1931
DOI: 10.1007/bf02714513
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Über Vakuumsublimation unter dem Mikroskop

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1932
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Cited by 7 publications
(2 citation statements)
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“…Such examinations should not require more than 1 mg. of material and the technic of Behrens (11), Chamot (28), Emich (41)(42)(43), and others (1-7) are of the widest applicability in this respect. The determination of the melting point of a solid organic substance is a micromethod in itself and can be augmented and sensitized as shown by Kofler (82)(83)(84), using a microscope provided with an electrical heating stage, thermocouples, and other implements promoting the accuracy of such determinations. For recrystallization and subsequent filtration the arrangements devised by Pregl (113)(114)(115) are suitable for amounts of material from 50 to .100 mg., with 20 mg. being about the lower limit.…”
Section: Microtechnic Of Isolation and Purificationmentioning
confidence: 99%
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“…Such examinations should not require more than 1 mg. of material and the technic of Behrens (11), Chamot (28), Emich (41)(42)(43), and others (1-7) are of the widest applicability in this respect. The determination of the melting point of a solid organic substance is a micromethod in itself and can be augmented and sensitized as shown by Kofler (82)(83)(84), using a microscope provided with an electrical heating stage, thermocouples, and other implements promoting the accuracy of such determinations. For recrystallization and subsequent filtration the arrangements devised by Pregl (113)(114)(115) are suitable for amounts of material from 50 to .100 mg., with 20 mg. being about the lower limit.…”
Section: Microtechnic Of Isolation and Purificationmentioning
confidence: 99%
“…These methods have been further developed to include quantitative analysis of amounts of a few y (146) and complete quantitative analysis of several elements in one single sample of a few milligrams weight (18-18, 66-68, 183). Quantitative microelectrolysis has received repeated attention (145) and the contributions of Clarke and co-workers (81)(82)(83)(84) are of wide interest. Quantitative microanalysis of gases (94) has been further studied and perfected (125).…”
mentioning
confidence: 99%