Log in

Relevant bibliographies by topics / Flame Atomic Absorption Spectroscopy / Dissertations / Theses

To see the other types of publications on this topic, follow the link: Flame Atomic Absorption Spectroscopy.

Dissertations / Theses on the topic 'Flame Atomic Absorption Spectroscopy'

Author: Grafiati

Published: 5 June 2025

Last updated: 1 August 2025

Create a spot-on reference in APA, MLA, Chicago, Harvard, and other styles

Select a source type:

Consult the top 50 dissertations / theses for your research on the topic 'Flame Atomic Absorption Spectroscopy.'

Next to every source in the list of references, there is an 'Add to bibliography' button. Press on it, and we will generate automatically the bibliographic reference to the chosen work in the citation style you need: APA, MLA, Harvard, Chicago, Vancouver, etc.

You can also download the full text of the academic publication as pdf and read online its abstract whenever available in the metadata.

Browse dissertations / theses on a wide variety of disciplines and organise your bibliography correctly.

1

Simpson, Emma. "Attosecond transient absorption spectroscopy in atomic species." Thesis, Imperial College London, 2016. http://hdl.handle.net/10044/1/44970.

Full text

Abstract:

When high intensity laser light is focused into a gaseous target, high energy photons can be produced through the strongly nonlinear effect of high order harmonic generation. For a 30 fs, 800 nm or 1400 nm wavelength laser pulse, the result is a train of attosecond pulses produced at odd harmonic frequencies of the driving laser field, spanning energy ranges into the 100s eV. These attosecond pulses can access timescales characteristic to the movement of electrons in atoms, and by exploiting their properties as an ultrafast probe, electron dynamics in evolving atomic systems can be observed. T

APA, Harvard, Vancouver, ISO, and other styles

2

Conkey, Donald B. "On-Chip Atomic Spectroscopy." Diss., CLICK HERE for online access, 2007. http://contentdm.lib.byu.edu/ETD/image/etd1746.pdf.

Full text

APA, Harvard, Vancouver, ISO, and other styles

3

Adeeyinwo, Christina Eromowen. "Flow Injection Atomic Absorption Spectrometry : analytical characteristics of flame AAS." Thesis, Loughborough University, 1990. https://dspace.lboro.ac.uk/2134/32021.

Full text

Abstract:

Flow Injection (FI) techniques for use with Atomic Absorption Spectrometry (AAS) have attracted considerable research interest for sample introduction and calibration strategies. The interest continues in on-line preconcentration and matrix modification which are carried out by the incorporation of liquid-liquid extraction, ion-exchange, immobilised reagents, gas/vapour generation and continuous precipitation-filtration devices into suitably designed manifolds. Indirect determination of inorganic anions and organic compounds is becoming routine by FI–flame AAS. The direct analysis of solid sam

APA, Harvard, Vancouver, ISO, and other styles

4

Bysouth, Stephen R. "Standard and sample manipulation for calibration in flame atomic absorption spectrometry." Thesis, Loughborough University, 1988. https://dspace.lboro.ac.uk/2134/33128.

Full text

Abstract:

This thesis describes a study of existing calibration methods and a comparison of them, with novel calibration and sample pre-treatment methods for flame atomic absorption spectrometry (FAAS) developed by the author. A comparison of commercially available curve fitting algorithms was carried out to show how concentration errors arise and vary, due to the use of different empirical models for the calibration curve. Novel online dilution manifolds were designed. Using flow injection and continuous flow techniques, different calibration procedures were developed to allow null methods of calibrati

APA, Harvard, Vancouver, ISO, and other styles

5

O'Grady, C. E. "Fundamental research into aerosols for analytical atomic absorption spectroscopy." Thesis, University of Aberdeen, 1987. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.377568.

