CN207488180U - A kind of spectrophotometer automatic sampling apparatus - Google Patents
A kind of spectrophotometer automatic sampling apparatus Download PDFInfo
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- 238000005070 sampling Methods 0.000 title claims abstract description 25
- 239000007788 liquid Substances 0.000 claims abstract description 79
- 239000002699 waste material Substances 0.000 claims abstract description 34
- 238000007789 sealing Methods 0.000 claims abstract description 20
- 239000011521 glass Substances 0.000 claims description 19
- 238000005213 imbibition Methods 0.000 claims 3
- 239000004831 Hot glue Substances 0.000 claims 1
- 238000004458 analytical method Methods 0.000 abstract description 10
- 238000001514 detection method Methods 0.000 abstract description 9
- 238000002347 injection Methods 0.000 abstract description 6
- 239000007924 injection Substances 0.000 abstract description 6
- 238000002834 transmittance Methods 0.000 abstract description 3
- 238000000605 extraction Methods 0.000 abstract 1
- 230000000694 effects Effects 0.000 description 10
- 238000002835 absorbance Methods 0.000 description 8
- 238000005259 measurement Methods 0.000 description 5
- 238000012360 testing method Methods 0.000 description 4
- 239000004836 Glue Stick Substances 0.000 description 3
- 239000012943 hotmelt Substances 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000003287 optical effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
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Abstract
本实用新型提供了一种分光光度计自动进样装置，其特征在于，包括比色皿、废液瓶、真空泵、进样管、出样管和抽气管，所述比色皿和废液瓶分别设有与其开口处齐平的密封装置，所述比色皿内设第一吸液管和第二吸液管，高度高于所述密封装置，分别与所述进样管和出样管连接，所述第一吸液管长度比所述第二吸液管长，所述废液瓶一端通过所述出样管连接所述比色皿，另一端通过所述抽气管连接所述真空泵。本实用新型利用真空泵负压的作用进行分析，原理简单，操作方便，避免了手动将样品逐个倒入比色皿中再进行比色、清洗、擦拭，极大提高了工作效率，避免了比色皿透光面被磨损，保持比色皿的透光率，延长了使用寿命，提高了分析检测结果的准确度。
The utility model provides an automatic sampling device for a spectrophotometer, which is characterized in that it comprises a cuvette, a waste liquid bottle, a vacuum pump, a sample inlet tube, a sample outlet tube and an air extraction tube, and the cuvette and the waste liquid bottle A sealing device flush with its opening is respectively provided, and a first liquid suction tube and a second liquid suction tube are arranged in the described cuvette, which are higher than the sealing device, respectively connected to the sample injection tube and the sample discharge tube. connected, the length of the first suction pipe is longer than that of the second suction pipe, one end of the waste liquid bottle is connected to the cuvette through the sample outlet pipe, and the other end is connected to the vacuum pump through the suction pipe . The utility model utilizes the negative pressure of the vacuum pump for analysis. The principle is simple and the operation is convenient. The light-transmitting surface of the cuvette is worn to maintain the light transmittance of the cuvette, prolong the service life, and improve the accuracy of the analysis and detection results.
Description
技术领域technical field
本实用新型属于分光光度计器械领域，尤其涉及一种分光光度计自动进样装置。The utility model belongs to the field of spectrophotometer instruments, in particular to an automatic sample feeding device for a spectrophotometer.
