CN102901785B - Temperature uniformizer integrating multiple chromatographic columns with different lengths and diameters - Google Patents
Temperature uniformizer integrating multiple chromatographic columns with different lengths and diameters Download PDFInfo
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- CN102901785B CN102901785B CN201210403661XA CN201210403661A CN102901785B CN 102901785 B CN102901785 B CN 102901785B CN 201210403661X A CN201210403661X A CN 201210403661XA CN 201210403661 A CN201210403661 A CN 201210403661A CN 102901785 B CN102901785 B CN 102901785B
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Abstract
The invention discloses a temperature uniformizer integrating multiple chromatographic columns with different lengths and diameters. An upper metal heat conducting block and a lower metal heat conducting block are linked with each other through a hinge and respectively provided with multiple upper semicircular chromatographic column grooves and multiple lower semicircular chromatographic column grooves, wherein one or more groups of metal inner casings are respectively placed in each upper semicircular chromatographic column groove and each lower semicircular chromatographic column groove, one or more groups of metal outer casings are sheathed outside each metal inner casing, the inner diameter of the metal inner casing is the same as the outer diameter of a body of the chromatographic column placed in the metal inner casing, the outer diameter of the metal outer casing is greater than or equal to that of a head of the chromatographic column, and the length of the upper semicircular chromatographic column groove and the lower semicircular chromatographic column groove is greater than that of the chromatographic column. The temperature uniformizer is reasonable in structure, and can be used for improving the heat conducting efficiency of a thermotank of a high performance liquid chromatograph (HPLC), shortening the heat balance time of the thermotank, and maintaining the consistency, stability and uniformity of the working temperature of the chromatographic columns.
Description
Technical field
The present invention relates to the temperature homogenizer that many root chromatogram columns in a kind of different length used and post footpath are integrated in High Performance Liquid Chromatography post constant temperature oven.
Background technology
The multidimensional high performance liquid chromatography is to utilize the chromatographic column of two or many different in kinds to be separated the component in complex sample.In the detection of multidimensional high performance liquid chromatography, sample first carries out pre-separation in the first dimension chromatographic column, then will proceed to through all or part of compositional selecting ground of pre-separation separately further separation in one or more dissimilar chromatographic column.The multidimensional high-efficient liquid phase chromatogram technology has sample is carried out to pre-service, and the function of separation and concentration can improve the separating power of high performance liquid chromatograph, can from complicated various ingredients, get rid of interfering material, for required component, is analyzed selectively.
The chromatographic column that high performance liquid chromatograph uses has the different length specifications such as 100mm, 150mm, 200mm, 250mm and 300mm usually, also has the different post footpath specifications such as 4mm, 5mm, 10mm, 15mm, 20mm and 30mm in the chromatographic column of same length.In the analytical test of multidimensional high performance liquid chromatography, people also can face the situation that need to simultaneously use many different lengths and different posts footpath chromatographic column.The working temperature of many different lengths and different posts footpath chromatographic column correctly is set, keep the post consistent, that stablize and evenly can improve chromatographic column of many different lengths and different posts footpath chromatographic column working temperature to imitate, improve and respectively measure the degree of separation of material chromatographic peak and the symmetry of peak shape, shorten the retention time of measured matter in chromatographic column, reducing the chromatographic column post presses, reduce the wearing and tearing of high performance liquid chromatograph pump, improve accuracy and the repeatability of sample analysis result.
