP-MS method proposed by Yamada et al (1996). For the analysis of iodine in the form of iodide, a HPLC method with fluorescence detection (Yamada et al 1995) was applied.…”

Section: Methodsmentioning

confidence: 99%

See 2 more Smart Citations

Speciation of iodine in soils

Yamada

Kiriyama

Onagawa

et al. 1999

Soil Science and Plant Nutrition

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Section: Speciation Methodsmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

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Speciation of iodine in soils

Yamada

Kiriyama

Onagawa

et al. 1999

Soil Science and Plant Nutrition

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“…Although this technique is widely accepted as a reliable method, it requires specially designed equipment for this purpose together with careful and time-consuming procedures. On the other hand, alkaline extraction with tetramethylammonium hydroxide (TMAH) has been used as an extraction technique for these elements (Yamada et al 1996;Rose et al 2001). Whereas TMAH extraction is simple and rapid, there is a high possibility that the values of Br and I may result in underestimation (Tagami et al 2010) because complete extraction might not be achieved by this technique.…”

Section: Introductionmentioning

confidence: 99%

Bromine and iodine in Japanese soils determined with polarizing energy dispersive X-ray fluorescence spectrometry

Yamasaki

Takeda

Watanabe

et al. 2015

Soil Science and Plant Nutrition

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The bromine (Br) and iodine (I) status of Japanese soils was investigated by analyzing around 900 soil samples and related materials with polarizing energy dispersive X-ray fluorescence spectrometry (EDXRF). The samples consisted of the following five groups: (1) 468 soil samples collected from 70 sites in the mainland of Japan (mainland soils); (2) 139 agricultural soils collected nationwide; (3) 93 samples taken from the southwestern island (island soils); (4) 52 coastal marine sediments; and (5) 137 tsunami deposits by the 2011 off the Pacific coast of Tohoku Earthquake. The geometric mean of Br was highest in marine sediments (30.6 mg kg −1 ), followed by that in island soils (24.8 mg kg), although the difference between these two groups was not significant. The values for the other three groups were significantly lower at p < 0.05 by Welch's t test, and were in the following order: mainland soils (10.4 mg kg ). For I, the geometric mean of island soils (31.9 mg kg −1 ) was significantly higher than that of other soils at p < 0.05 by Welch's t test, and was more than three times higher than that of mainland soils (9.11 mg kg −1 ), which was the second highest group. The values for the other three groups were in the following order: marine sediments (5.68 mg kg ). The contents of I were higher than those of Br for around two thirds of the island samples. As a result, the geometric mean of the Br/I ratio was less than 1.0 only in this group. The contents of both elements were significantly higher in upland soils than in paddy fields soils. These differences could be partly attributed to the higher ratio of Andosols containing higher amounts of Br and I in upland samples, in addition to the difference in the chemical forms of both elements in paddy field and upland samples. The correlation coefficients among rare earth elements, for example, were more than 0.9 for a considerable number of combinations, whereas more than 80% of the absolute values of correlation coefficients for Br and I against 60 other elements were less than 0.4. These results strongly suggest that the behavior of Br and I in the terrestrial environments differs considerably from that of most other metallic elements.Key words: Bromine (Br), correlation coefficients among elements, effect of land use, energy-dispersive X-ray fluorescence spectrometry, iodine (I).

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“…An alkaline extraction of halogens from solid samples, especially biological samples, with tetramethylammonium hydroxide (TMAH) has been also used as a preparation method for ICP-MS measurement (Akabane and Shimizu 1991;Rose et al 2001;Tagami et al 2006). Yamada et al (1996) applied the TMAH extraction to total I determination in soil samples. Although the TMAH extraction is simple and rapid, it does not completely digest soil minerals.…”

Section: Introductionmentioning

confidence: 99%

Determination of total contents of bromine, iodine and several trace elements in soil by polarizing energy-dispersive X-ray fluorescence spectrometry

Takeda¹,

Yamasaki²,

Tsukada³

et al. 2011

Soil Science and Plant Nutrition

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A non-destructive analysis method for total bromine (Br) and iodine (I) contents in soil was established using polarizing energy-dispersive X-ray fluorescence (EDXRF) spectrometry. The matrix-corrected intensity of Br and I K X-rays from pressed pellets of soil powder samples was calibrated with their contents measured by inductively coupled plasma (ICP)-mass spectrometry after pyrohydrolysis preparation. The calibration curves for Br and I were successfully obtained in the concentration ranges 3.8-223 mg kg À1 and 0.91-54 mg kg À1 respectively. Repeated analyses of the same sample with polarizing EDXRF spectrometry within one day and after approximately 1.5 years showed good reproducibility of the measurement results. The lower limits of detection for Br and I were 0.14 mg kg À1 and 0.34 mg kg À1 respectively. The established analytical method for total Br and I contents in soil is non-destructive, simple and rapid, and is suitable for routine analysis. Trace elements such as rubidium (Rb), strontium (Sr), yttrium (Y), zirconium (Zr), niobium (Nb), cadmium (Cd), tin (Sn), antimony (Sb), caesium (Cs), barium (Ba), light rare earth elements and lead (Pb) were also measurable simultaneously under the identical operational conditions as those for Br and I measurements.

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Determination of Total Iodine in Soils by Inductively Coupled Plasma Mass Spectrometry

Cited by 50 publications

References 12 publications

Speciation of iodine in soils

Speciation of iodine in soils

Bromine and iodine in Japanese soils determined with polarizing energy dispersive X-ray fluorescence spectrometry

Determination of total contents of bromine, iodine and several trace elements in soil by polarizing energy-dispersive X-ray fluorescence spectrometry

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