Determination of trace anions in organic solvents
Kaiser, E; Rohrer, J
| HERO ID | 1614466 |
|---|---|
| In Press | No |
| Year | 1999 |
| Title | Determination of trace anions in organic solvents |
| Authors | Kaiser, E; Rohrer, J |
| Journal | Journal of Chromatography A |
| Volume | 858 |
| Issue | 1 |
| Page Numbers | 55-63 |
| Abstract | Ion chromatography along with matrix elimination was used to reliably determine trace levels of anionic contaminants in organic solvents. A 5-ml sample volume was injected directly into the instrument without any sample pretreatment. High-purity deionized water was used to deliver the sample to a preconcentration column, where the anions of interest were retained while the organic matrix was rinsed to waste. A sodium carbonate eluent eluted concentrated anions from the preconcentration column and separated them on a 2-mm pellicular anion-exchange column. The separated anions were detected by suppressed conductivity. This method was used to determine the anionic contaminants of isopropanol, acetone and N-methylpyrrolidone. Method detection limits for chloride, nitrate, sulfate and phosphate were all lower than 1 microg/l. |
| Doi | 10.1016/s0021-9673(99)00797-9 |
| Pmid | 10544891 |
| Wosid | WOS:000083088000005 |
| Is Certified Translation | No |
| Dupe Override | No |
| Comments | Source: Web of Science WOS:000083088000005 |
| Is Public | Yes |
| Language Text | English |
| Keyword | isopropanol; inorganic anions; acetone; methylpyrrolidone |