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Solid phase microextraction sampling device and system

A sampling device and extraction technology, which are applied in the field of solid-phase microextraction sampling devices and their systems, can solve the problems affecting the accuracy of the SPME pretreatment technology, the application range, and limit the sample volume, and achieve the effects of reducing production costs and being quick to use.

Pending Publication Date: 2018-09-28
NANJING FORESTRY UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

At present, the SPME devices that are widely used at home and abroad are mainly produced by Supelco Company of the United States. Although the company is equipped with various extraction heads, automatic and manual handles, sampling tables, etc., its operating platform still cannot meet the requirements of simultaneous pretreatment of multiple samples. At the same time, the volume of the sample is limited, which directly affects the accuracy and application range of the SPME pretreatment technology

Method used

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  • Solid phase microextraction sampling device and system
  • Solid phase microextraction sampling device and system
  • Solid phase microextraction sampling device and system

Examples

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Embodiment

[0037] Please refer to figure 1 with figure 2, this embodiment provides a solid phase microextraction sampling device 100, including a bracket 110 and a magnetic stirring device 130, the bracket 110 is used to fix the handle 120 of the solid phase microextraction instrument. The bracket 110 is fixedly connected with the magnetic stirring device 130 , and the handle 120 of the solid phase microextractor is arranged on the bracket 110 . In this embodiment, the support 110 is perpendicular to the magnetic stirring device 130 , that is, the support 110 is perpendicular to the placement surface of the solid phase microextraction sampling device 100 . The bracket 110 in this embodiment is a cylindrical structure, and the bracket 110 is made of iron material. In other embodiments of the present invention, the bracket 110 may be a prismatic structure, and its material may be other materials such as aluminum alloy, which is not limited in the present invention.

[0038] The bracket...

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Abstract

The invention provides a solid phase microextraction sampling device and system and relates to the technical field of solid phase microextraction instruments. The solid phase microextraction samplingdevice comprises a support and a magnetic stirring device. The support comprises a fixing part and a fixing tube; the fixing tube is provided with a plurality of through holes, the diameter of the through holes increases or decreases gradually, and a solid phase microextraction instrument handle is passed through one through hole and fixed to the fixing tube. The above structure allows the solid phase microextraction instrument handle to be fixed just providing the different hole dimeters for the fixing tube; using is quick and simple, with production cost effectively reduced. Simultaneous extraction can be provided for multiple samples, high efficiency and great convenience are achieved, and the influence of environment and time upon the samples is reduced. The magnetic stirring device comprises a water bath pot provided with a fixing net that is composed of multiple spring wires. By adjusting space of the adjacent spring wires, the magnetic stirring device is suitable for different specifications of sample bottles; extraction is achieved for the different specifications of samples.

Description

technical field [0001] The invention relates to the technical field of solid-phase microextraction instruments, in particular to a solid-phase microextraction sampling device and a system thereof. Background technique [0002] Sample pretreatment is a crucial link in the analytical chemistry process, which takes up more than 60% of the entire analysis process, and the main analysis errors also come from the sample pretreatment link. Whether the sample pretreatment process is advanced or not is directly related to the quality of the analysis method. Its progress has a great impact on the development of analytical chemistry. The exploration and research of various new technologies and methods for sample pretreatment has become one of the main development directions of contemporary analytical chemistry. The fast, simple and automatic pretreatment technology not only saves time and effort, but also reduces the errors caused by different personnel operations and multiple transfe...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N30/06
CPCG01N30/06G01N2030/062
Inventor 范俊俊周婷张龙江皓张往祥汪贵斌曹福亮
Owner NANJING FORESTRY UNIV
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