Test of x-ray fluorescence spectrometry as a method for analysis of the elemental composition of atmospheric aerosols

Hammerle, R. H.; Marsh, R.H.; Rengan, K.; Giauque, R.D.; Jaklevic, J.M.

doi:10.1021/ac60333a049

Cited by 11 publications

(5 citation statements)

References 4 publications

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“…From these considerations it is estimated that for elements well above the detection limit, the l-<r accuracy for X-ray analysis of elements with atomic numbers above 20 (Ti and heavier) is ±10%. This is compatible with the results from a recent study by Hammerle et al (15) in which X-ray fluorescence and neutron activation analyses were applied to aerosol samples, and 20% agreement was obtained. For the lighter elements the energies of the characteristic X-rays are sufficiently low that significant self-absorption can take place within the larger collected particles and within the filter media for fine particles that penetrate into the filter.…”

Section: Methodssupporting

confidence: 91%

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Ambient air analysis with dichotomous sampler and x-ray fluorescence spectrometer

Dzubay¹,

Stevens²

1975

Environ. Sci. Technol.

175

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However, Parry and Hern (8) reported negligible iodate at IC when they used an open glass tube as a bubbler; this seems to indicate that iodate would not be formed at IC with an impinger. We feel, nevertheless, that the four data points these investigators presented at unspecified values of other parameters do not provide sufficient information to draw a definite conclusion.The acidification procedure, outlined here, provides a satisfactory method for the analysis of high ozone concentrations. This is in agreement with Schmitz (25). The procedure would not be suitable for lower levels of ozone (less than 50 ppm) because the iodide solution is slowly oxidized after acidification and this would lead to a significant error. However, this shortcoming might be overcome by using buffered acidification to a controlled pH level where the rate of iodate decomposition (Equation 3) is rapid, but where oxidation remains negligible. This acidification might also be performed in stages to minimize the total time during which the pH is low.

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Section: Methodssupporting

confidence: 91%

“…The ability of the system to detect a wide variety of elements in the atmosphere is illustrated in Figure 4, which is a plot of the ranges and typical values of the concentrations of various elements in urban air (15). The detection limits (3a peak area above background) for X-ray fluorescence are superimposed on the plot.…”

Section: Methodsmentioning

confidence: 99%

Ambient air analysis with dichotomous sampler and x-ray fluorescence spectrometer

Dzubay¹,

Stevens²

1975

Environ. Sci. Technol.

175

View full text Add to dashboard Cite

show abstract

“…In a comparison study of neutron activation and X-ray fluorescence techniques, measurement precision was determined for 10 elements in atmospheric aerosols (12). As shown by the representative data of Table II, agreement between the two methods, except for bromine, is generally within experimental error.…”

Section: Present Applicationsmentioning

confidence: 99%

“…1 liter per hour compared with12 to 15 liters per hour in the competitive system. Which means you're not handcuffed by limited allocations of organic add new procedures at any time without added cost.…”

mentioning

confidence: 91%

Analytical chemistry and consumerism in the automobile industry

Lewis¹

1974

Anal. Chem.

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“…Ion induced x-ray fluorescence (95-97) has been highly touted and, of course, x-ray fluorescence induced by tube and radioisotope sources continues to gain in popularity as a relatively inexpensive multielement technique (98). Comparisons with NAA (99), development of a background reduction method (100), and attempts to use XRF for difficult elemental analyses such as S (101), are some of the more interesting studies reported.…”

mentioning

confidence: 99%