Removal of interferences in the speciation of chromium using an octopole reaction system in ion chromatography with inductively coupled plasma mass spectrometry
| dc.contributor.author | Chen, Z. | |
| dc.contributor.author | Mallavarapu, M. | |
| dc.contributor.author | Naidu, R. | |
| dc.date.issued | 2007 | |
| dc.description.abstract | When inductively coupled plasma mass spectrometry (ICP-MS) is used for the detection of <sup>52</sup>Cr (83.8%) species in ion chromatography (IC), interference from polyatomic ions such as <sup>40</sup>Ar<sup>12</sup>C<sup>+</sup> and <sup>35</sup>Cl<sup>16</sup>O<sup>1</sup>H<sup>+</sup>, often occurs due to their mass at m/z 52. To address the issue, an octopole reaction system (ORS) in ICP-MS, including He and H<inf>2</inf> modes, was used to determine whether the background and interference from polyatomic ions could be reduced in the detection of <sup>52</sup>Cr. Compared to standard mode, the polyatomic ions were reduced by either He or H<inf>2</inf>; for example, more than 97 and 98% of <sup>35</sup>Cl was removed using a He and H<inf>2</inf> tune, respectively. However, the detection sensitivity for <sup>52</sup>Cr was decreased, for example, the sensitivity was 27.95 and 67.02% of the standard mode for Cr(EDTA)<inf>2</inf> <sup>-</sup>using a He and H<inf>2</inf> tune, respectively. The H<inf>2</inf> tune is recommended for the detection of <sup>52</sup>Cr at a flow rate of 2.0 mL/min with detection limits in the range of 0.2-0.4 μg/L. The developed method was used to measure chromium speciation in waters containing high concentration of chloride. © 2007 Elsevier B.V. All rights reserved. | |
| dc.identifier.citation | Talanta, 2007; 73(5):948-952 | |
| dc.identifier.doi | 10.1016/j.talanta.2007.05.030 | |
| dc.identifier.issn | 0039-9140 | |
| dc.identifier.uri | https://hdl.handle.net/1959.8/51692 | |
| dc.language.iso | en | |
| dc.publisher | Elsevier BV | |
| dc.rights | Copyright status unknown | |
| dc.source.uri | https://doi.org/10.1016/j.talanta.2007.05.030 | |
| dc.subject | chromium speciation | |
| dc.subject | collision reaction cell | |
| dc.subject | contaminated water | |
| dc.subject | IC-ICPMS | |
| dc.title | Removal of interferences in the speciation of chromium using an octopole reaction system in ion chromatography with inductively coupled plasma mass spectrometry | |
| dc.type | Journal article | |
| pubs.publication-status | Published | |
| ror.mmsid | 9915911477001831 |