1953
DOI: 10.1021/ac60083a025
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Automatic Combustion Apparatus for Determination of Sulfur and Halogen

Abstract: In order to achieve the advantages of automatic operation, an automatic quartz tube oomhustion apparatus has been developed for the determination of sulfur and halogens in organic materials. The sample is vaporized in a stream of nitrogen and combustion occurs in the high temperature zone of the combustion tube, where a stream of oxygen is injected. A thermooouple, located just beyond the point at which oxygen is introduced, senses the heat generated by the combustion of the sample vapors and controls the amou… Show more

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Cited by 17 publications
(8 citation statements)
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“…According to the pyrohydrolysis concept, chlorine release from the sample at high temperatures is thermodynamically possible in the presence of water vapour, where hydrochloric acid is formed. 12 However, in some studies 32,33 sample preparation was performed in the absence of water. In the present work, tests were carried out to evaluate the effect of water vapour on chlorine release.…”
Section: Influence Of Water Vapourmentioning
confidence: 99%
“…According to the pyrohydrolysis concept, chlorine release from the sample at high temperatures is thermodynamically possible in the presence of water vapour, where hydrochloric acid is formed. 12 However, in some studies 32,33 sample preparation was performed in the absence of water. In the present work, tests were carried out to evaluate the effect of water vapour on chlorine release.…”
Section: Influence Of Water Vapourmentioning
confidence: 99%
“…The automatic combustion furnace has been described by White et al (11)•, slight modifications for the present purpose are discussed below. A block diagram of the new detection system is shown in Figure 1.…”
Section: Description Of Apparatusmentioning
confidence: 99%
“…Furnace. The automatic furnace (11) used for combustion was built from plans kindly supplied by the Shell Development Co., with a few minor modifications. For example, a switch was added to the 2-minute program controller allowing extension of the final 2-minute burn-out period, and the bubbler was not used because our vacuum line opened to the atmosphere.…”
Section: Description Of Apparatusmentioning
confidence: 99%
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“…An automatic combustion apparatus for determining sulfur and halogen is available in which a sample is vaporized in a stream of nitrogen and combustion occurs in the high temperature zone of the combustion tube, where a stream of oxygen is injected (154). An operator can complete 15 to 25 analyses in an 8-hour day.…”
Section: Chemical Analysismentioning
confidence: 99%