Quantification of titanium dioxide nanoparticles in environmental matricies

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dc.contributor.advisorCobb, George P.
dc.creatorWatkins, Preston S., 1990-
dc.date.accessioned2017-01-19T17:39:08Z
dc.date.available2017-01-19T17:39:08Z
dc.date.created2016-12
dc.date.issued2016-11-21
dc.date.submittedDecember 2016
dc.date.updated2017-01-19T17:39:09Z
dc.description.abstractA consistent analytical method incorporating sulfuric acid (H₂SO₄) digestion and ICP-MS quantification for titanium dioxide (TiO₂) was validated for 4 environmentally relevant matrices. The method provided Ti recoveries of 97 ± 2.5%, 91 ± 4.0%, 94 ± 1.8%, and 73 ± 2.6% (mean ± standard deviation) from water, fish tissue, periphyton, and sediment, respectively. Lower recoveries from sediment coincided with the percentage of sand in the sediments used for validation suggesting that unrecoverable Ti may be sequestered in the sand matrix. Our method was then used to quantify Ti in the the four validated matrices along four reaches in the North Bosque River Watershed. Ti concentrations ranged from 0 to 8 μg L^-1 in water, 45 to 526 μg g^-1 in sediment, 276 to 1520 μg g^-1 in periphyton, and 0 to 30 μg g^-1 in fish tissue. Ti concentrations in periphyton were significantly higher (p ˂0.001) than concentrations in other sample types, but were independent of distance from the effluent discharge.
dc.format.mimetypeapplication/pdf
dc.identifier.urihttp://hdl.handle.net/2104/9913
dc.language.isoen
dc.rights.accessrightsWorldwide access.
dc.rights.accessrightsAccess changed 6/7/19.
dc.subjectNanoparticle. Titanium dioxide.
dc.titleQuantification of titanium dioxide nanoparticles in environmental matricies
dc.typeThesis
dc.type.materialtext
local.embargo.lift2018-12-01
local.embargo.terms2018-12-01
thesis.degree.departmentBaylor University. Dept. of Environmental Science.
thesis.degree.grantorBaylor University
thesis.degree.levelMasters
thesis.degree.nameM.S.

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