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| Content Provider | Royal Society of Chemistry (RSC) |
|---|---|
| Author | Anastassiades, Tassos Makonnen, Yoseif Beauchemin, Diane Odenigbo, Chukwudum Asfaw, Alemayehu |
| Copyright Year | 2014 |
| Abstract | Inductively coupled plasma optical emission spectrometry with a long demountable torch (whose outer tube is 2.5 cm longer than a standard torch) and a conventional pneumatic nebulisation system was applied to the determination of C, H and O concentrations from an organic compound dissolved in water. The sample solution was simply aspirated directly into the plasma without any sample pre-treatment (such as desolvation or degassing). The long torch was required to significantly decrease the background arising from entrained air. Good linearity was obtained for C, N, H and O upon calibration with standard solutions prepared from ultrapure tris(hydroxymethyl)aminomethane. A weighed blank correction was applied to compensate for the contribution from water, especially in the cases of H and O. Under these conditions, the detection limits for C, N, H and O were, respectively, 0.2, 50, 1000 and 2000 μmol of analyte per g of solution. Accurate concentrations, according to a Student's t test at the 95% confidence level, were measured for C, H and O in a solution of D-glucosamine hydrochloride. No internal standardisation was necessary. However, the N concentration was biased high, irrespectively of the N emission line used (from 149.262 to 593.178 nm), which rules out spectroscopic interference and will be further investigated. Nonetheless, the possibility of accurately determining C, H and O simultaneously with trace elements makes the approach quite promising. It is much simpler than alternate methods that require derivatisation of the compound prior to detection. |
| Starting Page | 454 |
| Ending Page | 457 |
| Page Count | 4 |
| File Format | HTM / HTML PDF |
| ISSN | 02679477 |
| Volume Number | 29 |
| Issue Number | 3 |
| Journal | Journal of Analytical Atomic Spectrometry |
| DOI | 10.1039/c3ja50246e |
| Language | English |
| Publisher | Royal Society of Chemistry |
| Access Restriction | Open |
| Subject Keyword | Inductively coupled plasma Organic compound Pulmonary aspiration Blood plasma Analyte Glucosamine |
| Content Type | Text |
| Resource Type | Article |
| Subject | Spectroscopy Analytical Chemistry |
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