背景技术Background technique
在分析检测领域中，分光光度计作为一种光学检测设备，经常被用来检测分析样品各元素的含量。常规的分光光度计是将待测样品逐个倒入比色皿中，然后比色，清洗，擦拭比色皿等，以防止待测也污染比色皿外部，流程繁琐。并且比色皿透光面的完好性对光的透过率影响非常大，频繁触摸容易导致透光面磨损，使检测结果偏差大，影响检测结果准确性。据此，有人提出使用滴管注入或吸出待测液，避免比色皿外部被污染的问题，但滴管吸液与排液的操作费力费时，不适用于批量样品检测。In the field of analysis and detection, a spectrophotometer, as an optical detection device, is often used to detect and analyze the content of each element in a sample. In a conventional spectrophotometer, the samples to be tested are poured into the cuvette one by one, and then the color is compared, cleaned, wiped, etc., to prevent the outside of the cuvette from being polluted, and the process is cumbersome. Moreover, the integrity of the light-transmitting surface of the cuvette has a great influence on the light transmittance, and frequent touches may easily cause the wear of the light-transmitting surface, causing large deviations in the test results and affecting the accuracy of the test results. Accordingly, it has been proposed to use a dropper to inject or suck out the liquid to be tested to avoid the problem of external contamination of the cuvette, but the operation of sucking and discharging the liquid with the dropper is laborious and time-consuming, and is not suitable for batch sample testing.
实用新型内容Utility model content
为了改进现有检测分析方式存在的问题，本实用新型提出了一种分光光度计自动进样装置，采用如下技术方案：In order to improve the problems existing in the existing detection and analysis methods, the utility model proposes a spectrophotometer automatic sampling device, which adopts the following technical scheme:
一种分光光度计自动进样装置，包括比色皿、废液瓶、真空泵、进样管、出样管和抽气管，所述比色皿和废液瓶分别设有与其开口处齐平的密封装置，所述比色皿内设第一吸液管和第二吸液管，高度高于所述密封装置，分别与所述进样管和出样管连接，所述第一吸液管长度比所述第二吸液管长，所述废液瓶一端通过所述出样管连接所述比色皿，另一端通过所述抽气管连接所述真空泵。An automatic sampling device for a spectrophotometer, comprising a cuvette, a waste liquid bottle, a vacuum pump, a sample inlet tube, a sample outlet tube, and an exhaust tube, and the cuvette and the waste liquid bottle are respectively provided with holes flush with their openings. A sealing device, a first liquid suction pipe and a second liquid suction pipe are arranged in the cuvette, the height is higher than the sealing device, and are respectively connected with the sample injection pipe and the sample discharge pipe, and the first liquid suction pipe The length is longer than the second suction pipe, one end of the waste liquid bottle is connected to the cuvette through the sample outlet pipe, and the other end is connected to the vacuum pump through the suction pipe.
启动真空泵时，管内形成负压，由于负压的作用液体通过第一吸液管自动吸入比色皿中，待充满比色皿后从第二吸液管处流至废液收集瓶，待吸光值稳定后读取吸光值，继而将橡胶管伸入下一个待测样品继续吸液测量，从而达到快速、自动进样分析检测的目的。When the vacuum pump is started, a negative pressure is formed in the tube. Due to the effect of the negative pressure, the liquid is automatically sucked into the cuvette through the first suction tube. After the cuvette is filled, it flows from the second suction tube to the waste liquid collection bottle. After the value is stable, read the absorbance value, and then extend the rubber tube into the next sample to be tested to continue the aspiration measurement, so as to achieve the purpose of rapid and automatic sample injection analysis and detection.
进一步地，所述吸液管为毛细玻璃管，利用毛细玻璃管的虹吸作用，将待测液吸入比色皿中。Further, the pipette is a capillary glass tube, and the liquid to be tested is sucked into the cuvette by using the siphon effect of the capillary glass tube.
进一步地，所述第一吸液管底部位置不低于所述比色皿高度的2/3处，所述第二吸液管底部位置不高于所述比色皿高度的1/3处，保证比色皿中待测液经过红外光源照射进行分析。Further, the position of the bottom of the first pipette is not lower than 2/3 of the height of the cuvette, and the bottom of the second pipette is not higher than 1/3 of the height of the cuvette , to ensure that the liquid to be tested in the cuvette is analyzed after being irradiated by an infrared light source.
进一步地，所述第一吸液管和第二吸液管分别置于所述比色皿的直角处，防止影响光路透过。Further, the first pipette and the second pipette are respectively placed at right angles to the cuvette, so as to prevent the transmission from affecting the optical path.