Full text

Abstract:

The material presented in this thesis falls into three main sections: 1) The measurement of nebulizer suction and its applications. Three methods of measurement of nebulizer suction were evaluated. The potential and limitations of each method was assessed. The most reliable and generally applicable method was measurement with a mercury manometer via a T-piece during aspiration, but after correction for suction drops along all the nebulizer capillaries and across connections. The measurement of suction was then applied to practical problems in AAS, i.e. the lack of dependence of signal on sampl

APA, Harvard, Vancouver, ISO, and other styles

6

Hutton, Jonathan Craig Carleton University Dissertation Chemistry. "Some theoretical and experimental studies in atomic absorption spectrometry." Ottawa, 1992.

Find full text

APA, Harvard, Vancouver, ISO, and other styles

7

French, Holly. "Trace metal analysis of street drugs by atomic absorption spectroscopy." Thesis, University of Kent, 2013. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.591083.

Full text

Abstract:

The aim of the study was to ascertain the capabilities of the graphite furnace atomic absorption spectroscopy (OF AAS) system to discriminate between the two separate ecstasy batches according to the differing concentrations of trace metals. Previous studies have utilised rcp techniques such as rCP-AES and rCP-MS to determine trace metal concentrations in ecstasy tablets with particular interest in potential synthesis marker metals such as Pt, B and Hg. Five metals: Cu, Ba, Ni, Cr and Ph were quantified with good repeatability and reproducibility. The selection of elements comprises of metals

APA, Harvard, Vancouver, ISO, and other styles

8

De, Jager Lionel Louis. "Permanent modifiers for electrothermal atomization atomic absorption spectometry." Diss., Access to E-Thesis, 2000. http://upetd.up.ac.za/thesis/available/etd-11162006-161158/.

Full text

APA, Harvard, Vancouver, ISO, and other styles

9

Karaman, Gamze. "Determination Of Silver By Slotted Quartz Tube Atom Trap Flame Atomic Absorption Spectrometry Using Metalcoatings." Master's thesis, METU, 2011. http://etd.lib.metu.edu.tr/upload/12613695/index.pdf.

Full text

Abstract:

Silver is a precious metal having antibacterial property and widely used in industry mostly for water purification and medicinal products. Therefore, the determination of trace levels of silver is important for industrial applications. Flame atomic absorption spectrometry (FAAS) is a popular technique for the determination of relatively low concentration levels. This mature technique owes its widespread application to its simplicity and low cost. However, for some occasions, FAAS technique suffers from its low sensitivity because of low nebulization efficiency and relatively short residence ti

APA, Harvard, Vancouver, ISO, and other styles

10

Thompson, Alexander W. J. "Multimode absorption spectroscopy of CO and CO₂ gas mixtures." Thesis, University of Oxford, 2013. http://ora.ox.ac.uk/objects/uuid:ebcb2031-1165-414e-88d8-69465bdaf291.

Full text

Abstract:

The development of multimode absorption spectroscopy (MUMAS) for multi-species detec- tion and its potential for process control or environmental monitoring is reported. The simultaneous detection of CO and CO2 is demonstrated in a proof-of-principle experiment for applications in industrially relevant gas species monitoring. The technique of MUMAS is extended to the near infrared in order to detect these and other industrially relevant species. A laser was designed and constructed to emit a multimode spectrum in the region of 1.57um to take advantage of the spectral overlap of the second vibr

APA, Harvard, Vancouver, ISO, and other styles

11

Lei, Tian. "Selenium speciation by high performance liquid chromatography -atomic absorption spectrometry." Thesis, McGill University, 1994. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=55507.

Full text

Abstract:

Selenium has been shown to have multiple biochemical effects ranging from nutrient deficiency at low levels to toxicity at high levels. This duality of concern has led to a demand for increased numbers of highly accurate and precise determinations of selenium in biological materials. A convenient procedure was developed for determining selenoamino acids by HPLC-THG-AAS, based on the derivatization of these analytes with Sanger's reagent. Selenomethionine, selenocystine and selenocysteine (after blocking the free selenol group with phenylmercurio cation) were converted to their N-2,4-dinitrophe

APA, Harvard, Vancouver, ISO, and other styles

12

Hendricks, Adam Gerald. "Determination of Flame Dynamics for Unsteady Combustion Systems using Tunable Diode Laser Absorption Spectroscopy." Thesis, Virginia Tech, 2003. http://hdl.handle.net/10919/36293.