When the chromatographic column of using many different lengths and different posts footpath is carried out the analytical test of multidimensional high performance liquid chromatography, people set and stablize the working temperature of these different lengths and different posts footpath chromatographic column usually with the chromatographic column constant temperature oven of high performance liquid chromatograph.Yet its principle of heating of chromatographic column constant temperature oven of high performance liquid chromatograph is to rely on the bottom electric-heating-wire-heating, air heat conduction is slow.The chromatographic column constant temperature oven of fan-free, hot-air can't circulative convection, and while causing heating, bottom temp is higher, and chromatographic column constant temperature oven head temperature is lower, causes heating of chromatographic column inhomogeneous.Independent place of the chromatographic column in different length and different posts footpath in High Performance Liquid Chromatography post constant temperature oven, also can cause the inconsistent of these chromatographic column working temperatures.In addition, in the high performance liquid chromatography testing process, mobile phase ceaselessly flows in chromatographic system, and this will make the temperature of chromatographic column mobile phase porch and the temperature in exit produce certain temperature difference.Above-mentioned these cause inconsistent, the unstable and inhomogeneous factor of chromatographic column working temperature can affect accuracy and the repeatability of multidimensional efficient liquid phase chromatographic analysis.
American documentation literature US5983710A discloses a kind of constant temperature device for ion chromatographic column, and the structures such as heating fast assembly, chromatographic column groove are arranged, but that its structure can not realize the chromatographic column working temperature in many different lengths and post footpath is consistent, stable and even.
Summary of the invention
The object of the present invention is to provide a kind of in High Performance Liquid Chromatography post constant temperature oven, use rational in infrastructure, keep the chromatographic column working temperature in many different lengths and post footpath consistent, temperature homogenizer that many root chromatogram columns stable and different length and post footpath uniformly are integrated.
Technical solution of the present invention is:
The temperature homogenizer that many root chromatogram columns in a kind of different length and post footpath are integrated, it is characterized in that: comprise a metal heat-conducting piece, lower metal heat-conducting piece, upper slice metal heat-conducting piece, lower metal heat-conducting piece pass through hinge links, on upper slice metal heat-conducting piece, lower metal heat-conducting piece, many upper semi-circle shape chromatographic column grooves and many lower semi-circular chromatographic column grooves are set respectively, and upper semi-circle shape chromatographic column groove is identical with the quantity of lower semi-circular chromatographic column groove, the corresponding setting in position, place respectively one or more groups inner metal sleeve pipe in every upper semi-circle shape chromatographic column groove and lower semi-circular chromatographic column groove, the total length of inner metal sleeve pipe equals by the length of obvolvent chromatographic column cylinder, one group of metal jacket pipe identical with this group inner metal sleeve length of tube of every group of outer suit of inner metal sleeve pipe, every group of first circular inner metal sleeve pipe that the inner metal sleeve pipe is identical by a pair of length, lower semi-circular inner metal sleeve pipe forms, every group of first circular metal jacket pipe that metal jacket pipe is identical by a pair of length, the lower semi-circular metal jacket pipe forms, first circular inner metal sleeve pipe, the external arc of lower semi-circular inner metal sleeve pipe respectively with first circular metal jacket pipe, the interior circular arc of lower semi-circular metal jacket pipe coincide, first circular metal jacket pipe, the external arc of lower semi-circular metal jacket pipe respectively with upper semi-circle shape chromatographic column groove, the interior circular arc of lower semi-circular chromatographic column groove coincide, the form that the inner metal sleeve pipe is choice for use, when the external diameter of the internal diameter of metal jacket pipe and the chromatographic column cylinder that needs to place is identical, only use metal jacket pipe, when the internal diameter of metal jacket pipe is greater than the external diameter of the chromatographic column cylinder that needs placement, increases and use the inner metal sleeve pipe, the external diameter of metal jacket pipe is more than or equal to the external diameter of chromatographic column column cap, the length of upper semi-circle shape chromatographic column groove and lower semi-circular chromatographic column groove is greater than chromatogram column length, the metal jacket pipe total length that in every upper semi-circle shape chromatographic column groove and lower semi-circular chromatographic column groove, one or more groups metal jacket pipe forms equals to need the length of the chromatographic column cylinder placed.
The identical length of upper slice metal heat-conducting piece, lower metal heat-conducting piece, many upper semi-circle shape chromatographic column grooves, many lower semi-circular chromatographic column grooves with.
