Flow injection analysis (FIA) determination of lead by hydride generation in banded coral skeletons /
dc.contributor.author | Tantreamjitmun, Napa. | en_US |
dc.date.accessioned | 2009-05-21T13:25:12Z | |
dc.date.available | 2009-05-21T13:25:12Z | |
dc.date.issued | 1997-05-21T13:25:12Z | |
dc.identifier.uri | http://hdl.handle.net/10464/1270 | |
dc.description.abstract | A flow injection hydride generation direct current plasma atomic emission spectrometric (FI-HG-DCP-AES) method was developed for the determination of lead at ng.ml-l level. Potassium ferricyanide (K3Fe(CN)6) was used along with sodium tetrahydroborate(III) (NaBH4) to produce plumbane (PbH4) in an acid medium. The design of a gas-liquid separator (hydride generator) was tested and the parameters of the flow injection system were optimized to achieve a good detection limit and sample throughput. The technique developed gave a detection limit of 0.7 ng.ml-l(3ob). The precision at 20 ng.ml"* level was 1.6 % RSD with 1 1 measurements (n=l 1). Volume of sample loop was 500 |J.l. A sample throughput of 120 h"^ was achieved. The transition elements, Fe(II), FeOH), Cd(n), Co(II), Mn(n), Ni(II) and Zn(n) do not interfere in this method but 1 mg,l'l Cu(II) will suppress 50 % of the signal from a sample containing 20 ng.ml'l Pb. This method was successfully applied to determine lead in a calcium carbonate (CaC03) matrix of banded coral skeletons from Si-Chang Island in Thailand. | en_US |
dc.language.iso | eng | en_US |
dc.publisher | Brock University | en_US |
dc.subject | Atomic emission spectroscopy. | en_US |
dc.subject | Hydrides. | en_US |
dc.subject | Scleractinia. | en_US |
dc.subject | Lead toxicology. | en_US |
dc.title | Flow injection analysis (FIA) determination of lead by hydride generation in banded coral skeletons / | en_US |
dc.type | Electronic Thesis or Dissertation | en |
dc.degree.name | M.Sc. Chemistry | en_US |
dc.degree.level | Masters | en_US |
dc.contributor.department | Department of Chemistry | en_US |
dc.degree.discipline | Faculty of Mathematics and Science | en_US |
refterms.dateFOA | 2021-08-07T02:11:59Z |