Full text

Abstract:

Lean, premixed combustion has enjoyed increased application due to the need to reduce pollutant emissions. Unfortunately, operating the flame at lean conditions increases susceptibility to thermoacoustic (TA) instability. Self-excited TA instabilities are a result of the coupling of the unsteady heat release rate of the flame with the acoustics of the combustion chamber. The result is large pressure oscillations that degrade performance and durability of combustion systems. Industry currently has no reliable tool to predict instabilities a priori. CFD simulations of full-scale, turbulent,

APA, Harvard, Vancouver, ISO, and other styles

13

Chan, Mau Hing. "Photothermal deflection spectroscopy of novel electronic materials." HKBU Institutional Repository, 1996. http://repository.hkbu.edu.hk/etd_ra/66.

Full text

APA, Harvard, Vancouver, ISO, and other styles

14

Liang, Dong Cuan. "Development and characterization of atmospheric pressure radio frequency capacitively coupled plasmas for analytical spectroscopy." Thesis, University of British Columbia, 1990. http://hdl.handle.net/2429/30590.

Full text

Abstract:

An atmospheric pressure radio frequency capacitively coupled plasma (CCP) has been developed and characterized for applications in atomic emission spectrometry (AES), atomic absorption spectrometry (AAS) and gas chromatography (GC). The CCP torch was initially designed as an atom reservoir for carrying out elemental analysis using atomic absorption. Functionally, the device consists of two parts, the CCP discharge tube and the tantalum strip electrothermal vaporization sample introduction system. The torch design provides for very effective energy transfer from the power supply to the plasma

APA, Harvard, Vancouver, ISO, and other styles

15

Williams, Robert Hamilton. "Trace metals analysis using continuum source simultaneous multielement graphite furnace atomic absorption spectroscopy." Diss., The University of Arizona, 2000. http://hdl.handle.net/10150/284168.

Full text

Abstract:

A novel instrument for simultaneous multielement graphite furnace atomic absorption is described. This instrument employs a continuum light source and an echelle-charge injection device array detector system to achieve both simultaneous analysis of multiple wavelengths and true simultaneous background correction. The charge injection device detector also allows continuous wavelength coverage from 400-190 nm. Multichannel GFAAS analysis improves not only analytical speed but enables the use of elements resistant to matrix effects to assist in the identification of matrix effects in other elemen

APA, Harvard, Vancouver, ISO, and other styles

16

Erdem, Arzu Eroğlu Ahmet E. "Use Of Different Gold Amalgamation Techniques In Mercury Determination By Cold Vapor Atomic Absorption Spectrometry/." [s.l.]: [s.n.], 2005. http://library.iyte.edu.tr/tezler/master/kimya/T000354.pdf.

Full text

Abstract:

Thesis (Master)--İzmir Institute of Technology, İzmir, 2005.<br>Keywords: Mercury, atomic absorption spectrometry, gold, amalgamation, cold vapor. Includes bibliographical references (leaves 48-51).

APA, Harvard, Vancouver, ISO, and other styles

17

Yersel, Müşerref Eroğlu Ahmet E. thesis advisor. "Separation of trace antimony and arsenic prior to hydride generation atomic absortion spectrometric determination/." [s.l.]: [s.n.], 2005. http://library.iyte.edu.tr/tezler/master/kimya/T000392.pdf.

Full text

APA, Harvard, Vancouver, ISO, and other styles

18

Zayas-Cruz, Jorge I. "Studies on the atomization mechanism of selenium in graphite furnace atomic absorption spectrometry /." The Ohio State University, 1987. http://rave.ohiolink.edu/etdc/view?acc_num=osu148758688918748.

