Main Title |
Laboratory Procedure for the Spectrophotofluorometric Determination of Selenium in Solid Waste. |
Author |
Johnson., Henry ;
|
CORP Author |
Environmental Protection Agency, Cincinnati, Ohio. Solid Waste Management Office. |
Year Published |
1971 |
Report Number |
EPA-RS-03-68-06; |
Stock Number |
PB-256 367 |
Additional Subjects |
Selenium ;
Solid wastes ;
Chemical analysis ;
Laboratory equipment ;
Design criteria ;
Performance evaluation ;
Spectroscopy ;
Fluoroscopy ;
Spectrophotofluorometers
|
Holdings |
Library |
Call Number |
Additional Info |
Location |
Last Modified |
Checkout Status |
NTIS |
PB-256 367 |
Some EPA libraries have a fiche copy filed under the call number shown. |
|
07/26/2022 |
|
Collation |
12p |
Abstract |
The determination of selenium in solid waste and the effluents of solid waste treatment systems is of considerable interest because of the toxicity of selenium and its reported presence in almost all conceivable types of paper. A 2,3-diaminonaphthalene (DAN) analytical procedure is preceded by isolation of selenium with toluene 3,4-dithiol and includes the use of EDTA, sodium fluoride and sodium oxalate masking agents. The reactions in the procedure are thought to involve the formation of a piazselenol. The piazselenol emits at 5700 A when excited at 3170 A. The use of the DAN fluorometric procedure affords the sensitivity necessary for trace analysis while retaining a precision of measurement comparable to competitive methods. The isolation step and masking agents are used to prevent background fluorescence and foreign ion effect. |
NTIS Title Notes |
Open-file rept.. |
PUB Date Free Form |
1971 |
Category Codes |
14B; 13B |
NTIS Prices |
PC A02/MF A01 |
Document Type |
NT |
Cataloging Source |
NTIS/MT |
Control Number |
326624023 |
Origin |
NTIS |
Type |
CAT |