Determination of total sulfur in lichens and plants by combustion-infrared analysis

Sulfur

“…The volatile products formed may then be used after absorption for volumetric, gravimetric, titrimetric and colorimetric quantification (e.g., Nebesar 1971/72, Kirsten 1979, MAFF 1986, Part V, Chapter 2, Section 5.3.12), or passed into a measuring device for direct (e.g., infrared) determination (Jackson et al 1985). Ion chromatography coupled to ICP-AES was also used for volatile combustion products (Kowalenko and Van Laerhoven 1998a).…”

Analytical Chemistry of Element Determination (Non‐Nuclear and Nuclear)

“…Regarding applications, the paper by Kirsten (1979), on automatic methods for the simultaneous determination of carbon, hydrogen, nitrogen, and sulfur, and for sulfur alone in organic and inorganic materials, is one of the nice, careful studies by one of the more recent workers in this old established technique. The determination, by Jackson et al (1985) of total sulfur in lichens and plants by combustion-infrared analysis, is another interesting careful application by a researcher at USGS. A chapter (Ihnat 2000c) on Microchemical methods in the AOAC Methods manual contains detailed descriptions of classical combustion methods for nonmetals.…”

Lichens as bioindicators of air quality

“…Numerous washing schemes have been used to clean plants: tap or distilled water rinses (with or without ultrasonication), mild detergent washes, and dilute acid washes (Jones and Case 1990, Little 1973, Saiki and Maeda 1982. Goyal and Seaward (1981), Lawrey and Hale (1981), and Jackson et al (1985) observed leaching of metals and sulfur from lichens, but it is difficult to tell whether the decrease in element concentration with more aggressive cleaning (i.e., with additional washing cycles or more vigorous washes) is due to more effective removal of contaminants or leaching from the lichen. Little (1973) found that water washing removed the majority of the surficial deposits from foliar samples.…”