Page 218 - Fundamentals of Air Pollution

Midget impinger 10 ml 0.1 M iodine 1-1.5 100 91-100 Dithizone Copper
monochloride in
.3 N hydrochloric
acid
Nickel carbonyl Midget impinger 15 ml 3% 2.8 50-90 + 90 Complex with —
hydrochloric acid alpha-furil-
dioxime
Nitrogen dioxide Fritted bubbler 20-30 ml Saltzman 0.4 Sample until 94-99 Reacts with Ozone in fivefold
(60-70 /urn pore reagent 0 color absorbing excess peroxyacyl
size) appears; solution nitrate
probably
10 ml of air
Ozone Midget impinger 1% potassium 1 25 + 95 Measures color of Other oxidizing
iodide in 1 N iodine liberated agents
potassium
hydroxide
Phosphine Fritted bubbler 15 ml 0.5% silver 0.5 5 86 Complexes with Arsine, stibine,
diethyl absorbing hydrogen sulfide
dithiocarbamate solution
in pyridine
Styrene Fritted midget 15 ml spectrograde 1 20 + 90 Ultraviolet analysis Other aromatic
impinger isooctane hydrocarbons
Sulfur dioxide Midget impinger, 10 ml sodium 2-3 2 99 Reaction of Nitrogen dioxide,* 1 1
fritted rubber tetrachloromer- dichloro- hydrogen sulfide
curate sulfitomercurate
and formalde-
hydepararosani-
line
(Continued)