On upper metal heat-conducting piece, set temperature homogenizer upper slice has contact with, and on lower metal heat-conducting piece, under the set temperature homogenizer, sheet has contact with post, lower have contact with post and upper slice have contact with and be used in conjunction with.
Described chromatographic column comprises the cylinder of chromatographic column centre and the column cap part at chromatographic column two ends.
The present invention is rational in infrastructure, and its main structure is metal heat-conducting piece and the inside and outside semicircle metal sleeve of chromatographic column with multipair semicircle chromatographic column groove that can obvolvent.In the test of multidimensional efficient liquid phase chromatographic analysis, we use the semicircle metal jacket pipe of the chromatographic column of this temperature homogenizer, just can allow the chromatographic column of different length be placed in same chromatogram column temperature homogenizer.We add with the semicircle inner metal sleeve pipe of the chromatographic column of this temperature homogenizer, just can allow the chromatographic column in different posts footpath also can be placed in same chromatogram column temperature homogenizer.Visible, by the semicircle metal inner and outer sleeve pipe of the chromatographic column that is combined with this temperature homogenizer, just can make many root chromatogram columns in different length and different posts footpath be placed in same chromatogram column temperature homogenizer, and guarantee the cylinder of chromatographic column and the semicircle inner metal sleeve pipe of chromatographic column or outer tube, the close contact of the semicircle inner metal sleeve pipe of chromatographic column and outer tube, semicircle metal jacket pipe and temperature homogenizer upper slice, lower metal heat-conducting piece semicircle chromatographic column groove.Thereby make cylinder and this temperature homogenizer metal heat-conducting piece of the chromatographic column in many different lengths and different posts footpath combine closely in aggregates.
The temperature homogenizer be integrated when many root chromatogram columns in above-mentioned different length and post footpath and High Performance Liquid Chromatography post constant temperature oven merge while using, the thermal conductive resin of its metal of temperature homogenizer be integrated because of many root chromatogram columns in different length and post footpath and with the close contact of High Performance Liquid Chromatography post constant temperature oven, can promote high performance liquid chromatograph constant temperature oven heat transfer efficiency, shorten its thermally equilibrated time, and keep the consistent, stable and even of chromatographic column working temperature.
This temperature homogenizer of the present invention can help to overcome the limitation of existing High Performance Liquid Chromatography post constant temperature oven, keeps the consistent, stable and even of many different lengths and different posts footpath chromatographic column working temperature.When using this temperature homogenizer, we first, according to the post footpath of chromatographic column, determine whether to use inner sleeve.As the chromatographic column external diameter of selecting is less than the outer tube internal diameter, with two inner sleeves, be first just a section of one group of obvolvent chromatographic column cylinder, the cylinders of the mode next tight obvolvent whole chromatographic column from beginning to end with each group inner sleeve with many group inner sleeves.The many groups of the outer obvolvent again of inner sleeve outer tube from beginning to end.As the chromatographic column external diameter of selecting equals the internal diameter of outer tube, direct cylinders of the next whole chromatographic column of tight obvolvent of mode from beginning to end with each group outer tube with many group outer tubes just.The cylinder of chromatographic column by inner sleeve+outer tube or outer tube obvolvent after, the column cap of chromatographic column is stayed outside the two ends of inside and outside sleeve pipe of obvolvent chromatographic column cylinder not by obvolvent, and inner sleeve is equated with the total length of outer tube.Because the external diameter of outer tube is identical with the diameter of the fast semicircle chromatographic column groove of temperature homogenizer metal heat-conducting, and be more than or equal to the external diameter of chromatographic column column cap, the column cap of chromatographic column just can not affect the heat conduction upper slice of temperature homogenizer, the obvolvent of lower.And form while using inner sleeve the close contact of the semicircle chromatographic column groove of chromatographic column cylinder and inner sleeve, inner sleeve and outer tube, outer tube and temperature homogenizer.While not using inner sleeve, the close contact of the semicircle chromatographic column groove of chromatographic column cylinder and outer tube, outer tube and temperature homogenizer.
