| Main Title |
Standard Operating Procedure for the Field Analysis of Lead in Dust Collected by Vacuum and on Wipes by Ultrasonic, Acid Digestion, and Colorimetric Measurement. |
| Author |
Grohse, P. M. ;
Van Hise, C. C. ;
Wilson, B. M. ;
Luk, K. K. ;
Binstock, D. A. ;
|
| CORP Author |
Research Triangle Inst., Research Triangle Park, NC. Center for Environmental Measurements and Quality Assurance.;Environmental Protection Agency, Research Triangle Park, NC. National Exposure Research Lab. |
| Publisher |
Jan 98 |
| Year Published |
1998 |
| Report Number |
EPA-68-D1-0009 ;EPA-68-D5-0040; EPA/600/R-95/151; |
| Stock Number |
PB98-140734 |
| Additional Subjects |
Lead(Metal) ;
Chemical analysis ;
Colorimetry ;
Digestion(Decomposition) ;
Ultrasonic testing ;
Lead compounds ;
Sampling ;
Collecting methods ;
Dust ;
Sample preparation ;
Vacuum systems ;
Acids ;
Colorimetric analysis ;
Detection ;
Calibration ;
Quality control ;
Field tests ;
Standard operating procedures ;
Wiping
|
| Holdings |
| Library |
Call Number |
Additional Info |
Location |
Last
Modified |
Checkout
Status |
| NTIS |
PB98-140734 |
Some EPA libraries have a fiche copy filed under the call number shown. |
|
07/26/2022 |
|
| Collation |
56p |
| Abstract |
Dust samples that have been collected on dust wipes or captured via vacuum techniques are placed in 120 mL plastic specimen cups or teflon microwave digestion vessels. Fifteen (15) mL of 25% (v/v) nitric acid is added to each sample cup and after a brief manual agitation the samples are ultrasonicated for 30 minutes. Deionized water is added to a total of 50 mL. After another brief manual shaking, the sample is either filtered, centrifuted or allowed to settle for 15 minutes. A portion of extract is then adjusted to a pH between 3 and 4 with a sodium hydroxide/sodium acetate reagent prior to Pb measurement by colorimetry. A portable colorimeter is calibrated and samples are analyzed. Quality control samples include blanks, spikes and secondary or primary reference materials. An additional quality control activity includes checking for matrix effects. The typical minimum detection limit for Pb in dust on collection media is estimated to be 6 micrograms. |
| Supplementary Notes |
Sponsored by Environmental Protection Agency, Research Triangle Park, NC. National Exposure Research Lab. |
| Availability Notes |
Product reproduced from digital image. Order this product from NTIS by: phone at 1-800-553-NTIS (U.S. customers); (703)605-6000 (other countries); fax at (703)605-6900; and email at orders@ntis.fedworld.gov. NTIS is located at 5285 Port Royal Road, Springfield, VA, 22161, USA. |
| Highlights Notes |
%AUT:W. F. /Gutknecht |
| Category Codes |
68C; 99A |
| NTIS Prices |
PC A05/MF A01 |
| Primary Description |
600/09 |
| Document Type |
NT |
| Cataloging Source |
NTIS/MT |
| Control Number |
821201060 |
| Origin |
NTIS |
| Type |
CAT |
