Capillary electrophoresis for measuring major and trace anions in thermal water and condensed-steam samples from hydrothermal springs and fumaroles
Santoyo, E; García, R; Abella, R; Aparicio, A; Verma, SP
| HERO ID | 1235546 |
|---|---|
| In Press | No |
| Year | 2001 |
| Title | Capillary electrophoresis for measuring major and trace anions in thermal water and condensed-steam samples from hydrothermal springs and fumaroles |
| Authors | Santoyo, E; García, R; Abella, R; Aparicio, A; Verma, SP |
| Journal | Journal of Chromatography A |
| Volume | 920 |
| Issue | 1-2 |
| Page Numbers | 325-332 |
| Abstract | A new application of capillary electrophoresis for measuring major and trace anions in thermal water and condensed-steam samples is presented. Ten fluid samples were collected from hydrothermal springs and fumaroles located in a volcanic zone of Deception Island, Antarctica. Anion separation was achieved in less than 6 min using indirect UV detection at 254 nm with a negative power supply (-15 kV). The electrolyte consisted of 4.7 mM sodium chromate, 4.0 mM electroosmotic flow modifier (OFM) hydroxide, 10 mM 2-(N-cyclohexylamino)ethanesulfonic acid and 0.1 mM calcium gluconate (pH 9.1). Major anions (Cl-, SO4(2), PO4H2+, and CO3H-) were measured using hydrostatic injection (10 cm for 30 s) at 25 degrees C. Trace amounts of anions (F-, Br-, and NO3-) were better determined by electromigration injection (4 kV, 10 s) at 15 degrees C. Good reproducibility of the migration times (<0.72% RSD), a satisfactory linear response and accuracy as well as acceptable detection limits were successfully obtained. |
| Doi | 10.1016/S0021-9673(01)00835-4 |
| Pmid | 11453018 |
| Wosid | WOS:000169580900040 |
| Is Certified Translation | No |
| Dupe Override | No |
| Is Public | Yes |
| Language Text | English |
| Keyword | water analysis; geochemistry; inorganic anions |
| Relationship(s) |
|