So, the chromatographic column in different length and different posts footpath (comprising the column cap part) can be placed in by the temperature homogenizer heat conduction upper slice of obvolvent, lower each cylindrical space that obvolvent forms, and the difference that the different length chromatographic column is placed in the cylindrical space only is the length of their two ends redundant spaces in each cylindrical space.Whether the difference of the chromatographic column in different posts footpath just is to add uses inner sleeve.It is in aggregates that final result is that these chromatographic column cylinders can pass through chromatographic column+inner sleeve+outer tube or chromatographic column+outer tube and metal heat-conducting piece close contact.
The temperature homogenizer be integrated when many root chromatogram columns in different length of the present invention and post footpath and High Performance Liquid Chromatography post constant temperature oven merge while using, because of the thermal conductive resin of this its metal of temperature homogenizer and with the close contact of high performance liquid chromatograph constant temperature oven, can eliminate above-mentioned independent use High Performance Liquid Chromatography post constant temperature oven keep the chromatographic column working temperature consistent, stable and evenly aspect limitation, improve the efficiency of multidimensional efficient liquid phase chromatographic analysis.
The accompanying drawing explanation
Below in conjunction with drawings and Examples, the invention will be further described.
Fig. 1 is the structural representation of one embodiment of the invention.
Fig. 2 is the semicircle metal jacket pipe schematic perspective view of chromatographic column.
Fig. 3 is the semicircle inner metal sleeve pipe of chromatographic column schematic perspective view.
In figure: (the temperature homogenizer that many root chromatogram columns in different length and post footpath are integrated is hereinafter to be referred as the temperature homogenizer; The semicircle metal jacket pipe of chromatographic column is hereinafter to be referred as outer tube; The semicircle inner metal sleeve pipe of chromatographic column is hereinafter to be referred as inner sleeve)
1. temperature homogenizer upper slice has contact with: have contact with post with sheet under the temperature homogenizer and be used in conjunction with, obvolvent temperature homogenizer.
2. upper slice metal heat-conducting piece of temperature homogenizer: quick conductive, evenly by the temperature of obvolvent chromatographic column.
3. first of the temperature homogenizer upper slice semicircle chromatographic column groove: when the obvolvent of temperature homogenizer, with the semicircle chromatographic column groove of first time sheet of temperature homogenizer, form the cylindrical space of placing by the first chromatographic column of outer tube (when the internal diameter of the external diameter of chromatographic column cylinder and outer tube is identical) or outer tube+inner sleeve (when the external diameter of chromatographic column cylinder is less than the internal diameter of outer tube) obvolvent.
4. second of the temperature homogenizer upper slice semicircle chromatographic column groove: when the obvolvent of temperature homogenizer, with the semicircle chromatographic column groove of second time sheet of temperature homogenizer, form the cylindrical space of placing by the second chromatographic column of outer tube (when the internal diameter of the external diameter of chromatographic column cylinder and outer tube is identical) or outer tube+inner sleeve (when the external diameter of chromatographic column cylinder is less than the internal diameter of outer tube) obvolvent.
5. the 3rd of the temperature homogenizer the upper slice semicircle chromatographic column groove: when the obvolvent of temperature homogenizer, with the semicircle chromatographic column groove of the 3rd time sheet of temperature homogenizer, form the cylindrical space of placing by the 3rd chromatographic column of outer tube (when the internal diameter of the external diameter of chromatographic column cylinder and outer tube is identical) or outer tube+inner sleeve (when the external diameter of chromatographic column cylinder is less than the internal diameter of outer tube) obvolvent.
6. the heat conduction upper slice of temperature homogenizer, lower link hinge: chain jointing temp homogenizer heat conduction upper slice, lower, and make it free-open-close.
7. lower metal heat-conducting piece of temperature homogenizer: quick conductive, evenly by the temperature of obvolvent chromatographic column.
