| Main Title |
Large-Scale Preparation of Potassium Hydroxide-Modified Silica Gel Adsorbent. |
| Author |
Lebo, J. A. ;
Zajicek, J. L. ;
May, T. W. ;
Smith., L. M. ;
|
| CORP Author |
Environmental Research Lab.-Narragansett, Newport, OR. Mark O. Hatfield Marine Science Center. ;National Fisheries Contaminant Research Center, Columbia, MO. |
| Publisher |
c1989 |
| Year Published |
1989 |
| Report Number |
EPA/600/J-89/182; |
| Stock Number |
PB90-140880 |
| Additional Subjects |
Chemical analysis ;
Potassium silicates ;
Adsorbents ;
Environmental surveys ;
Chromatographic analysis ;
Separation ;
Potassium hydroxides ;
Silica gel ;
Laboratory equipment ;
Chemical engineering ;
Reprints ;
Chemical preparation ;
Small systems
|
| Holdings |
| Library |
Call Number |
Additional Info |
Location |
Last
Modified |
Checkout
Status |
| NTIS |
PB90-140880 |
Some EPA libraries have a fiche copy filed under the call number shown. |
|
07/26/2022 |
|
| Collation |
6p |
| Abstract |
A large-scaled method, using custom-made apparatus, is described for making potassium hydroxide-modified silica gel. Batches as large as 2.3 kg can be made in 16 man-hours. A smaller-scale version of the method, requiring no specialized apparatus, is also described. The method can be used to integrate this adsorbent into many sample-enrichment procedures. Many environmental contaminants of worldwide interest (e.g., polychlorinated biphenyls, polycyclic aromatic hydrocarbons, chlorinated dibenzodioxins and dibenzofurans, and many organochlorine pesticides) can be eluted from potassium silicate (KS). |
| Supplementary Notes |
Pub. in Jnl. of the Association of Official Analytical Chemists, v72 n2 p371-373 1989. Prepared in cooperation with National Fisheries Contaminant Research Center, Columbia, MO. |
| NTIS Title Notes |
Journal article. |
| Title Annotations |
Reprint: Large-Scale Preparation of Potassium Hydroxide-Modified Silica Gel Adsorbent. |
| Category Codes |
99A; 99B; 68 |
| NTIS Prices |
PC A02/MF A01 |
| Primary Description |
600/05 |
| Document Type |
NT |
| Cataloging Source |
NTIS/MT |
| Control Number |
005320440 |
| Origin |
NTIS |
| Type |
CAT |
