Soil Characterization by Energy Dispersive X-Ray Fluorescence: Sampling Strategy for in situ Analysis

Evaluation and calibration of a Field Portable X-Ray Fluorescence spectrometer for quantitative analysis of siliciclastic soils and sediments

“…Advances in Energy Dispersive X-Ray Fluorescence spectrometry (EDXRF) technology have given rise to a new generation of field portable instruments (FP-XRF) capable of providing rapid and non-destructive analysis of elemental composition in sediments and soils. 2,4,[6][7][8][9][10][11][12][13]15,[17][18][19][20][21][22][23]27 Many studies have focused on the characterization or screening of materials from contaminated sites and/or capitalized on the portability of these instruments. According to EPA Method 6200, FP-XRF results are acceptable when measurements of reference materials are within AE20% of the certified values for a particular element and measurement precision is within 20%.…”

Green chemistry in analytical atomic spectrometry: a review

“…In general, analysis can be carried out within a time in the range of 30-1000 s with a good precision. [221][222][223][224] In spite of this, it is not usual to consider XRF as a set of green techniques due to risks that this energy involves. The X-ray beam can be generated with a ceramic tube or from radionuclides.…”

“…Forster et al 239 pointed out that surface morphology, surface coatings and grain size of materials can cause attenuation of incident and fluorescent X-rays, yet appropriate mathematical corrections can provide a high level of accuracy and precision. Qualitative analysis with portable systems has been applied for a more efficient sampling, i.e., soil sampling, 222 in order to perform a fast general screening of the soil composition and detect the points of contamination. It allows selecting representative points, thereby saving time in the sampling stage.…”

Polarized Energy Dispersive X-ray Fluorescence Applications of Spice Samples

“…[1] PEDXRF is a very sensitive, fast, easy, highly recommended, nondestructive, reliable, and useful technique to determine the chemical compositions of various types of samples. [2][3][4][5][6][7][8][9][10] Recently, the XRF techniques are one of the most popular methods for food and plant samples analysis. Carvalho and coworkers analyzed heavy metals in wild edible mushrooms under different pollution conditions by XRF spectrometry.…”