Quarternary low pressure gradient mixing device

A low-pressure gradient and mixing device technology, which is applied in the direction of measuring devices, instruments, scientific instruments, etc., can solve the problems of high cost and complex structure, achieve high precision, good gradient repeatability, and reduce costs

Inactive Publication Date: 2006-10-11
SHANGHAI JIAO TONG UNIV
View PDF2 Cites 11 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The main drawback of this design is that the

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 more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Quarternary low pressure gradient mixing device
  • Quarternary low pressure gradient mixing device
  • Quarternary low pressure gradient mixing device

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0024] The present invention proposes a low-pressure gradient elution device used in a high-performance liquid chromatograph, which is implemented in two parts: hardware and control, and both of the hardware parts can be implemented using existing technologies. The detailed description is as follows in conjunction with the drawings:

[0025] Such as figure 1 Shown. The low-voltage gradient mixing device of this embodiment is composed of a microprocessor (MCU), I / O expansion, liquid crystal display circuit, keyboard circuit, memory with clock, programmable timing circuit, solenoid valve control circuit, stirring rod control circuit, photoelectric Isolate the drive circuit, USB communication module and control module.

[0026] In this embodiment, the microprocessor part is the core of the low-pressure gradient mixing device. It uses Philips’ P89C668 as the system’s CPU. The processor mainly completes channel selection, parameter setting, and conversion to time proportional electrom...

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

No PUM Login to view more

Abstract

The invention relates to a quaternary low-pressure gradient mixer, belonging to the biochemical analyzer, which comprises a micro processor, an I/O extender, a liquid crystal display circuit, a keyboard circuit, a memory with clock, a programmable timing circuit, an electromagnetic valve control circuit, a control circuit of mixing rod, a photoelectric isolating circuit; a USB communication interface circuit and a control module. Wherein, it uses the micro processor as core which is connected with the memory, the electromagnetic valve control circuit, the switch power supply, the control circuit of mixing rod, the programmable timing circuit, the I/O extender, the USB communication module; the electromagnetic valve control circuit via the photoelectric isolating circuit controls the electromagnetic valve; the switch power supply controls the power supply switch circuit; the control circuit of mixing rod via the photoelectric isolating circuit control the mixing rod; the P89C668 micro processor via the I/O extender controls the liquid crystal display circuit and the keyboard circuit; and the P89C668 micro processor via the USB communication circuit is connected to the computer. The invention uses elution method to reduce the cost with better application and economic benefits.

Description

technical field [0001] The invention relates to a device in the field of biochemical analysis instruments, in particular to a quaternary low-pressure gradient mixing device used in high-performance liquid chromatography. Background technique [0002] The high-performance liquid chromatograph controlled by a microprocessor now has a high degree of automation. It can not only control the operating parameters of the instrument, but also shrink, enlarge, and superimpose the obtained chromatograms, as well as retain data and peak heights and peaks. It provides high-efficiency and comprehensive analysis tools for chromatographers. The gradient elution system in high performance liquid chromatography is divided into high pressure gradient and low pressure gradient. There are generally two types of high-pressure gradient devices, one is composed of two high-pressure pumps, a gradient program controller, a mixer and other components. This high-pressure gradient device can obtain an...

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
no application Login to view more
IPC IPC(8): B01D15/18G01N30/34
Inventor 柴新禹王招娣王珺艳赵瑛祝新德
Owner SHANGHAI JIAO TONG UNIV
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap