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Небесная энциклопедия

Космические корабли и станции, автоматические КА и методы их проектирования, бортовые комплексы управления, системы и средства жизнеобеспечения, особенности технологии производства ракетно-космических систем

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Применить Всего найдено 2. Отображено 2.
09-04-1992 дата публикации

Impregnation of capillary column - in which charge of impregnating soln. is forced through capillary column at constant speed

Номер: DE0004031736A1
Автор: KRATZSCH THOMAS DIPL CHEM, PROSS STEFFI DIPL ING, KRATZSCH, THOMAS, DIPL.-CHEM., O-7024 LEIPZIG, DE, PROSS, STEFFI, DIPL.-ING., O-7030 LEIPZIG, DE
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Capillary tubes made from long sections after the dynamic method for the gas chromatographic sepn. of mixtures of materials, have a thin film of sepn. fluid applied to the inner capillary surface. The novelty is that a charge of the impregnating soln. is forced through the capillary column at a constant speed, at the entrance of which a buffer vessel with defined vol. is connected which is pressurised to a given value; that the initial vol. of the buffer vessel is given by equation (I), that the initial pressure in the buffer vessel is given by equation (II) where: d is the capillary internal dia. (mm); df is the film thickness in the stationary phase (mm).

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Номер записи: 1
09-04-1992 дата публикации

Impregnation of capillary column - has thin film of sepn. fluid applied to inner capillary surface

Номер: DE0004031700A1
Автор: KRATZSCH THOMAS DIPL CHEM, PROSS STEFFI DIPL ING, KRATZSCH, THOMAS, DIPL.-CHEM., O-7024 LEIPZIG, DE, PROSS, STEFFI, DIPL.-ING., O-7030 LEIPZIG, DE
Принадлежит:

Capillary tubes made from long sections after the dynamic method for the gas chromatographic sepn. of mixts. of materials, have a thin film of sepn. fluid applied to the inner capillary surface. The novelty is that a charge of the impregnating soln. is forced through the capillary column at a constant speed, at the entrance of which a buffer vessel with defined volume is connected which is pressurised to a given value; that the initial volume of the buffer vessel is given by equation (I), that the initial capillary pressure is given by equation (II), and that the length of the charge is less than 10% of the length of the entire capillary tube. In the equations d is the capillary internal dia. (mm); L is the length of the capillary column; L2 is the length of the fluid charge at the commencement of impregnation (mm); Pi is the initial capillary pressure (MPa); PL is air pressure (MPa); Po is the pressure at conclusion of impregnation (MPa); P(L2) is the pressure in the capillary at length ...

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Номер записи: 2