Special apparatus for coating gas-phase capillary column
A capillary column and coating technology, applied in the direction of instruments, scientific instruments, measuring devices, etc., can solve the problems of easily damaged capillary, discontinuous coating of capillary column, low work efficiency, etc.
Inactive Publication Date: 2013-11-20
宋家玉
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Problems solved by technology
[0002] At present, there are no special instruments and equipment for capillary column coating in domestic gas chromatography analysis tests. Capillary column coating can only rely on a simple device made by the experimenter. The operation is complicated, difficult to control, easy to damage the capillary tube, and the coating of the capillary column is discontinuous. , the success rate is not high, and the work efficiency is low
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[0006] As shown in the accompanying drawing, it is a specific embodiment of the special instrument for gas-phase capillary column coating of the present invention. Including: bottom plate (1), vertical plate (2), nitrogen switch (3), flow regulating valve (4), air pressure gauge (5), capillary column (6), nitrogen inlet (7), coating tank (8) , sample bottle (9). Wherein the base plate (1) and the riser (2) are made of steel plate processing, the surface is chrome-plated to prevent rust, and the base plate (1) and the riser (2) are connected and fixed with screws. The sample bottle (9) is a glass bottle, which is placed in the coating tank (8) during use. There is a rubber pad at the bottom of the coating tank, and the coating tank (8) is fixed on the bottom plate ( 1) on. The nitrogen switch (3) is connected to the nitrogen cylinder, and then the air pressure and flow are adjusted through the flow regulating valve (4). Enter the coating tank (8); the coating tank (8), vario...
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The invention provides a special apparatus for coating a gas-phase capillary column for a chromatographic analysis test, which is simple in structure, convenient to operate, safe and reliable, and has the characteristics of low manufacture cost, compact layout of parts and high maneuverability. The special apparatus comprises a bottom plate (1), a vertical plate (2), a nitrogen switch (3), a flow regulating valve (4), a gas pressure meter (5), the capillary column (6), a nitrogen inlet (7), a coating groove (8) and a sample bottle (9), wherein the bottom plate (1) and the vertical plate (2) are made of steel plates, and chrome-faced to be prevented from being rusted, and the coating groove (8) and various pipe joints and a nitrogen conveying capillary are made of stainless steel materials. The nitrogen switch (3) is connected with a nitrogen bottle, the gas pressure and the flow are regulated through the flow regulating valve (4), nitrogen enters the coating groove (8) through the nitrogen inlet (7) in the side surface of the upper part of the coating groove (8), and is subjected to gradual pressure regulation to reach a proper pressure and flow, and a sample material is pressed in the capillary column from the sample bottle for coating the capillary column.
Description
(1) Technical field [0001] The invention relates to a gas-phase capillary column coating special instrument, in particular to a gas-phase capillary column coating special equipment instrument with simple structure, convenient operation, safety and reliability for chromatographic analysis test, belonging to the technical field of chemical analysis equipment. (2) Background technology [0002] At present, there are no special instruments and equipment for capillary column coating in domestic gas chromatography analysis tests. Capillary column coating can only rely on a simple device made by the experimenter. The operation is complicated, difficult to control, easy to damage the capillary tube, and the coating of the capillary column is discontinuous. , the success rate is not high, and the work efficiency is low. (3) Contents of the invention [0003] In order to make up for the deficiencies of the prior art, the present invention provides a special gas-phase capillary colum...
Claims
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IPC IPC(8): G01N30/56
Inventor 宋家玉刘玫曹一帆
Owner 宋家玉