Determination of mercury in hydrogen gas by cold vapour atomic absorption spectrometry

Determination of germanium by AAS in chloride-containing matrices Anwari, MA; Abbasi, HU; Volkan, Mürvet; Ataman, Osman Yavuz (1996-06-01) Interference effects of NaCl on the ET-AAS determination of Ge have been studied. The use of several matrix modifiers to alleviate this problem such as Ni and Zn perchlorates and nitrates, nitric acid, ammonium nitrate are reported. The stabilizing effect of Zn and Ni perchlorates allows the use of high pretreatment temperatures. NaCl is thus thermally volatilized from the atomizer by employing pretreatment temperatures higher than 1500 degrees C resulting in an improved sensitivity. Germanium levels in zin...
Determination of antimony by using a quartz atom trap and electrochemical hydride generation atomic absorption spectrometry Menemenlioglu, Ipek; Korkmaz, Deniz; Ataman, Osman Yavuz (2007-01-01) The analytical performance of a miniature quartz trap coupled with electrochemical hydride generator for antimony determination is described. A portion of the inlet arm of the conventional quartz tube atomizer was used as an integrated trap medium for on-line preconcentration of electrochemically generated hydrides. This configuration minimizes transfer lines and connections. A thin-layer of electrochemical flow through cell was constructed. Lead and platinum foils were employed as cathode and anode materia...
Determination and interference studies of bismuth by tungsten trap hydride generation atomic absorption spectrometry KULA, İBRAHİM; Arslan, Yasin; Bakirdere, Sugin; TİTRETİR DURAN, SERAP; Kenduezler, Erdal; Ataman, Osman Yavuz (2009-11-15) The determination of bismuth requires sufficiently sensitive procedures for detection at the mu g L-1 level or lower. W-coil was used for on-line trapping of volatile bismuth species using HGAAS (hydride generation atomic absorption spectrometry); atom trapping using a W-coil consists of three steps. Initially BiH3 gas is formed by hydride generation procedure. The analyte species in vapor form are transported through the W-coil trap held at 289 degrees C where trapping takes place. Following the preconcent...
Determination of indium by vapour generation atomic absorption spectrometry Özdemir, Erhan; Ataman, Osman Yavuz; Department of Chemistry (2014) Determination of indium is important due to its growing importance in semiconductor industry and health concerns in occupational area. Due to extremely low abundance of indium in the earth crust, very sensitive and accurate methods are needed for its determination. Vapour generation atomic absorption spectrometry is a fast and economical technique for determination of conventional hydride generation elements such as As, Bi, Ge, Pb, Sb, Se, Sn, Te. However, there are very limited number of studies conducted ...
Determination of water samples by electrothermal atomic absoption spectrometry Şimşek, Nail Engin; Ataman, Osman Yavuz; Department of Chemistry (2012) Boron (B) is a rare element on Earth crust with a natural abundance of 0.001%. However, boron content of water and soils may be significantly high in the regions with rich boron reserves. In addition, extensive use of agrochemicals in soils as well as various natural processes increases the boron concentration in water. Despite B is an essential element for all living creatures, it may pose risks at high level exposures. World Health Organization (WHO) has recommended a daily intake of 1 to 13 mg B for adul...

Citation Formats

E. Şen, “Determination of mercury in hydrogen gas by cold vapour atomic absorption spectrometry,” Ph.D. - Doctoral Program, Middle East Technical University, 1992.