8. the semicircle chromatographic column groove of first of the temperature homogenizer time sheet: when the obvolvent of temperature homogenizer, with the first upper slice semicircle chromatographic column groove of temperature homogenizer, form the cylindrical space of placing by the first chromatographic column of outer tube (when the internal diameter of the external diameter of chromatographic column cylinder and outer tube is identical) or outer tube+inner sleeve (when the external diameter of chromatographic column cylinder is less than the internal diameter of outer tube) obvolvent.
9. the semicircle chromatographic column groove of second of the temperature homogenizer time sheet: when the obvolvent of temperature homogenizer, with the second upper slice semicircle chromatographic column groove of temperature homogenizer, form the cylindrical space of placing by the second chromatographic column of outer tube (when the internal diameter of the external diameter of chromatographic column cylinder and outer tube is identical) or outer tube+inner sleeve (when the external diameter of chromatographic column cylinder is less than the internal diameter of outer tube) obvolvent.
10. the semicircle chromatographic column groove of the 3rd of the temperature homogenizer the time sheet: when the obvolvent of temperature homogenizer, with the 3rd upper slice semicircle chromatographic column groove of temperature homogenizer, form the cylindrical space of placing by the 3rd chromatographic column of outer tube (when the internal diameter of the external diameter of chromatographic column cylinder and outer tube is identical) or outer tube+inner sleeve (when the external diameter of chromatographic column cylinder is less than the internal diameter of outer tube) obvolvent.
11. lower of the temperature homogenizer is had contact with post: have contact with and be used in conjunction with temperature homogenizer upper slice, obvolvent temperature homogenizer.
12. outer tube: use two outer tubes to be one group and form the cylindrical space, with the tight obvolvent inner sleeve of outer sleeve inner wall (when the external diameter of chromatographic column cylinder is less than the internal diameter of outer tube) or chromatographic column cylinder (when the internal diameter of the external diameter of chromatographic column cylinder and outer tube is identical), and make outer tube outer wall and temperature homogenizer upper slice, the lower semicircle chromatographic column groove of metal heat-conducting piece form close contact.
13. inner sleeve: when chromatographic column cylinder external diameter is less than the outer tube internal diameter, first use the two tight obvolvent chromatographic column of inner sleeve cylinders, inner sleeve adds two outer tubes of bag outward again, and makes the semicircle chromatographic column groove of inner sleeve and outer tube, outer tube and temperature homogenizer form close contact.
Embodiment
The temperature homogenizer that many root chromatogram columns in a kind of different length and post footpath are integrated, comprise a metal heat-conducting piece, lower metal heat-conducting piece, upper slice metal heat-conducting piece, lower metal heat-conducting piece pass through hinge links, on upper slice metal heat-conducting piece, lower metal heat-conducting piece, many upper semi-circle shape chromatographic column grooves and many lower semi-circular chromatographic column grooves are set respectively, and upper semi-circle shape chromatographic column groove is identical with the quantity of lower semi-circular chromatographic column groove, the corresponding setting in position, place respectively one or more groups inner metal sleeve pipe in every upper semi-circle shape chromatographic column groove and lower semi-circular chromatographic column groove, the total length of inner metal sleeve pipe equals by the length of obvolvent chromatographic column cylinder, one group of metal jacket pipe identical with this group inner metal sleeve length of tube of every group of outer suit of inner metal sleeve pipe, every group of first circular inner metal sleeve pipe that the inner metal sleeve pipe is identical by a pair of length, lower semi-circular inner metal sleeve pipe forms, every group of first circular metal jacket pipe that metal jacket pipe is identical by a pair of length, the lower semi-circular metal jacket pipe forms, first circular inner metal sleeve pipe, the external arc of lower semi-circular inner metal sleeve pipe respectively with first circular metal jacket pipe, the interior circular arc of lower semi-circular metal jacket pipe coincide, first circular metal jacket pipe, the external arc of lower semi-circular metal jacket pipe respectively with upper semi-circle shape chromatographic column groove, the interior circular arc of lower semi-circular chromatographic column groove coincide, the form that the inner metal sleeve pipe is choice for use, when the external diameter of the internal diameter of metal jacket pipe and the chromatographic column cylinder that needs to place is identical, only use metal jacket pipe, when the internal diameter of metal jacket pipe is greater than the external diameter of the chromatographic column cylinder that needs placement, increases and use the inner metal sleeve pipe, the external diameter of metal jacket pipe is more than or equal to the external diameter of chromatographic column column cap, the length of upper semi-circle shape chromatographic column groove and lower semi-circular chromatographic column groove is greater than chromatogram column length, the metal jacket pipe total length that in every upper semi-circle shape chromatographic column groove and lower semi-circular chromatographic column groove, one or more groups metal jacket pipe forms equals to need the length of the chromatographic column cylinder placed.