Full text

APA, Harvard, Vancouver, ISO, and other styles

19

Surdem, Sedat. "On-line Preconcentration, Speciation And Determination Of Chromium By Flame Atomic Absorption Spectrometry (faas) And Chemiluminescence (cl)." Master's thesis, METU, 2004. http://etd.lib.metu.edu.tr/upload/12604979/index.pdf.

Full text

Abstract:

ABSTRACT Toxicological studies have shown that the degree of toxicity of some elements depends on the chemical form in which the element is present. Chromium (III) is considered as an essential micronutrient for human whereas chromium (VI) is a potentially carcinogenic agent. So the speciation of inorganic chromium in environmental samples is required for accurate assessment of pollution levels. The chromium content in natural water is usually very low, and a preconcentration is often necessary prior to the determination. A sensitive and selective preconcentration and speciation procedure

APA, Harvard, Vancouver, ISO, and other styles

20

Demirtas, Ilknur. "Lead Determination By Flame Atomic Absorption Spectrometry Using A Slotted Quartz Tube Atom Trap And Metal Coatings." Master's thesis, METU, 2009. http://etd.lib.metu.edu.tr/upload/3/12610794/index.pdf.

Full text

Abstract:

Flame Atomic Absorption Spectrometry (FAAS) still keeps its importance despite the relatively low sensitivity<br>because it is a simple and economical technique for determination of metals. In recent years atom traps have been developed to increase the sensitivity of FAAS. Although the detection limit of FAAS is only at the level of mg/L, with the use of atom traps it can reach to ng/mL. Slotted quartz tube (SQT) is one of these atom traps, it is applied for determination of volatile elements<br>it is economical, commercially available and easy to use. In this study, a sensitive analytical met

APA, Harvard, Vancouver, ISO, and other styles

21

Osmanbasoglu, Mahmut. "Tellurium Determination By Flame Atomic Absorption Spectrometry Using A Slotted Quartz Tube Atom Trap And Metal Coatings." Master's thesis, METU, 2011. http://etd.lib.metu.edu.tr/upload/12613029/index.pdf.

Full text

Abstract:

Flame Atomic Absorption Spectroscopy (FAAS) has lover sensitivity than similar analytical methods, however it has an important place for analysis due to its easy application and economic practicability especially in metal determinations. In order to increase the sensitivity of FAAS from mg/L level to ng/L level, various atom trap systems have been used. One of these atom traps, Slotted Quartz Tube (SQT), which is easy, economical and useful for volatile element determination, is used in this study as a sensitive analytical method for determination of tellurium. In the study, determination of T

APA, Harvard, Vancouver, ISO, and other styles

22

Tasana, Nomalanga Gloria. "Optimisation and evaluation of boron analysis for pressurized Water reactor plants." Thesis, Cape Peninsula University of Technology, 2016. http://hdl.handle.net/20.500.11838/2328.

Full text

Abstract:

Thesis (MTech (Chemistry))--Cape Peninsula University of Technology, 2016.<br>Boron concentration analysis is an important and critical analysis performed by the Analytical Chemistry Laboratory at Koeberg Nuclear Power Station (KNPS), because boron controls reactivity and the concentration determination is a Technical Specification Parameter (safety parameter). Hence accurate, precise results for boron concentration produced by laboratories and on-line analysers are important because of their operational implications associated with reactivity control and also for nuclear safety. T

APA, Harvard, Vancouver, ISO, and other styles

23

Haider, Nazre. "The collisional behaviour of atomic carbon and germanium investigated by time-resolved resonance absorption spectroscopy." Thesis, University of Cambridge, 1995. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.308254.

Full text

APA, Harvard, Vancouver, ISO, and other styles

24

Marshall, P. "Kinetic studies of sodium atoms at elevated temperatures by time-resolved atomic resonance absorption spectroscopy." Thesis, University of Cambridge, 1985. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.355262.

Full text

APA, Harvard, Vancouver, ISO, and other styles

25

Sombers, Leslie A. "Determination of Trace Levels of Lead in Whole Blood by Graphite Furnace Atomic Absorption Spectroscopy." W&M ScholarWorks, 1998. https://scholarworks.wm.edu/etd/1539626166.