进一步地，所述密封装置为热熔胶棒或橡胶塞，密封效果好，价格低廉。Further, the sealing device is a hot-melt glue stick or a rubber plug, which has good sealing effect and low price.
进一步地，其特征在于，所述进样管、出样管和抽气管为橡胶管。Further, it is characterized in that the sample inlet tube, sample outlet tube and exhaust tube are rubber tubes.
进一步地，所述出样管上设有控制开关，以控制待测液吸入量。Further, the sample outlet tube is provided with a control switch to control the inhalation volume of the liquid to be tested.
进一步地，所述控制开关为玻璃旋塞，结构简单，易于操作。Further, the control switch is a glass cock, which has a simple structure and is easy to operate.
进一步地，还包括防倒吸瓶，置于所述废液瓶与所述真空泵之间，通过橡胶管连接，防止废液倒吸，损坏真空泵。Further, it also includes an anti-suckback bottle, which is placed between the waste liquid bottle and the vacuum pump and connected by a rubber tube to prevent the waste liquid from being sucked back and damaging the vacuum pump.
进一步地，还包括气体缓冲瓶，置于所述防倒吸瓶与所述真空泵之间，通过橡胶管连接，有效防止管内负压过高导致比色皿内待测液不足。Further, it also includes a gas buffer bottle, which is placed between the anti-suckback bottle and the vacuum pump, and is connected by a rubber tube to effectively prevent excessive negative pressure in the tube from causing insufficient liquid to be tested in the cuvette.
本实用新型的有益效果如下：The beneficial effects of the utility model are as follows:
1、利用真空泵负压的作用液体将待测液自动吸入比色皿中进行分析，原理简单，操作方便；1. Using the negative pressure of the vacuum pump, the liquid to be tested is automatically sucked into the cuvette for analysis. The principle is simple and the operation is convenient;
2、所述吸液管为毛细玻璃管，利用毛细玻璃管的虹吸作用，将待测液吸入比色皿中；2. The pipette is a capillary glass tube, and the liquid to be tested is sucked into the cuvette by the siphon effect of the capillary glass tube;
3、避免了手动将样品逐个倒入比色皿中再进行比色、清洗、擦拭，极大提高了工作效率；3. It avoids manually pouring the samples into the cuvette one by one and then performing color comparison, cleaning and wiping, which greatly improves the work efficiency;
4、整个操作过程中手将不触碰比色皿，避免了比色皿透光面被磨损，保持比色皿表明的透光率；4. During the whole operation process, the hand will not touch the cuvette, avoiding the wear of the light-transmitting surface of the cuvette, and maintaining the light transmittance indicated by the cuvette;
5、延长了比色皿使用寿命，提高了分析检测结果的准确度。5. The service life of the cuvette is extended, and the accuracy of the analysis and detection results is improved.
附图说明Description of drawings
图1为本实用新型实施例1、2的结构示意图；Fig. 1 is the structural representation of the utility model embodiment 1,2;
图2为本实用新型实施例3的结构示意图；Fig. 2 is the structural representation of the utility model embodiment 3;
图3为本实用新型实施例4的结构示意图；Fig. 3 is the structural representation of the utility model embodiment 4;
图4为本实用新型实施例5的结构示意图；Fig. 4 is the structural representation of the utility model embodiment 5;
附图标记说明：比色皿1、废液瓶2、真空泵3、进样管4、出样管5、抽气管6、密封装置11、第一吸液管12、第二吸液管13、密封装置21、控制开关51、防倒吸瓶7、气体缓冲瓶8。Explanation of reference numerals: cuvette 1, waste liquid bottle 2, vacuum pump 3, sample inlet tube 4, sample outlet tube 5, exhaust tube 6, sealing device 11, first suction pipe 12, second suction pipe 13, Sealing device 21, control switch 51, anti-suckback bottle 7, gas buffer bottle 8.
具体实施方式Detailed ways
下面结合附图对本实用新型做进一步说明。Below in conjunction with accompanying drawing, the utility model is further described.