The identical length of upper slice metal heat-conducting piece, lower metal heat-conducting piece, many upper semi-circle shape chromatographic column grooves, many lower semi-circular chromatographic column grooves with.
On upper metal heat-conducting piece, set temperature homogenizer upper slice has contact with, and on lower metal heat-conducting piece, under the set temperature homogenizer, sheet has contact with post, lower have contact with post and upper slice have contact with and be used in conjunction with.
Described chromatographic column comprises the cylinder of chromatographic column centre and the column cap part at chromatographic column two ends.
(the temperature homogenizer that many root chromatogram columns in different length and post footpath are integrated is hereinafter to be referred as the temperature homogenizer for the course of work of this equipment; The semicircle metal jacket pipe of chromatographic column is hereinafter to be referred as outer tube; The semicircle inner metal sleeve pipe of chromatographic column is hereinafter to be referred as inner sleeve)
(1) connect chromatographic column
According to requirement of experiment choose different length and post footpath chromatographic column, by selected the first chromatographic column, turn on the post lid at chromatographic column two ends, chromatographic column is connected with the mobile phase inlet/outlet pipe respectively according to the direction of arrow, with special spanner, the outlet of chromatographic column and porch are tightened.Connect successively the second chromatographic column and the 3rd chromatographic column by above-mentioned identical method.
(2) select to use outer tube or outer tube+inner sleeve obvolvent chromatographic column cylinder according to length and the post footpath of chromatographic column;
When the internal diameter of the external diameter of chromatographic column cylinder and outer tube is identical, take two outer tubes (12) as one group, length according to the chromatographic column cylinder, with two outer tubes, it is one group of a section of forming cylindrical space obvolvent chromatographic column cylinder, the cylinder of the mode next tight obvolvent whole chromatographic column from beginning to end with each group outer tube with many groups outer tube, the column cap that only stays chromatographic column outside the outer tube two ends of obvolvent not by obvolvent, make the external diameter of outer tube identical with the diameter of the semicircle chromatographic column groove of temperature homogenizer, and be more than or equal to the external diameter of chromatographic column column cap.
When the external diameter of chromatographic column cylinder is less than the outer tube internal diameter, first take two inner sleeves (13) as one group, length according to the chromatographic column cylinder, be one group with two inner sleeves and form the cylindrical space, closely one section of obvolvent chromatographic column cylinder, with many group inner sleeves, with each, organize the cylinder that inner sleeve mode from beginning to end is carried out the whole chromatographic column of tight obvolvent.Inner sleeve adds the bag outer tube by above-mentioned method outward again, and inner sleeve is equated with the total length of outer tube, the column cap that only stays chromatographic column outside the inside and outside sleeve pipe two ends of obvolvent not by obvolvent.And the external diameter of inner sleeve is equated with the internal diameter of outer tube, the chromatographic column semi-circular groove equal diameters of the external diameter of outer tube and temperature homogenizer.
