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A rapid air titration method for determining SO2 concentration in inhalation chambers has been validated using the pararosaniline-formaldehyde (PRA) method of West and Gaeke. This air-titration (iodate) method is an adaptation of iodometric methods using a starch indicator. Potassium iodate and an excess of potassium iodide are used in the reaction. Sampling is completed in ten minutes or less and concentration is calculated by use of a simple formula. Linear equations were derived over the range of concentrations from 0.5 to 100 ppm SO2 for uncorrected iodate bubbler results, data corrected for tandem bubbler concentrations and data corrected for mean iodate bubbler efficiency. Linear correlation with the PRA method over this range was 0.999 for all three sets of data.
E A Snyder, and
E D Palmes
January 1983,
Bioelectromagnetics,
E A Snyder, and
E D Palmes
January 1965,
British medical journal,
E A Snyder, and
E D Palmes
March 1966,
The Journal of physiology,
E A Snyder, and
E D Palmes
July 1967,
The Indian veterinary journal,
E A Snyder, and
E D Palmes
January 1901,
The Journal of hygiene,
E A Snyder, and
E D Palmes
February 1942,
Science (New York, N.Y.),
E A Snyder, and
E D Palmes
January 1973,
Gigiena truda i professional'nye zabolevaniia,
E A Snyder, and
E D Palmes
September 1975,
Scandinavian journal of work, environment & health,
E A Snyder, and
E D Palmes
August 2003,
Journal of agricultural and food chemistry,
E A Snyder, and
E D Palmes
March 2010,
Journal of virological methods,
