Measurement of acid sulfate levels in aerosols

Details Measurement of acid sulfate levels in aerosols Measurement of acid sulfate levels in aerosols

1995-05-02

1997-02-18

Fields, Carolyn E.

Radiant energy

Invisible radiant energy responsive electric signalling

Infrared responsive

250304, 250435, G01N 2135

Patent

active

056043481

ABSTRACT:
A non-destructive unambiguous method of measuring the presence and level of acid sulfates, particularly ammonium bisulfate in air is disclosed including infrared energy absorbance measurements of particles deposited on the filter through which the air passes.

REFERENCES:
patent: 4140005 (1979-02-01), Kittelson
patent: 4392388 (1983-07-01), Baverle
patent: 4823009 (1989-04-01), Biemann et al.
patent: 4942297 (1990-07-01), Johnson et al.
patent: 4942774 (1990-07-01), McFarland
McClenny et al, "Speciation of Ambient Sulfate Particulate Matter Using FT-IR-Based Absorption to Complement Wet Chemical and Thermal Speciation Measurements", Applied Spectroscopy, 48 (6), 1994, pp. 706-712.

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