实施例1：Example 1:
如图1所示，本实施例的分光光度计自动进样装置，包括比色皿1、废液瓶2、真空泵3、进样管4、出样管5和抽气管6，所述比色皿1和废液瓶2分别设有与其开口处齐平的密封装置11、21，所述比色皿1内设第一吸液管12和第二吸液管13，高度高于所述密封装置11，分别与所述进样管4和出样管5连接，所述第一吸液管12长度比所述第二吸液管13长，所述废液瓶2一端通过所述出样管5连接所述比色皿1，另一端通过所述抽气管6连接所述真空泵3。所述吸液管12、13为毛细玻璃管，利用毛细玻璃管的虹吸作用，将待测液吸入比色皿1中；所述进样管4、出样管5和抽气管6为橡胶管。As shown in Figure 1, the spectrophotometer automatic sampling device of the present embodiment comprises cuvette 1, waste liquid bottle 2, vacuum pump 3, sample inlet tube 4, sample outlet tube 5 and exhaust tube 6, described colorimetric The cuvette 1 and the waste liquid bottle 2 are respectively provided with sealing devices 11 and 21 flush with their openings. The cuvette 1 is provided with a first pipette 12 and a second pipette 13, the height of which is higher than that of the seal. The device 11 is connected to the sample inlet tube 4 and the sample outlet tube 5 respectively, the length of the first pipette 12 is longer than that of the second pipette 13, and one end of the waste liquid bottle 2 passes through the sample outlet pipe. The tube 5 is connected to the cuvette 1 , and the other end is connected to the vacuum pump 3 through the suction tube 6 . Described liquid suction pipe 12,13 is a capillary glass tube, utilizes the siphon effect of capillary glass tube, the liquid to be tested is sucked in the cuvette 1; .
启动真空泵时，管内形成负压，由于负压的作用液体通过第一吸液管自动吸入比色皿中，待充满比色皿后从第二吸液管处流至废液收集瓶，待吸光值稳定后读取吸光值，继而将橡胶管伸入下一个待测样品继续吸液测量，在下次测样前，需将比色皿内空气排出。When the vacuum pump is started, a negative pressure is formed in the tube. Due to the effect of the negative pressure, the liquid is automatically sucked into the cuvette through the first suction tube. After the cuvette is filled, it flows from the second suction tube to the waste liquid collection bottle. After the value is stable, read the absorbance value, and then extend the rubber tube into the next sample to be tested to continue the aspiration measurement. Before the next test, the air in the cuvette needs to be exhausted.
实施例2：Example 2:
如图1所示，本实施例的分光光度计自动进样装置，包括比色皿1、废液瓶2、真空泵3、进样管4、出样管5和抽气管6，所述比色皿1和废液瓶2分别设有与其开口处齐平的密封装置11、21，所述比色皿1内设第一吸液管12和第二吸液管13，高度高于所述密封装置11，分别与所述进样管4和出样管5连接，所述第一吸液管12长度比所述第二吸液管13长，所述废液瓶2一端通过所述出样管5连接所述比色皿1，另一端通过所述抽气管6连接所述真空泵3。所述吸液管12、13为毛细玻璃管，利用毛细玻璃管的虹吸作用，将待测液吸入比色皿1中；所述第一吸液12管底部位置不低于所述比色皿1高度的2/3处，所述第二吸液管13底部位置不高于所述比色皿1高度的1/3处，保证比色皿1中待测液经过红外光源照射进行分析；所述密封装置为热熔胶棒；所述进样管4、出样管5和抽气管6为橡胶管。As shown in Figure 1, the spectrophotometer automatic sampling device of the present embodiment comprises cuvette 1, waste liquid bottle 2, vacuum pump 3, sample inlet tube 4, sample outlet tube 5 and exhaust tube 6, described colorimetric The cuvette 1 and the waste liquid bottle 2 are respectively provided with sealing devices 11 and 21 flush with their openings. The cuvette 1 is provided with a first pipette 12 and a second pipette 13, the height of which is higher than that of the seal. The device 11 is connected to the sample inlet tube 4 and the sample outlet tube 5 respectively, the length of the first pipette 12 is longer than that of the second pipette 13, and one end of the waste liquid bottle 2 passes through the sample outlet pipe. The tube 5 is connected to the cuvette 1 , and the other end is connected to the vacuum pump 3 through the suction tube 6 . The liquid suction tubes 12 and 13 are capillary glass tubes, and the liquid to be tested is sucked into the cuvette 1 by the siphon effect of the capillary glass tube; the bottom position of the first liquid suction tube 12 is not lower than that of the cuvette. 2/3 of the height of 1, the position of the bottom of the second pipette 13 is not higher than 1/3 of the height of the cuvette 1, ensuring that the liquid to be tested in the cuvette 1 is analyzed by infrared light source irradiation; The sealing device is a hot-melt glue stick; the sample inlet tube 4, sample outlet tube 5 and exhaust tube 6 are rubber tubes.