(3) by obvolvent, complete chromatographic column is arranged in the temperature homogenizer
After temperature homogenizer upper slice is had contact with to (1) sheet from the temperature homogenizer and has contact with post (11) and remove, upwards open temperature homogenizer upper slice metal heat-conducting piece (2), to connect and put into by outer tube or good the first chromatographic column (the column cap part that comprises chromatographic column) of outer tube+inner sleeve obvolvent the semicircle chromatographic column groove (8) of first time sheet of temperature homogenizer successively, to connect and put into by outer tube or good the second chromatographic column (the column cap part that comprises chromatographic column) of outer tube+inner sleeve obvolvent the semicircle chromatographic column groove (9) of second time sheet of temperature homogenizer, to connect and put into by outer tube or good the 3rd chromatographic column (the column cap part that comprises chromatographic column) of outer tube+inner sleeve obvolvent the semicircle chromatographic column groove (10) of the 3rd time sheet of temperature homogenizer.Move down temperature homogenizer upper slice metal heat-conducting piece (2), make it with the temperature homogenizer under sheet metal heat-conducting piece (7) closure.First upper slice semicircle chromatographic column groove (3) of formation temperature homogenizer and the semicircle chromatographic column groove (8) of first time sheet of temperature homogenizer, second upper slice semicircle chromatographic column groove (4) of temperature homogenizer and the semicircle chromatographic column groove (9) of second time sheet of temperature homogenizer, the 3rd upper slice semicircle chromatographic column groove (5) of temperature homogenizer and the semicircle chromatographic column groove of the 3rd time sheet (10) of temperature homogenizer be 3 cylindrical spaces of obvolvent respectively, allow and be placed in by the chromatographic column of obvolvent (the column cap part that comprises the chromatographic column two ends), lower metal heat-conducting piece is in the middle of the cylindrical of obvolvent, when the length of chromatographic column is less than the semicircle chromatographic column slot length of temperature homogenizer, chromatographic column by obvolvent is placed between two parties, and on average reserve the remaining space at two ends, while guaranteeing to use inner sleeve simultaneously, chromatographic column cylinder and inner sleeve, inner sleeve and outer tube, the close contact of the semicircle chromatographic column groove of outer tube and temperature homogenizer.While only using outer tube, the close contact of the semicircle chromatographic column groove of chromatographic column cylinder and outer tube, outer tube and temperature homogenizer.Thereby make the cylinder of above-mentioned many root chromatogram columns and temperature homogenizer metal heat-conducting piece combine closely in aggregates.Mobile temperature homogenizer upper slice has contact with (1), makes it to catch on sheet under the temperature homogenizer and has contact with post (11), locks by obvolvent temperature homogenizer.
(4) the temperature homogenizer is put into to High Performance Liquid Chromatography post constant temperature oven
After completing above-mentioned action, the bottom of sheet metal heat-conducting piece (7) under the chromatogram column temperature homogenizer of this many root chromatogram columns of obvolvent one is placed on to the bottom of High Performance Liquid Chromatography post constant temperature oven, upper cover the fastening of the High Performance Liquid Chromatography of closing post constant temperature oven.The top of the temperature homogenizer upper slice metal heat-conducting piece (2) of many root chromatogram columns one is contacted with the constant temperature case lid.
(5) start detects
Then open routinely high performance liquid chromatograph, working temperature and other parameter of chromatographic column is set, after the preheating certain hour, start to detect.
