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Online micro sample collector and sampling analysis method

A sample collector, sampling and analysis technology, applied in the direction of analysis materials, instruments, measuring devices, etc., can solve the problems of expensive chromatography and increased test cost, and achieve the effect of low cost, simple structure and obvious effect

Active Publication Date: 2014-04-02
迈瑞尔实验设备(上海)有限公司
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  • Description
  • Claims
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Problems solved by technology

Due to the expensive chromatography, it will cause a substantial increase in the cost of the experiment

Method used

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  • Online micro sample collector and sampling analysis method
  • Online micro sample collector and sampling analysis method
  • Online micro sample collector and sampling analysis method

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Embodiment Construction

[0033] In order to make the present invention more comprehensible, preferred embodiments are described in detail below with accompanying drawings.

[0034] Such as image 3 As shown, the present invention provides an online trace sample collector, comprising a first N-way strobe valve 9 with one input and N-way outputs and a second N-way strobe valve 10 with one output and N-way inputs , in this embodiment, N=8, and each output of the first N-way strobe valve 9 is respectively connected to one input of the second N-way strobe valve 10 via a sampling tube. The reaction product input pipe 11 is communicated with the first channel pipe 12, and the reaction product input pipe 11 is also communicated with the second channel 15 and one input of the first N-way selector valve 9 through the first three-way valve 14 at the same time. The channel pipe 12 is connected to the exhaust pipe 16 after being connected with the back pressure valve 13 in series, the second channel 15 is connect...

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Abstract

The invention relates to an online micro sample collector. The online micro sample collector is characterized by comprising a first N-path gate valve and a second N-path gate valve, wherein the first N-path gate valve is provided with one path of input and N paths of output; the second N-path gate valve is provided with one path of output and N paths of input; N is greater than or equal to 2; each path of output of the first N-path gate valve is connected with one path of input of the second N-path gate valve through a sampling tube. The invention also provides a sampling analysis method using the online micro sample collector. The online micro sample collector has the characteristics that the online micro sample collector is applicable to continuous online collection of a plurality of micro samples; constant-temperature storage of the plurality of collected micro samples is realized, so that the samples are not invalid in a process of waiting for being analyzed; compared with a plurality of chromatographic instruments for realizing the function, the online micro sample collector is low in structure, low in cost and obvious in effect; if the number of the gate valves is increased, collection and storage of the samples are doubled, so that the samples in an overall experiment process can be collected.

Description

technical field [0001] The invention relates to a micro-reaction test device and a sampling analysis method using the test device. Background technique [0002] In the actual operation of the micro-reaction test device, it is necessary to carry out online collection and qualitative analysis (generally using chromatography) of the reaction product under stable conditions. Should affect the operation of the microreaction system (such as pressure disturbances). At the same time, the collected samples need to be directly sent to the chromatographic analysis by the carrier gas to obtain the composition of the samples. In order to ensure that the collected samples are representative and have no interference with the previous system, the collection process requires fast and stable conditions (such as temperature, flow). [0003] In some experiments, simple sample collection and analysis are commonly used, and usually such an analysis process does not have too high a requirement o...

Claims

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Application Information

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IPC IPC(8): G01N30/20
Inventor 张志华
Owner 迈瑞尔实验设备(上海)有限公司
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