实施例3：Example 3:
如图2所示，本实施例的分光光度计自动进样装置，包括比色皿1、废液瓶2、真空泵3、进样管4、出样管5和抽气管6，所述比色皿1和废液瓶2分别设有与其开口处齐平的密封装置11、21，所述比色皿1内设第一吸液管12和第二吸液管13，高度高于所述密封装置11，分别与所述进样管4和出样管5连接，所述第一吸液管12长度比所述第二吸液管13长，所述废液瓶2一端通过所述出样管5连接所述比色皿1，另一端通过所述抽气管6连接所述真空泵3。所述吸液管12、13为毛细玻璃管，利用毛细玻璃管的虹吸作用，将待测液吸入比色皿1中；所述第一吸液12管底部位置不低于所述比色皿1高度的2/3处，所述第二吸液管13底部位置不高于所述比色皿1高度的1/3处，分别置于所述比色皿的直角处，保证比色皿1中待测液经过红外光源照射进行分析；所述密封装置为热熔胶棒；所述进样管4、出样管5和抽气管6为橡胶管；所述出样管5上设有控制开关51，以控制待测液吸入量。As shown in Figure 2, the spectrophotometer automatic sampling device of the present embodiment comprises cuvette 1, waste liquid bottle 2, vacuum pump 3, sample inlet tube 4, sample outlet tube 5 and exhaust tube 6, described colorimetric The cuvette 1 and the waste liquid bottle 2 are respectively provided with sealing devices 11 and 21 flush with their openings. The cuvette 1 is provided with a first pipette 12 and a second pipette 13, the height of which is higher than that of the seal. The device 11 is connected to the sample inlet tube 4 and the sample outlet tube 5 respectively, the length of the first pipette 12 is longer than that of the second pipette 13, and one end of the waste liquid bottle 2 passes through the sample outlet pipe. The tube 5 is connected to the cuvette 1 , and the other end is connected to the vacuum pump 3 through the suction tube 6 . The liquid suction tubes 12 and 13 are capillary glass tubes, and the liquid to be tested is sucked into the cuvette 1 by the siphon effect of the capillary glass tube; the bottom position of the first liquid suction tube 12 is not lower than that of the cuvette. 2/3 of the height of 1, the bottom position of the second suction pipe 13 is not higher than 1/3 of the height of the cuvette 1, respectively placed at the right angles of the cuvette to ensure that the cuvette In 1, the liquid to be tested is analyzed through infrared light source irradiation; the sealing device is a hot-melt glue stick; the sample inlet pipe 4, the sample outlet pipe 5 and the exhaust pipe 6 are rubber tubes; the sample outlet pipe 5 is provided with Control the switch 51 to control the inhalation volume of the liquid to be tested.
使用本实施例的分光光度计自动进样装置，可以利用真空泵使管内形成负压，待测液进入比色皿中；同时当吸光值稳定后关闭控制开关读取吸光值，继而将橡胶管伸入下一个待测样品，打开控制开关，继续吸液测量，从而达到快速、自动进样分析检测的目的。Using the spectrophotometer automatic sampling device of this embodiment, a vacuum pump can be used to form a negative pressure in the tube, and the liquid to be tested enters the cuvette; at the same time, when the absorbance value is stable, the control switch is closed to read the absorbance value, and then the rubber tube is extended Inject the next sample to be tested, turn on the control switch, and continue to absorb liquid for measurement, so as to achieve the purpose of rapid and automatic sample injection analysis and detection.