Claims (1)
1. the temperature homogenizer that many root chromatogram columns in a different length and post footpath are integrated, comprise a metal heat-conducting piece, lower metal heat-conducting piece, on upper slice metal heat-conducting piece, lower metal heat-conducting piece, many upper semi-circle shape chromatographic column grooves and many lower semi-circular chromatographic column grooves are set respectively, and upper semi-circle shape chromatographic column groove is identical with the quantity of lower semi-circular chromatographic column groove, the corresponding setting in position, it is characterized in that: upper slice metal heat-conducting piece, lower metal heat-conducting piece pass through hinge links, place respectively one or more groups inner metal sleeve pipe in every upper semi-circle shape chromatographic column groove and lower semi-circular chromatographic column groove, the total length of inner metal sleeve pipe equals by the length of obvolvent chromatographic column cylinder, one group of metal jacket pipe identical with this group inner metal sleeve length of tube of every group of outer suit of inner metal sleeve pipe, every group of first circular inner metal sleeve pipe that the inner metal sleeve pipe is identical by a pair of length, lower semi-circular inner metal sleeve pipe forms, every group of first circular metal jacket pipe that metal jacket pipe is identical by a pair of length, the lower semi-circular metal jacket pipe forms, first circular inner metal sleeve pipe, the external arc of lower semi-circular inner metal sleeve pipe respectively with first circular metal jacket pipe, the interior circular arc of lower semi-circular metal jacket pipe coincide, first circular metal jacket pipe, the external arc of lower semi-circular metal jacket pipe respectively with upper semi-circle shape chromatographic column groove, the interior circular arc of lower semi-circular chromatographic column groove coincide, the form that the inner metal sleeve pipe is choice for use, when the external diameter of the internal diameter of metal jacket pipe and the chromatographic column cylinder that needs to place is identical, only use metal jacket pipe, when the internal diameter of metal jacket pipe is greater than the external diameter of the chromatographic column cylinder that needs placement, increases and use the inner metal sleeve pipe, the external diameter of metal jacket pipe is more than or equal to the external diameter of chromatographic column column cap, the length of upper semi-circle shape chromatographic column groove and lower semi-circular chromatographic column groove is greater than chromatogram column length, the metal jacket pipe total length that in every upper semi-circle shape chromatographic column groove and lower semi-circular chromatographic column groove, one or more groups metal jacket pipe forms equals to need the length of the chromatographic column cylinder placed.
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| CN201210403661XA CN102901785B (en) | 2012-10-22 | 2012-10-22 | Temperature uniformizer integrating multiple chromatographic columns with different lengths and diameters |
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| CN201210403661XA CN102901785B (en) | 2012-10-22 | 2012-10-22 | Temperature uniformizer integrating multiple chromatographic columns with different lengths and diameters |
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| CN201310391933.3A Division CN103439439B (en) | 2012-10-22 | 2012-10-22 | Temperature equalizer for chromatographic columns with stable and uniform working temperatures |
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| CN104634905A (en) * | 2015-01-14 | 2015-05-20 | 杭州纽蓝科技有限公司 | Small-sized all-in-one liquid chromatograph with on-line analysis function |
| WO2021120609A1 (en) * | 2020-07-13 | 2021-06-24 | 南通大学 | Chromatography column temperature equalizer for ensuring temperature uniformity |
| WO2021120610A1 (en) * | 2020-07-13 | 2021-06-24 | 南通大学 | Highly-adjustable chromatography column temperature equalizer |
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2012
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Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5983710A (en) * | 1997-11-24 | 1999-11-16 | Brinkman Instruments, Inc. | Modular chromatography column heating system |
| EP1275958A1 (en) * | 2001-07-05 | 2003-01-15 | Agilent Technologies, Inc. (a Delaware corporation) | Method of reducing baseline instabilities in liquid chromatographic measurements and liquid chromatography apparatus |
| CN1877319A (en) * | 2005-06-06 | 2006-12-13 | 张西咸 | Minisize chromatographic column box with high precision temperature control system |
| CN201666893U (en) * | 2010-04-12 | 2010-12-08 | 青岛盛瀚色谱技术有限公司 | Constant temperature device for ion chromatographic column |
| CN201844999U (en) * | 2010-11-03 | 2011-05-25 | 上海科油石油仪器制造有限公司 | Gas chromatographic thermostat |
| CN202033335U (en) * | 2011-03-04 | 2011-11-09 | 青岛盛瀚色谱技术有限公司 | Thermostat of ion chromatography conductivity detector |
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| CN102901785A (en) | 2013-01-30 |
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