Calibration for interelement effects in x-ray fluorescence analysis

Rasberry, Stanley D.; Heinrich, Kurt F. J.

doi:10.1021/ac60337a027

Cited by 246 publications

(41 citation statements)

References 30 publications

(15 reference statements)

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“…The samples were powdered to À200 mesh using a rock crusher (Pulverisette 9 Fritz-GMBH). Major element analyses were carried out using pressed powder pellets (Saini et al, 2000) on a Siemens SRS 3000 sequential X-ray spectrometer with matrix correction procedure given in Rasbary and Heinrich (1974) at the Wadia Institute of Himalayan Geology, Dehradun. Operation condition for the XRF machine was 20/40 kV for major oxides.…”

Section: Methodsmentioning

confidence: 99%

Petrography and major element geochemistry of the Permo-Triassic sandstones, central India: Implications for provenance in an intracratonic pull-apart basin

Ghosh

Sarkar

Ghosh

2012

Journal of Asian Earth Sciences

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Section: Methodsmentioning

confidence: 99%

Petrography and major element geochemistry of the Permo-Triassic sandstones, central India: Implications for provenance in an intracratonic pull-apart basin

Ghosh

Sarkar

Ghosh

2012

Journal of Asian Earth Sciences

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“…The Lachance-Trail1 model was the first of the concentration correction models to be published. Some years after the La- chance-Trail1 paper appeared, Heinrich and his co-workers at the National Bureau of Standards, suggested an extension to the Lachance-Trail1 approach (Rasberry and Heinrich, 1974) in which absorbing and enhancing elements are separated as a and p terms.…”

Section: Influence Correction Methodsmentioning

confidence: 99%

X‐Ray Fluorescence Analysis

Jenkins

1999

X‐ray Characterization of Materials

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“…Derived models are those which are based on some simplification of a fundamental method [10,20], but which still allow concentrations to be calculated from intensities. Regression models are those which are semiempirical in nature [8,21], and which allow the determination of influence coefficients by regression analysis of data sets obtained from standards (see e.g., [22]). [All regression analysis includes terms for W (or concentration C); an intensity (or intensity ratio) term /; an instrument dependent term which essentially defines the sensitivity of the spectrometer for the analyte in question, and a correction term, which …”

Section: Influence Correction Methodsmentioning

confidence: 99%

Quantitative Procedures in X‐Ray Fluorescence Analysis

Jenkins¹

1999

X‐Ray Fluorescence Spectrometry

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The intensity of a characteristic line from an element in a prepared specimen is related to concentration of the element [1,2,3]. Unfortunately, this relationship is generally not linear. There are two main factors which account for the nonlinearity, matrix effects and specimen heterogeneity effects. An expression can thus be written to equate the concentration C of a given element with these two factorswhere AT is a function of a number of instrumental factors and is generally referred to as the calibration constant. R is the measured counting rate from the element in question, M a term describing the matrix effect, and 5 a term representing specimen effects. While Equation 12.1 is not directly soluble, it does at least serve as a starting point in the development of more practical mathematical relationships.In an X-ray analytical laboratory, the quantitative method of analysis employed will be typically predicated by a number of circumstances of which probably the four most common are: 1) the complexity of the analytical problem; 2) the time allowable; 3) the computational facilities at the disposal of the analyst; and 4) the number of standards available. It is convenient to break quantitative analytical methods down into two major categories, single element methods and multiple element methods, as shown in Table 12.1. The simplest quantitative analysis situation to handle is the determination of a single element in a known matrix. A slightly more difficult case might be the determination of a single element where the matrix is unknown. As shown in the table, three basic methods are commonly employed in this situation: use of internal standards, use of standard addition, or use of a scattered line from the X-ray source. The most complex case is the analysis of all, or most, of the elements in a sample, about which little or nothing is known. In this case, a full qualitative analysis would be required before any attempt is made to quantitate the matrix elements. Once the 175 X-Ray Fluorescence Spectrometry, Second Edition

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Calibration for interelement effects in x-ray fluorescence analysis

Cited by 246 publications

References 30 publications

Petrography and major element geochemistry of the Permo-Triassic sandstones, central India: Implications for provenance in an intracratonic pull-apart basin

Petrography and major element geochemistry of the Permo-Triassic sandstones, central India: Implications for provenance in an intracratonic pull-apart basin

X‐Ray Fluorescence Analysis

Quantitative Procedures in X‐Ray Fluorescence Analysis

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