实施例4：Example 4:
如图3所示，本实施例的分光光度计自动进样装置，包括比色皿1、废液瓶2、真空泵3、进样管4、出样管5和抽气管6，所述比色皿1和废液瓶2分别设有与其开口处齐平的密封装置11、21，所述比色皿1内设第一吸液管12和第二吸液管13，高度高于所述密封装置11，分别与所述进样管4和出样管5连接，所述第一吸液管12长度比所述第二吸液管13长，所述废液瓶2一端通过所述出样管5连接所述比色皿1，另一端通过所述抽气管6连接所述真空泵3。所述吸液管12、13为毛细玻璃管，利用毛细玻璃管的虹吸作用，将待测液吸入比色皿1中；所述第一吸液12管底部位置不低于所述比色皿1高度的2/3处，所述第二吸液管13底部位置不高于所述比色皿1高度的1/3处，分别置于所述比色皿的直角处，保证比色皿1中待测液经过红外光源照射进行分析；所述密封装置为橡胶塞；所述进样管4、出样管5和抽气管6为橡胶管；所述出样管5上设有控制开关51，以控制待测液吸入量，所述控制开关为玻璃旋塞，结构简单，易于操作。进一步地，本实施例的分光光度计自动进样装置，还包括防倒吸瓶7，置于所述废液瓶2与所述真空泵3之间，通过橡胶管连接。As shown in Figure 3, the spectrophotometer automatic sampling device of the present embodiment comprises cuvette 1, waste liquid bottle 2, vacuum pump 3, sample inlet tube 4, sample outlet tube 5 and exhaust tube 6, described colorimetric The cuvette 1 and the waste liquid bottle 2 are respectively provided with sealing devices 11 and 21 flush with their openings. The cuvette 1 is provided with a first pipette 12 and a second pipette 13, the height of which is higher than that of the seal. The device 11 is connected to the sample inlet tube 4 and the sample outlet tube 5 respectively, the length of the first pipette 12 is longer than that of the second pipette 13, and one end of the waste liquid bottle 2 passes through the sample outlet pipe. The tube 5 is connected to the cuvette 1 , and the other end is connected to the vacuum pump 3 through the suction tube 6 . The liquid suction tubes 12 and 13 are capillary glass tubes, and the liquid to be tested is sucked into the cuvette 1 by the siphon effect of the capillary glass tube; the bottom position of the first liquid suction tube 12 is not lower than that of the cuvette. 2/3 of the height of 1, the bottom position of the second suction pipe 13 is not higher than 1/3 of the height of the cuvette 1, respectively placed at the right angles of the cuvette to ensure that the cuvette In 1, the liquid to be tested is analyzed through infrared light source irradiation; the sealing device is a rubber plug; the sample inlet tube 4, sample outlet tube 5 and exhaust tube 6 are rubber tubes; the sample outlet tube 5 is provided with a control switch 51, to control the suction volume of the liquid to be tested, the control switch is a glass cock, simple in structure and easy to operate. Further, the spectrophotometer automatic sampling device of this embodiment also includes an anti-suckback bottle 7, placed between the waste liquid bottle 2 and the vacuum pump 3, and connected by a rubber tube.
使用本实施例的分光光度计自动进样装置，可以利用真空泵使管内形成负压，待测液进入比色皿中；同时当吸光值稳定后关闭控制开关读取吸光值，继而将橡胶管伸入下一个待测样品，打开控制开关，继续吸液测量，从而达到快速、自动进样分析检测的目的。同时，装置设有防倒吸瓶，防止废液倒吸，损坏真空泵。Using the spectrophotometer automatic sampling device of this embodiment, a vacuum pump can be used to form a negative pressure in the tube, and the liquid to be tested enters the cuvette; at the same time, when the absorbance value is stable, the control switch is closed to read the absorbance value, and then the rubber tube is extended Inject the next sample to be tested, turn on the control switch, and continue to absorb liquid for measurement, so as to achieve the purpose of rapid and automatic sample injection analysis and detection. At the same time, the device is equipped with an anti-suction bottle to prevent waste liquid from being sucked back and damaging the vacuum pump.
