Uçucu organik bileşikler için pasif örnekleme tüplerinin tutma sabitlerinin belirlenmesi

Development of novel analytical methods for selenium, gold, silver and indium determination using volatile compound generation, atom trapping and atomic absorption spectrometry Arslan, Yasin; Ataman, Osman Yavuz; Department of Chemistry (2011) A novel analytical technique was developed where gaseous hydrogen selenide formed by sodium tetrahydroborate reduction is transported to and trapped on a resistively heated gold-coated W-coil atom trap for in situ preconcentration. The atom trap is held at 165 ºC during the collection stage and is heated up to 675 ºC for revolatilization; analyte species formed are transported to an externally heated quartz T-tube where the atomization takes place and the transient signal is obtained. For gold, a high volum...
Effects of fly ash and desulphogypsum on the strength and permeability properties of Çayırhan soil Şahin, Murat; Çokça, Erdal; Department of Civil Engineering (2005) Çayırhan soil is a collapsible soil. Collapsible soils are generally unsaturated, low-density soils with high voids between grains where the binding agents are sensitive to saturation. When exposed to water, binding agents break, soften or dissolve such that the soil grains shear against each other and reorient in denser configurations. This reconfiguration causes a net decrease in the soil mass, resulting in large and often unexpected settlements, which can totally destroy roads, underground utilities, and...
Preconcentration of volatile elements on quartz surface prior to determination by atomic spectrometry Korkmaz, Deniz; Ataman, Osman Yavuz; Department of Chemistry (2004) Hydride generation technique is frequently used for the detection of elements as As, Se, Sb, Sn, Bi, Ge, Te and Pb that form volatile hydrides in solution using a reductant. In this study, a novel quartz trap for on-line preconcentration of volatile analyte species was designed. Pb, Sb and Cd were selected as analyte elements and chemical vapour generation technique was employed for generation of their volatile species in flow systems. The trapping medium was formed by external heating of either the inlet a...
Effects of fly ash and desulphogypsum on the geotechnical properties of çayırhan soil Baytar, Ali Özgür; Çokça, Erdal; Department of Civil Engineering (2005) Collapse in soils occur when a partially unstable, partially saturated open fabric under high enough stress causing a metastable structure with large soil suction, or in the presence of a bonding or cementing agent, is allowed to free access to additional water. Such excess water reduces soil suction and weakens or destroys the bonding, this causing shear failure at the interaggregate or intergranular contacts, consequently, the soil collapses. In this study, the collapsible soils found in the Çayirhan Ther...
Evaluation of air void parameters of fly ash incorporated self consolidating concrete by image processing Özerkan, Nesibe Gözde; Yaman, İsmail Özgür; Department of Civil Engineering (2009) Self consolidating concrete (SCC) is defined as an innovative concrete that does not require vibration for placing and compaction and it is able to flow under its own weight, completely filling formwork and achieving full compaction. Although significant amount of research has been carried out regarding the fresh properties, mix design, placing methods and strength of various SCC mixes, only a very limited amount of work has been done to assess the durability performance of SCC. Concretes in cold climates a...

Citation Formats

S. G. Tuncel, “Uçucu organik bileşikler için pasif örnekleme tüplerinin tutma sabitlerinin belirlenmesi,” 2009. Accessed: 00, 2020. [Online]. Available: https://app.trdizin.gov.tr/publication/project/detail/TVRBME5qWTI.