Full text

APA, Harvard, Vancouver, ISO, and other styles

26

Northern, Jonathen Henry. "Multi-species detection using Infrared Multi-mode Absorption Spectroscopy." Thesis, University of Oxford, 2013. http://ora.ox.ac.uk/objects/uuid:10f3bd62-4c81-4eaf-854d-1f388af73be9.

Full text

Abstract:

This thesis reports work extending the scope of a recently developed gas sensing technique, multi-mode absorption spectroscopy (MUMAS). The ability of MUMAS to simultaneously detect multiple species from a mixture is demonstrated for the first time. The technique is subsequently extended to mid-infrared wavelengths, realising large gains in sensitivity. A solid-state, multi-mode laser has been developed to provide a high-performance comb source for use with MUMAS. This in-house constructed, diode-pumped, Er/Yb:glass laser operates on 10 longitudinal modes, separated by 18 GHz and centred close

APA, Harvard, Vancouver, ISO, and other styles

27

曾令建 and Ling-kin Simon Tsang. "Graphite furnace capacitively coupled plasma atomic emission spectrometry in the determination of trace metals in biological andenvironmental samples." Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 1998. http://hub.hku.hk/bib/B31220009.

Full text

APA, Harvard, Vancouver, ISO, and other styles

28

Tsang, Ling-kin Simon. "Graphite furnace capacitively coupled plasma atomic emission spectrometry in the determination of trace metals in biological and environmental samples /." Hong Kong : University of Hong Kong, 1998. http://sunzi.lib.hku.hk/hkuto/record.jsp?B19737403.

Full text

APA, Harvard, Vancouver, ISO, and other styles

29

Wu, Shun. "Direct fiber laser frequency comb stabilization via single tooth saturated absorption spectroscopy in hollow-core fiber." Diss., Kansas State University, 2014. http://hdl.handle.net/2097/18373.

Full text

Abstract:

Doctor of Philosophy<br>Department of Physics<br>Kristan L. Corwin<br>Portable frequency references are crucial for many practical on-site applications, for example, the Global Position System (GPS) navigation, optical communications, and remote sensing. Fiber laser optical frequency combs are a strong candidate for portable reference systems. However, the conventional way of locking the comb repetition rate, frep, to an RF reference leads to large multiplied RF instabilities in the optical frequency domain. By stabilizing a comb directly to an optical reference, the comb stability can potenti

APA, Harvard, Vancouver, ISO, and other styles

30

Sealy, I. P. "A kinetic study of lead atoms at elevated temperatures by time-resolved atomic resonance absorption spectroscopy." Thesis, University of Cambridge, 1986. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.383938.

Full text

APA, Harvard, Vancouver, ISO, and other styles

31

Marchand, Bruno Carleton University Dissertation Chemistry. "Studies on matrix interferences and mechanisms of atomization of chromium in graphite furnace atomic absorption spectroscopy." Ottawa, 1987.

Find full text

APA, Harvard, Vancouver, ISO, and other styles

32

Bir, David J. "The development of a radio frequency plasma within a graphite furnace." Virtual Press, 1992. http://liblink.bsu.edu/uhtbin/catkey/834507.

Full text

Abstract:

Graphite Furnace Atomic Absorption Spectroscopy (GFAA) and Inductively Coupled Plasma Atomic Emission Spectroscopy (ICP-AES) are two primary means of analyzing metals at the elemental level. Both techniques are widely accepted as tools for basic research. Each technique is performed differently and has its own distinct advantages as well as disadvantages. The choice of which technique to employ is determined by the needs of the analysis and the limitations of the instrumental technique.The idea to merge the two techniques was originallydeveloped by the research group of Dr. Michael W. Blades o

APA, Harvard, Vancouver, ISO, and other styles

33

Ozcan, Gurbetoglu Pelin Gulistan. "Determination Of Cadmium Using Slotted Quartz Tube Atom Trap Atomic Absorption Spectrometry And Metal Coatings." Master's thesis, METU, 2010. http://etd.lib.metu.edu.tr/upload/12612212/index.pdf.

