Determination of multi-element profiles of soil at Visakhapatnam using EDXRF technique

Sandeep, P.; Kothai, P.; Dusane, C. B.; Sahu, S. K.; Pandit, G.G.

doi:10.1007/s10967-014-3579-y

Cited by 5 publications

(2 citation statements)

References 20 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The method of standard addition has been shown to work well for measuring calcium in powdered milk . In addition, XRF has been used to measure a variety of metals in soils by comparing to standard reference materials. − In all of these papers, iron has been present in easily measurable concentrations in sites around the world, making it an ideal element to use in this laboratory. In addition, with a Kα emission at 6.4 keV, iron is easily measured with an inexpensive XRF instrument.…”

Section: Introductionmentioning

confidence: 99%

Exploring Matrix Effects on the Determination of Iron in Soil Using X-ray Fluorescence

Sharpe

2024

J. Chem. Educ.

View full text Add to dashboard Cite

X-ray fluorescence (XRF) spectroscopy is a powerful tool for the multielement analysis of a wide variety of samples. Due to the perceived cost and complexity of the experiment, it has not been widely adopted in the undergraduate laboratory curriculum. Presently, the cost to purchase an XRF instrument is on the order of flame atomic absorption instrumentation, and the use of an XRF instrument is quick to master. Qualitative work is very straightforward, but because of matrix effects, quantitative work provides some interesting challenges and educational opportunities. The quantitative analysis of iron in soil provides an ideal example of the degree to which matrix effects in solid samples attenuate analytical signals and allows the comparison of different calibration methods. The prevalence of finding iron in local soil makes this experiment widely applicable and relatively safe, given the benign nature of the analyte. Student groups perform different calibration methods and, after the lab rotation is complete, compare their results in order to unravel what calibration method best compensates for the matrix effects observed in a soil sample.

show abstract

Section: Introductionmentioning

confidence: 99%

Exploring Matrix Effects on the Determination of Iron in Soil Using X-ray Fluorescence

Sharpe

2024

J. Chem. Educ.

View full text Add to dashboard Cite

show abstract

“…Total bromine content in soil samples is usually determined by solid-state techniques such as instrumental neutron activation analy sis (INAA) (Muhammad et al, 2012) and X-ray fluorescence spectrometry (XRF) (Sandeep et al, 2014). Despite the high selectivity and sensitivity of INAA, expensive costs, the need for a nuclear reactor for irradiation, and the rather long analysis times imposed by long waiting (cooling) periods for short-lived radioisotopes to decay have restricted its application in some environmental studies.…”

Section: Introductionmentioning

confidence: 99%

Bromine and bromide content in soils: Analytical approach from total reflection X-ray fluorescence spectrometry

et al. 2016

View full text Add to dashboard Cite

Monitoring total bromine and bromide concentrations in soils is significant in many environmental studies. Thus fast analytical methodologies that entail simple sample preparation and low-cost analyses are desired. In the present work, the possibilities and drawbacks of low-power total reflection X-ray fluorescence spectrometry (TXRF) for the determination of total bromine and bromide contents in soils were evaluated. The direct analysis of a solid suspension using 20 mg of fine ground soil (<63 μm) gave a 3.7 mg kg(-1) limit of detection for bromine which, in most cases, was suitable for monitoring total bromine content in soils (Br content range in soils = 5-40 mg kg(-1)). Information about bromide determination in soils is also possible by analyzing the Br content in water soil extracts. In this case, the TXRF analysis can be directly performed by depositing 10 μL of the internal standardized soil extract sample on a quartz glass reflector in a measuring time of 1500 s. The bromide limit of detection by this approach was 10 μg L(-1). Good agreement was obtained between the TXRF results for the total bromine and bromide determinations in soils and those obtained by other popular analytical techniques, e.g. energy dispersive X-ray fluorescence spectrometry (total bromine) and ionic chromatography (bromide). As a study case, the TXRF method was applied to study bromine accumulation in two agricultural soils fumigated with a methyl bromide pesticide and irrigated with regenerated waste water.

show abstract

Energy Dispersive X-Ray Fluorescent Analysis of Soil in the Vicinity of Industrial Areas and Heavy Metal Pollution Assessment

2017

View full text Add to dashboard Cite

Determination of multi-element profiles of soil at Visakhapatnam using EDXRF technique

Cited by 5 publications

References 20 publications

Exploring Matrix Effects on the Determination of Iron in Soil Using X-ray Fluorescence

Exploring Matrix Effects on the Determination of Iron in Soil Using X-ray Fluorescence

Bromine and bromide content in soils: Analytical approach from total reflection X-ray fluorescence spectrometry

Energy Dispersive X-Ray Fluorescent Analysis of Soil in the Vicinity of Industrial Areas and Heavy Metal Pollution Assessment

Contact Info

Product

Resources

About