实施例5：Example 5:
如图4所示，本实施例的分光光度计自动进样装置，包括比色皿1、废液瓶2、真空泵3、进样管4、出样管5和抽气管6，所述比色皿1和废液瓶2分别设有与其开口处齐平的密封装置11、21，所述比色皿1内设第一吸液管12和第二吸液管13，高度高于所述密封装置11，分别与所述进样管4和出样管5连接，所述第一吸液管12长度比所述第二吸液管13长，所述废液瓶2一端通过所述出样管5连接所述比色皿1，另一端通过所述抽气管6连接所述真空泵3。所述吸液管12、13为毛细玻璃管，利用毛细玻璃管的虹吸作用，将待测液吸入比色皿1中；所述第一吸液12管底部位置不低于所述比色皿1高度的2/3处，所述第二吸液管13底部位置不高于所述比色皿1高度的1/3处，分别置于所述比色皿的直角处，保证比色皿1中待测液经过红外光源照射进行分析；所述密封装置为橡胶塞；所述进样管4、出样管5和抽气管6为橡胶管；所述出样管5上设有控制开关51，以控制待测液吸入量，所述控制开关为玻璃旋塞，结构简单，易于操作。进一步地，本实施例的分光光度计自动进样装置，还包括防倒吸瓶7和气体缓冲瓶8，所述防倒吸瓶7置于所述废液瓶2与所述真空泵3之间，所述气体缓冲瓶8置于所述防倒吸瓶7与所述真空泵3之间，均通过橡胶管连接。As shown in Figure 4, the spectrophotometer automatic sampling device of the present embodiment comprises a cuvette 1, a waste liquid bottle 2, a vacuum pump 3, a sample inlet tube 4, a sample outlet tube 5 and an exhaust tube 6, and the colorimetric The cuvette 1 and the waste liquid bottle 2 are respectively provided with sealing devices 11 and 21 flush with their openings. The cuvette 1 is provided with a first pipette 12 and a second pipette 13, the height of which is higher than that of the seal. The device 11 is connected to the sample inlet tube 4 and the sample outlet tube 5 respectively, the length of the first pipette 12 is longer than that of the second pipette 13, and one end of the waste liquid bottle 2 passes through the sample outlet pipe. The tube 5 is connected to the cuvette 1 , and the other end is connected to the vacuum pump 3 through the suction tube 6 . The liquid suction tubes 12 and 13 are capillary glass tubes, and the liquid to be tested is sucked into the cuvette 1 by the siphon effect of the capillary glass tube; the bottom position of the first liquid suction tube 12 is not lower than that of the cuvette. 2/3 of the height of 1, the bottom position of the second suction pipe 13 is not higher than 1/3 of the height of the cuvette 1, respectively placed at the right angles of the cuvette to ensure that the cuvette In 1, the liquid to be tested is analyzed through infrared light source irradiation; the sealing device is a rubber plug; the sample inlet tube 4, sample outlet tube 5 and exhaust tube 6 are rubber tubes; the sample outlet tube 5 is provided with a control switch 51, to control the suction volume of the liquid to be tested, the control switch is a glass cock, simple in structure and easy to operate. Further, the spectrophotometer automatic sampling device of this embodiment also includes an anti-suckback bottle 7 and a gas buffer bottle 8, and the anti-suckback bottle 7 is placed between the waste liquid bottle 2 and the vacuum pump 3 , the gas buffer bottle 8 is placed between the anti-suckback bottle 7 and the vacuum pump 3, all connected by rubber tubes.