Full text

Abstract:

ABSTRACT DETERMINATION OF CADMIUM USING SLOTTED QUARTZ TUBE ATOM TRAP ATOMIC ABSORPTION SPECTROMETRY AND METAL COATINGS &Ouml<br>zcan Gurbetoglu, G. Pelin M.S., Department of Chemistry Supervisor: Prof. Dr. O. Yavuz Ataman July 2010, 76 pages Flame atomic absorption spectroscopy (FAAS) is a common technique for detecting metals and metalloids in environmental, biological and metallurgical samples. Although it is a rather old technique, it is still very reliable, simple to use and inexpensive. The technique can be used to determine the concentration of over 70 different metals in a soluti

APA, Harvard, Vancouver, ISO, and other styles

34

Basu, Subhash Chandra. "Reactions of Si and Ge atoms with unsaturated organic molecules by time-resolved atomic resonance absorption spectroscopy." Thesis, University of Cambridge, 1989. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.293497.

Full text

APA, Harvard, Vancouver, ISO, and other styles

35

André, Johansson. "A photodegradation study of conjugated polymers for organic solar cells by absorption spectroscopy and atomic force microscopy." Thesis, Karlstads universitet, Institutionen för ingenjörsvetenskap och fysik (from 2013), 2021. http://urn.kb.se/resolve?urn=urn:nbn:se:kau:diva-84049.

Full text

Abstract:

The effect of light exposure in ambient air on thin films made from an electron acceptor polymer poly{[N,N'-bis(2-octyldodecyl)naphthalene-1,4,5,8-bis(dicarboximide)-2,6-diyl]-alt-5,5'-(2,2'-bithiophene)} (N2200), an electron donor polymer Poly[[2,3-bis(3-octyloxyphenyl)-5,8-quinoxalinediyl]-2,5-thiophenediyl] (TQ1) and their blends, has been studied using UV-vis spectroscopy and Atomic Force Microscopy (AFM). For solutions of TQ1, N2200 and blends, the linearity of the Beer-Lambert law for absorption spectroscopy has been verified. The measured UV-vis spectra show that TQ1 thin films are more

APA, Harvard, Vancouver, ISO, and other styles

36

Chen, Xi 1970. "Quasi-stable slurries for the determination of trace elements by graphite furnace atomic absorption spectrometry." Thesis, McGill University, 2000. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=33386.

Full text

Abstract:

High-pressure homogenization using a new flat valve homogenizer in combination with enzymatic digestion with a crude protease was investigated as a means of releasing Se compounds from zoological and botanical matrices prior to slurry introduction GF-AAS. Timed trials with four zoological certified reference materials (CRMs), three botanical reference materials (RMs), and a food crop indicated that Se release was quantitative after homogenization or became quantitative within 1 h of digestion at 60°C.<br>The same technique was employed on five animal feed samples.<br>A new model of homogenizer

APA, Harvard, Vancouver, ISO, and other styles

37

Franklin, Dean E. "A novel approach to determine arsenic contamination in the environment /." Online version of thesis, 2007. http://hdl.handle.net/1850/5341.

Full text

APA, Harvard, Vancouver, ISO, and other styles

38

Stollar, Sarah. "A chemical investigation of the 18 day creation of lead oil /." Norton, MA : Wheaton College, 2008. http://hdl.handle.net/10090/5528.

Full text

APA, Harvard, Vancouver, ISO, and other styles

39

Liao, Chen-Ting, and Arvinder Sandhu. "XUV Transient Absorption Spectroscopy: Probing Laser-Perturbed Dipole Polarization in Single Atom, Macroscopic, and Molecular Regimes." MDPI AG, 2017. http://hdl.handle.net/10150/624358.

