Focusing gauge
A technology of focusing gauge and gauge, which is applied in the field of plane chromatographic analysis, can solve problems such as poor repeatability of sample spotting and poor repeatability of strip spotting
Active Publication Date: 2017-01-25
CHINA PHARM UNIV
View PDF5 Cites 0 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Because the thickness of the thin-layer plate or paper used for chromatography is not completely consistent, it may cause poor spotting repeatability, which will deteriorate the repeatability of strip spotting
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
specific Embodiment 1
[0015] Specific embodiment 1. straight-line focusing regulation plate
[0016] In order to cooperate with the new planar chromatographic spotting instrument, on the basis of fixing the height between the micro-volume nozzle and the spotting plane at 2.8mm, after a large number of tests and sorting and summarizing the data, a series of micro-volume spotting needle tips and pointing samples were obtained. The range of the optimum distance M value of the plane, the scope of the M value taken in the present embodiment is 1.5-1.9mm (i.e. h=1.5mm, Δh is 0.4mm), when the height M between the spotting needle tip and the spotting plane Within this range, ideal sample bands can be obtained. Made of stainless steel Figure 4 Linear focusing gauge shown.
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More PUM
| Property | Measurement | Unit |
|---|---|---|
| thickness | aaaaa | aaaaa |
Login to View More
Abstract
The invention discloses a focusing gauge plate and relates to the field of planar chromatography analysis. The focusing gauge plate is a component of a novel planar chromatographic sample application instrument and is a fixing size template used for adjusting and specifying the distance between a trace nozzle and a sample application plane and the distance between a sample application needle point and the sample application plane. When the novel planar chromatographic sample application instrument carries out sample application, the distance between the trace nozzle and the sample application plane and the distance between the sample application needle point and the sample application plane are the important factors affecting the sample application effect. The focusing gauge plate is manufactured by analyzing the process of a liquid drop located at the sample application needle point to be separated from a sample application needle to reach the sample application plane under the action of surrounding jet stream. When the sample application instrument uses stationary phases of different thicknesses, the distance between the trace nozzle and the sample application plane and the distance between the sample application needle point and the sample application plane can be adjusted and specified conveniently by the focusing gauge plate. The focusing gauge plate is simple in structure, the design and use of the instrument are simplified, and the novel sample application instrument can be applicable to sample application of the stationary phases of various thicknesses.
Description
technical field [0001] The invention is a fixed-size template for adjusting and standardizing the micro-distance range, in particular to a focus adjustment for controlling the distance between the micro-nozzle of a planar chromatographic spotting instrument and the spotting plane, and the distance between the tip of the spotting needle and the spotting plane regulation board. The invention is applicable to the field of plane chromatography analysis. Background technique [0002] Plane chromatography techniques in analytical chemistry mainly include thin layer chromatography (stationary phase can be silica gel, polyamide, alumina, etc.) and paper chromatography. During the test, the sampling method has a great influence on the separation effect. At present, the commonly used spotting methods are mainly spot spotting and strip spotting. Recent studies have shown that strip spotting can significantly improve the separation capacity of planar chromatography and the resolution o...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More Application Information
Patent Timeline
Login to View More Patent Type & Authority Patents(China)
IPC IPC(8): G01N30/90
Inventor 于清峰赵骥肖莹
Owner CHINA PHARM UNIV