1909
DOI: 10.1002/ardp.19092470330
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Ueber die K. Lehmann'sche Titration von Zuckerarten

Abstract: e h m a n n .(Eingogangen den 11. X. 1909. I m Jahre 1854 ist von d e H a B ill) eine volumetrische Kupferbestimniung veroffentlicht worden, welche auf der Umsetzung zwischen Cupriion und Jodkalium bezw. der Titration des hierbei entbundenen Jods mit Thiosulfat beruht.Dieses iiberaus einfache, lange Zeit nur wenig beachtete Verfahren, ist in jiingster Zeit durch M o s e r2) sowie G 0 o c h und H e a t h3) eingehenden Priifungen unterworfen worden, durch welche dessen Vortrefflichkeit iibereinstimrnend darge… Show more

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Cited by 9 publications
(2 citation statements)
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“…The elevated temperature method of Kolthoff in the authors' hands was also unsatisfactory. Use of tartrate in the reaction mixture as proposed by Rupp (6) gave low results in the nearly neutral solution, but if acidified before the excess iodine was titrated the results were only slightly low. A precipitate of potassium acid tartrate caused the solution to become cloudy and interfered somewhat with the indicator reaction.…”
Section: Methodsmentioning
confidence: 99%
See 1 more Smart Citation
“…The elevated temperature method of Kolthoff in the authors' hands was also unsatisfactory. Use of tartrate in the reaction mixture as proposed by Rupp (6) gave low results in the nearly neutral solution, but if acidified before the excess iodine was titrated the results were only slightly low. A precipitate of potassium acid tartrate caused the solution to become cloudy and interfered somewhat with the indicator reaction.…”
Section: Methodsmentioning
confidence: 99%
“…They report fairly satisfactory data if the excess iodine in the bicarbonate-buffered solution is titrated with an arsenious reagent, provided the solution does not stand so long that iodate formation has taken place. In a second article Rupp (6) recommends the use of sodium potassium tartrate instead of bicarbonate. Muller and Diefenthaler were unsuccessful with this procedure also.…”
Section: Onementioning
confidence: 99%