SU290193A1 - - Google Patents
Info
- Publication number
- SU290193A1 SU290193A1 SU1335243A SU1335243A SU290193A1 SU 290193 A1 SU290193 A1 SU 290193A1 SU 1335243 A SU1335243 A SU 1335243A SU 1335243 A SU1335243 A SU 1335243A SU 290193 A1 SU290193 A1 SU 290193A1
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- cup
- evaporation
- shape
- rotation
- dissolved
- Prior art date
Links
- 238000001704 evaporation Methods 0.000 description 5
- 239000002904 solvent Substances 0.000 description 3
- 239000000126 substance Substances 0.000 description 2
- 150000001413 amino acids Chemical class 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 239000003456 ion exchange resin Substances 0.000 description 1
- 229920003303 ion-exchange polymer Polymers 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000002244 precipitate Substances 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
Description
Изобретение относитс к лабораторному оборудованию, а именно к чашкам дл выпаривани . Известна чашка дл выпариваии с полусферической формой неудобна при хроматографическом определении веш;еств, иаход щихс в €меси с чрезвычайно низкой концентрацией . В частности, -при применепии ионообменных смол дл очистки аминокислот, наход шихс в биологических жидкост х, приходитс выпаривать 40-50 мл элюата, а сухой остаток р.аствор ть в 0,1-0,2 мл растворител . Учитыв а , что в примен емых чашках осадок занимает на дне сравнительно большую поверхность, его практически невозможно полностью «сн ть таким небольшим количеством растворител и значительное количество веш,ества тер етс . Увеличение же количества растворител затрудн ет нанесение пробы на хроматограмму, увеличива затраты времени. Целью изобретени вл етс возможность выпаривани раствора с низкой концентрацией растворенного веш,;ества. Дл этого внутренн поверхность чашки выполнена з форме пара;болоида вращенИЯ с углублением в донной части. Кроме того, чашка имеет опорную плоскость. На чертеже показана предлагаема чашка в р-азрезе. Внешние и внутренние поверхности стенок 1 чашки изготовлепы в форме параболоида вращени . Дно внутри чашки имеет углубление 2 (например 0,3 с.п). Чашка снабжена опорной плоскостью 3 дл устойчивого иоложени на рабочей плоскости. Таким образом, указанна форма чашки позвол ет проводить выпаривание раствора с низкой концентрацией растворенного веш,ества с последующим растворением осадка этого вещества небачьшим объемом жидкости . Предмет изобретени 1.Чашка дл выпаривани , отличающа с тем, что, с целью обеспечени возможности Быиарпвани раствора с Н изкой концентрацией растворенного вещества, внутренн поверхность ее выполнена в фор.ме параболоида вращени с углублением в донной части. 2.Чашка по п. 1, отличающа с тем, что она имеет опорную плоскость.The invention relates to laboratory equipment, namely, evaporation dishes. The famous evaporation cup with a hemispherical shape is inconvenient for the chromatographic determination of substances that are extremely low-concentration mixtures. In particular, when using ion-exchange resins for the purification of amino acids found in biological fluids, 40-50 ml of eluate must be evaporated, and the dry residue p. Dissolved in 0.1-0.2 ml of solvent. Taking into account that in the used cups the sediment occupies a relatively large surface at the bottom, it is almost impossible to completely "remove such a small amount of solvent and a significant amount of suspended matter is lost. Increasing the amount of solvent makes it difficult to apply a sample to the chromatogram, increasing the time required. The aim of the invention is the possibility of evaporating a solution with a low concentration of dissolved vesch,; For this, the inner surface of the cup is made in the form of a vapor; boloid of rotation with a recess in the bottom part. In addition, the cup has a reference plane. The drawing shows the proposed cup in p-cutting. The outer and inner surfaces of the walls 1 of the cup are made in the shape of a paraboloid of rotation. The bottom inside the cup has a recess 2 (for example, 0.3 cp). The cup is provided with a supporting plane 3 for a stable position on the working plane. Thus, this cup shape allows for the evaporation of a solution with a low concentration of dissolved matter, followed by dissolving the precipitate of this substance with a poor volume of liquid. Subject of the invention 1. An evaporation cup, characterized in that, in order to allow the solution to be heated with a H solute concentration, its inner surface is made in the shape of a paraboloid of rotation with a depression in the bottom part. 2. A cup according to claim 1, characterized in that it has a reference plane.
Publications (1)
Publication Number | Publication Date |
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SU290193A1 true SU290193A1 (en) |
Family
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Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4372543A (en) * | 1981-05-14 | 1983-02-08 | Gardiner Philip M | Cupel |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4372543A (en) * | 1981-05-14 | 1983-02-08 | Gardiner Philip M | Cupel |
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