使用本实施例的分光光度计自动进样装置，可以利用真空泵使管内形成负压，待测液进入比色皿中；同时当吸光值稳定后关闭控制开关读取吸光值，继而将橡胶管伸入下一个待测样品，打开控制开关，继续吸液测量，从而达到快速、自动进样分析检测的目的。同时，装置设有防倒吸瓶和气体缓冲瓶，防止废液倒吸损坏真空泵，有效防止管内负压过高导致比色皿内待测液不足。Using the spectrophotometer automatic sampling device of this embodiment, a vacuum pump can be used to form a negative pressure in the tube, and the liquid to be tested enters the cuvette; at the same time, when the absorbance value is stable, the control switch is closed to read the absorbance value, and then the rubber tube is extended Inject the next sample to be tested, turn on the control switch, and continue to absorb liquid for measurement, so as to achieve the purpose of rapid and automatic sample injection analysis and detection. At the same time, the device is equipped with an anti-suckback bottle and a gas buffer bottle to prevent the waste liquid from being sucked back and damage the vacuum pump, and effectively prevent the negative pressure in the tube from being too high to cause insufficient liquid to be tested in the cuvette.
在使用本发明的分光光度计自动进样装置对待测液进行分析之前，均须检查比色皿的气密性，保证不漏气，使用前注水试验观察比色皿内壁是否有水泡，如有应清除。Before using the spectrophotometer automatic sampling device of the present invention to analyze the liquid to be measured, the airtightness of the cuvette must be checked to ensure that there is no air leakage. should be cleared.
最后应说明的是：以上所述仅为本发明的优选实施例而已，并不用于限制本发明，尽管参照前述实施例对本发明进行了详细的说明，对于本领域的技术人员来说，其依然可以对前述各实施例所记载的技术方案进行修改，或者对其中部分技术特征进行等同替换,凡在本发明的精神和原则之内，所作的任何修改、等同替换、改进等，均应包含在本发明的保护范围之内。Finally, it should be noted that: the above is only a preferred embodiment of the present invention, and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, for those skilled in the art, it still The technical solutions recorded in the foregoing embodiments may be modified, or some of the technical features may be replaced equivalently, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included in the within the protection scope of the present invention.
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112304882A (en) * | 2019-07-30 | 2021-02-02 | 东亚Dkk株式会社 | Analysis device |
| CN112683801A (en) * | 2021-01-21 | 2021-04-20 | 上海菁一科技有限公司 | Spectrophotometry test method sample treatment test capsule |
| CN112707891A (en) * | 2020-12-29 | 2021-04-27 | 华南理工大学 | Method and device for inert gas assisted purification of OLED material or intermediate thereof |
| CN112798582A (en) * | 2021-01-21 | 2021-05-14 | 上海菁一科技有限公司 | Sewage detection method and application |
| CN114379920A (en) * | 2022-01-27 | 2022-04-22 | 抚州三和医药化工有限公司 | A kind of transfer device for omeprazole production |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112304882A (en) * | 2019-07-30 | 2021-02-02 | 东亚Dkk株式会社 | Analysis device |
| CN112304882B (en) * | 2019-07-30 | 2024-04-05 | 东亚Dkk株式会社 | Analysis device |
| CN112707891A (en) * | 2020-12-29 | 2021-04-27 | 华南理工大学 | Method and device for inert gas assisted purification of OLED material or intermediate thereof |
| CN112707891B (en) * | 2020-12-29 | 2021-11-23 | 华南理工大学 | Method and device for inert gas assisted purification of OLED material or intermediate thereof |
| CN112683801A (en) * | 2021-01-21 | 2021-04-20 | 上海菁一科技有限公司 | Spectrophotometry test method sample treatment test capsule |
| CN112798582A (en) * | 2021-01-21 | 2021-05-14 | 上海菁一科技有限公司 | Sewage detection method and application |
| CN112798582B (en) * | 2021-01-21 | 2023-03-21 | 上海菁一科技有限公司 | Sewage detection method and application |
| CN114379920A (en) * | 2022-01-27 | 2022-04-22 | 抚州三和医药化工有限公司 | A kind of transfer device for omeprazole production |
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