Full text

Abstract:

We employ an extreme ultraviolet (XUV) pulse to impulsively excite dipole polarization in atoms or molecules, which corresponds to coherently prepared superposition of excited states. A delayed near infrared (NIR) pulse then perturbs the fast evolving polarization, and the resultant absorbance change is monitored in dilute helium, dense helium, and sulfur hexafluoride (SF6) molecules. We observe and quantify the time-dependence of various transient phenomena in helium atoms, including laser-induced phase (LIP), time-varying (AC) Stark shift, quantum path interference, and laser-induced continu

APA, Harvard, Vancouver, ISO, and other styles

40

PACHECO, LUCIANA FERNANDES. "CO-SITE DIGITAL MICROSCOPY AND ATOMIC ABSORPTION SPECTROSCOPY IN THE ANALYSIS OF THE CHELATING EFFECT ON HUMAN DENTINE." PONTIFÍCIA UNIVERSIDADE CATÓLICA DO RIO DE JANEIRO, 2008. http://www.maxwell.vrac.puc-rio.br/Busca_etds.php?strSecao=resultado&nrSeq=12984@1.

Full text

Abstract:

PONTIFÍCIA UNIVERSIDADE CATÓLICA DO RIO DE JANEIRO<br>A partir dos anos 70 constatou-se a formação de uma massa aderida às paredes do canal radicular, após a instrumentação, que foi denominada smear layer. Esta camada é composta de material orgânico e inorgânico, tecido pulpar e bactérias, e contribui para obliterar os túbulos dentinários. A remoção desta camada melhora a adaptação entre o material obturador e as paredes dentinárias, elimina bactérias, limpa e alarga os túbulos. Essa remoção é realizada por soluções quelantes, mas a substância e o tempo ideais permanecem desconhecidos. Os quel

APA, Harvard, Vancouver, ISO, and other styles

41

Deeyamulla, Mahendra Priyantha. "Kinetic studies of ground state carbon atoms by time-resolved atomic resonance absorption spectroscopy in the vacuum ultraviolet." Thesis, University of Cambridge, 2005. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.614983.

Full text

APA, Harvard, Vancouver, ISO, and other styles

42

Gondim, Tamyris de Aquino. "Analytical Procedure Development paragraph Extraction and Pre - Iron Concentration in Production Water Samples Using Cloud Point Extraction and Atomic Absorption Spectrometry Flame." Universidade Federal do CearÃ, 2015. http://www.teses.ufc.br/tde_busca/arquivo.php?codArquivo=14630.

Full text

Abstract:

CoordenaÃÃo de AperfeÃoamento de Pessoal de NÃvel Superior<br>Produced water from petroleum industry is characterized by their high salinity and its complex composition. Depending on its origin, the produced water may contain a variety of chemicals such as organic salts, aliphatic hydrocarbons, polycyclic aromatic hydrocarbons (HPA), potentially toxic metals and radioactive materials. Therefore, the disposal of these production waters can be considered a major problem for the oil industry, since the produced water must be characterized and treated before being discarded at sea. This characteri

APA, Harvard, Vancouver, ISO, and other styles

43

Rebellato, Ana Paula 1977. "Biscoitos elaborados com farinhas de trigo fortificadas com ferro : teor do mineral e qualidade físico-química durante a estocagem." [s.n.], 2012. http://repositorio.unicamp.br/jspui/handle/REPOSIP/254642.

Full text

Abstract:

Orientador: Juliana Azevedo Lima-Pallone<br>Dissertação (mestrado) - Universidade Estadual de Campinas, Faculdade de Engenharia de Alimentos<br>Made available in DSpace on 2018-08-20T21:26:18Z (GMT). No. of bitstreams: 1 Rebellato_AnaPaula_M.pdf: 1287593 bytes, checksum: 661e828d074dab6ac68c3fad61029313 (MD5) Previous issue date: 2012<br>Resumo: No Brasil a ANVISA através da Resolução nº 344 de 2002, instituiu a obrigatoriedade do enriquecimento de farinhas de trigo e milho com ácido fólico e ferro. A deficiência de ferro é apontada como a principal causa da anemia ferropriva. A fortificação

APA, Harvard, Vancouver, ISO, and other styles

44

Knabe, Kevin. "Using saturated absorption spectroscopy on acetylene-filled hollow-core fibers for absolute frequency measurements." Diss., Manhattan, Kan. : Kansas State University, 2010. http://hdl.handle.net/2097/4126.

