Main Title |
Development of the Gold Amalgamation Sampling and Analytical Procedure for Investigation of Mercury in Stack Gases. |
Author |
Kal, G. William ;
Baldec, Charles ;
|
CORP Author |
TraDet, Inc., Columbus, Ohio. |
Year Published |
1972 |
Report Number |
EPA-68-02-0341; 1171; |
Stock Number |
PB-210 817 |
Additional Subjects |
( Mercury ;
Gas sampling) ;
( Air pollution ;
Mercury) ;
Coal ;
Flue gases ;
Combustion products ;
Sulfur dioxide ;
Spectrochemical analysis ;
Mercury amalgams ;
Particles ;
Quantitative analysis ;
Gas analysis ;
Gold alloys ;
Trace elements ;
Errors ;
Atomic spectroscopy ;
Air pollution detection
|
Holdings |
Library |
Call Number |
Additional Info |
Location |
Last Modified |
Checkout Status |
NTIS |
PB-210 817 |
Some EPA libraries have a fiche copy filed under the call number shown. |
|
07/26/2022 |
|
Collation |
91p |
Abstract |
The objective was to study methods of sampling for mercury in gas streams containing high SO2 concentrations. The ultimate objective was to develop a sampling procedure adaptable to copper-zinc smelters as well as fossil-fuel fired plants. Gold forms a strong amalgam with mercury resulting in its use here to quantitatively adsorb mercury from a gas stream. Mercury amalgamation accompanied by a flameless atomic absorption mercury procedure was utilized. The collection procedure consists of modifying a standard EPA isokinetic sampling train, utilizing two modified impingers containing 10 grams of gold chips to collect the mercury vapor as an amalgam. Particulates containing mercury are collected on a fiber glass filter upstream of the gold amalgam. The analytical procedure consists of transferring the modified impinger containing the mercury amalgam to an induction furnace. The mercury concentration is calculated from a peak obtained on the strip chart recording of the atomic absorption pattern. Accurate results are obtainable from stack gases within two days of on-site sampling. |