Show simple item record

dc.contributor.authorTantreamjitmun, Napa.en_US
dc.date.accessioned2009-05-21T13:25:12Z
dc.date.available2009-05-21T13:25:12Z
dc.date.issued1997-05-21T13:25:12Z
dc.identifier.urihttp://hdl.handle.net/10464/1270
dc.description.abstractA 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.isoengen_US
dc.publisherBrock Universityen_US
dc.subjectAtomic emission spectroscopy.en_US
dc.subjectHydrides.en_US
dc.subjectScleractinia.en_US
dc.subjectLead toxicology.en_US
dc.titleFlow injection analysis (FIA) determination of lead by hydride generation in banded coral skeletons /en_US
dc.typeElectronic Thesis or Dissertationen
dc.degree.nameM.Sc. Chemistryen_US
dc.degree.levelMastersen_US
dc.contributor.departmentDepartment of Chemistryen_US
dc.degree.disciplineFaculty of Mathematics and Scienceen_US
refterms.dateFOA2021-08-07T02:11:59Z


Files in this item

Thumbnail
Name:
Brock_Tantreamjitmun_Napa_1997.pdf
Size:
2.913Mb
Format:
PDF

This item appears in the following Collection(s)

Show simple item record