Full text

APA, Harvard, Vancouver, ISO, and other styles

45

Kuznetsova, Yelena Anatolyevna. "Atomic and nuclear interference phenomena and their applications." Texas A&M University, 2005. http://hdl.handle.net/1969.1/2428.

Full text

Abstract:

In this work, interference and coherence phenomena, appearing in atomic and molecular ensembles interacting with coherent light sources, as electromagnetically induced transparency (EIT), coherent population trapping (CPT), and slow group velocity of light are investigated. The goal of the project is to make the steps towards various applications of these phenomena, first, by studying them in solid media (which are the most advantageous for applications), second, by suggesting some novel applications such as CPT-based plasma diagnostics, and realization of new types of solid-state lasers (base

APA, Harvard, Vancouver, ISO, and other styles

46

Barrett, N. T. "Glancing angle X-ray absorption spectroscopy to investigate changes in the local atomic structure around uranium in leached glasses." Thesis, University of Strathclyde, 1987. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.382385.

Full text

APA, Harvard, Vancouver, ISO, and other styles

47

Siaka, I. Made, of Western Sydney Nepean University, and Faculty of Science and Technology. "The application of atomic absorption spectroscopy to the determination of selected trace elements in sediments of the Coxs River Catchment." THESIS_FST_XXX_Siaka_I.xml, 1998. http://handle.uws.edu.au:8081/1959.7/238.

Full text

Abstract:

An investigation of heavy metal concentrations in sediments from Coxs River catchment, a tributary of the Hawkesbury-Nepean River system, has been undertaken. A number of digestion methods were assessed for the determination of Pb, Cu, Cd, Zn, Ni, Mn, Fe, Co and Cr in reference materials by flame AAS. The method that produced the best recovery is reverse aqua regia, HNO3-HC1 with ultrasonification followed by heating on a hotplate. Based on analysis of sediments from 133 sites, background concentrations were established. Elevated heavy metal concentrations were recorded in some samples. The th

APA, Harvard, Vancouver, ISO, and other styles

48

Siaka, I. Made. "The application of atomic absorption spectroscopy to the determination of selected trace elements in sediments of the Coxs River Catchment." Thesis, View thesis, 1998. http://handle.uws.edu.au:8081/1959.7/238.

Full text

Abstract:

An investigation of heavy metal concentrations in sediments from Coxs River catchment, a tributary of the Hawkesbury-Nepean River system, has been undertaken. A number of digestion methods were assessed for the determination of Pb, Cu, Cd, Zn, Ni, Mn, Fe, Co and Cr in reference materials by flame AAS. The method that produced the best recovery is reverse aqua regia, HNO3-HC1 with ultrasonification followed by heating on a hotplate. Based on analysis of sediments from 133 sites, background concentrations were established. Elevated heavy metal concentrations were recorded in some samples. The th

APA, Harvard, Vancouver, ISO, and other styles

49

Siaka, I. Made. "The application of atomic absorption spectroscopy to the determination of selected trace elements in sediments of the Coxs River Catchment /." View thesis, 1998. http://library.uws.edu.au/adt-NUWS/public/adt-NUWS20030829.150226/index.html.

Full text

APA, Harvard, Vancouver, ISO, and other styles

50

余東民 and Tung-man Yu. "Graphite furnace: capacitively coupled plasma- atomic spectrometry and inductively coupled plasma - massspectrometry for the determination of silica and trace metals in water." Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 2002. http://hub.hku.hk/bib/B29911643.

Full text

APA, Harvard, Vancouver, ISO, and other styles

We offer discounts on all premium plans for authors whose works are included in thematic literature selections. Contact us to get a unique promo code!