Multifunctional gas-chromatograph automatic sample injector

A technology of gas chromatography and automatic sampling, which is applied in the field of gas chromatographs, can solve the problems of lack, low degree of automation, and poor precision, and achieve the effects of fast speed, avoiding inaccurate detection results, and ensuring safety

Active Publication Date: 2013-01-23
ZHENGZHOU COLLECT SCI INSTR
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The needle core of the gas chromatograph liquid automatic sampling device with this structure can automatically extract the solution, but it lacks the corresponding measures after the stepping motor loses the step, the degree of automation is not high, and the accuracy is poor

Method used

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  • Multifunctional gas-chromatograph automatic sample injector
  • Multifunctional gas-chromatograph automatic sample injector
  • Multifunctional gas-chromatograph automatic sample injector

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Embodiment Construction

[0017] Depend on figure 1 , figure 2 , image 3 and Figure 4A kind of multifunctional gas chromatographic autosampler shown comprises a turret base 5, a sample tray assembly 1 is provided on the left side of the turret base 5, a turret 21 with a housing is provided on the turret base 5, and the turret base 5 is provided with a turret 21, The tower 21 is vertically provided with a mounting plate assembly, the mounting plate assembly includes a mounting plate 6, and the mounting plate 6 is provided with an injector assembly, and the injector assembly includes a pair of needle core fixing block synchronous pulleys 23 vertically arranged up and down, two needle cores A vertical synchronous belt 18 is assembled on the fixed block synchronous belt pulley 23. The inner surface of the synchronous belt 18 is provided with belt teeth, and the outer surface of the synchronous belt pulley 23 is provided with external teeth corresponding to the synchronous belt 18. The right side of th...

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Abstract

The invention discloses a multifunctional gas-chromatograph automatic sample injector comprising a rotary tower base, one side of the rotary tower base is provided with a sample disk assembly, a rotary tower is arranged on the rotary tower base, and an injector assembly is arranged on the rotary tower and comprises an injector and a needle core assembled with the injector; the needle core is arranged on a needle core fixing block driven by a vertically arranged synchronous belt and a synchronous belt of the needle core fixing block, the synchronous belt of the needle core fixing block and a sample disk are respectively driven by a stepping motor with a feedback encoder connected with a central processor, and the central processor is also connected with a human-computer interface. The multifunctional gas-chromatograph automatic sample injector has the advantages of convenient installation and use, strong university, 24-hour uninterrupted work when unattended, high sampling volume and repeatability precision, high degree of automation, manpower saving, alleviation of labor intensity of workers, enhancement of working efficiency and improvement on the accuracy of the sample analysis result of a gas chromatograph.

Description

technical field [0001] The invention relates to a gas chromatograph, in particular to a special automatic sampling device for analyzing samples by the gas chromatograph. Background technique [0002] At present, the sampling method of domestic gas chromatographs mostly adopts the manual sampling method, that is, the operator uses a syringe to quantitatively inject the sample into the head of the chromatographic column. Due to the different proficiency and habits of the operators, coupled with artificial visual errors, the sampling speed Unstable, large quantitative error, thus reducing the accuracy of the analysis results. [0003] In the patent 96222653.x, a gas chromatograph liquid automatic sampling device is disclosed. Its structure is: it is composed of a sample injector and a controller. The sample injector is composed of a sample tray assembly, a syringe assembly, a keyboard and a motor drive circuit assembly. , the controller is composed of a control circuit and a k...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01N30/18
Inventor 周河张正尧康贺贺
Owner ZHENGZHOU COLLECT SCI INSTR
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