Abstract

One thousand composited particulate samples collected by the National Air Surveillance Network in 1970 on glass fiber filters were analyzed for 24 trace elements by spark-excited direct reading emission spectrometry. After acid extraction, the lithium chloride stabilized extracts were analyzed in duplicate using a rotrode with indium as an internal standard. Interference corrections and calibration data were frequently updated during analyses by special minicomputer programs. Iron, calcium, aluminum, magnesium, zinc, and manganese were found in unused filters. Precision data on samples had a median relative standard deviation of 14% for all elements. The median spike recovery was 97%, excluding tin with 11 to 28%. Analysis of different portions of the same filters gave average concentration differences with a median of 14%. Detection limits for all elements and lead analysis by both atomic absorption and optical emission are reported. Zinc and tin data were unacceptable due to poor precision or accuracy.

Atmospheric particulate analysis using angular light scattering

M. Z. Hansen
Appl. Opt. 19(20) 3441-3448 (1980)

Detection of micro-toxic elements in commercial coffee brands using optimized dual-pulsed laser-induced spectral analysis spectrometry

Ahmed Asaad I. Khalil and Osama A. Labib
Appl. Opt. 57(23) 6729-6741 (2018)

Particulate-matter distribution and its flow from power plants using infrared spectrometry and thermodynamics for in situ continuous emissions monitoring

Alex Shlifshteyn, Fred D. Lang, and Robert Ayrapetian
Appl. Opt. 35(3) 351-363 (1996)

An Application of Spectrographic Methods to Chemical Concentrations of Trace Elements in Iron and Steel Analysis

R. A. Wolfe and R. G. Fowler
J. Opt. Soc. Am. 35(1) 86-91 (1945)

Rapid trace element analysis of microgram soft materials with cryogenic milling and laser ablation spectroscopy

Yuanchao Liu, Yi-Kong Hsieh, Conrad Wong, Irfan Ahmed, Rafay Ahmed, Muhammad Shehzad Khan, Richard Y. H. Cheung, Chu-Fang Wang, and Condon Lau
Appl. Opt. 59(26) 7752-7759 (2020)