Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Titration end point determination device for determining fatty acid value of grain

A technology for titration end point and fatty acid value, which is applied in the direction of material analysis by observing the influence of chemical indicators, and analysis by causing chemical reactions to occur in materials, etc., to achieve the effects of simple device structure, accurate determination and low cost.

Active Publication Date: 2013-06-12
NANJING UNIV OF FINANCE & ECONOMICS
View PDF2 Cites 3 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to solve the problems existing in the determination of the titration end point in the determination of the fatty acid value of grains in the background technology, and provide a device that can accurately determine the titration end point in the determination of the fatty acid value of grains

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
  • Titration end point determination device for determining fatty acid value of grain
  • Titration end point determination device for determining fatty acid value of grain
  • Titration end point determination device for determining fatty acid value of grain

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0020] A preferred embodiment of the present invention will be described below with reference to the accompanying drawings.

[0021] Such as Figure 1 ~ Figure 3 Shown: an automatic titration end point determination device for the determination of grain fatty acid value, including: a housing 1, a burette 2, a titration cup 3, a magnetic stirrer 4, a stirrer 5, a light source 6, and a photosensitive element 7.

[0022] The titration cup 3 adopts a 100mL transparent glass beaker.

[0023] The housing 1 is a cuboid containing a cylindrical through hole, which can be made of cuboid opaque plastic, and the inner diameter of the middle cylindrical through hole is 2 mm larger than the outer diameter of the titration cup 3 .

[0024] The light source 6 adopts two high-power white LEDs with a color temperature of 5500-6500K and a power dissipation of 1W, which are relatively placed on the wall of the housing 1; the photosensitive element 7 adopts a color sensor, the model of which is ...

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 titration end point determination device for determining a fatty acid value of grain, which comprises a shell, a burette, a titration cup, a magnet stirrer, a stir bar, a light source and a light sensing element, and is characterized by also comprising a constant flow source circuit and a singlechip, wherein, the light source is connected with the constant flow source circuit; the light sensing element is connected with the singlechip; the shell is in a cuboid shape with a cylindrical through hole; the titration cup is transparent cylindrical glass, and is placed inthe shell; the light source is a high-power white light-emitted diode (LED); the light sensing element is a color sensor; and the LED and the color sensor are arranged on the inner wall of the shell at a 90-degree interval. Compared with the prior art, the device provided by the invention has the advantages of adopting the high-power white LED as the light source, needing no measurement darkroom,adopting the color sensor to detect the solution color, and automatically determining the titration end point by the singlechip, having simple structure and low cost, being matched with manual titration for use, and being beneficial for promotion and popularization.

Description

technical field [0001] The invention relates to a titration endpoint judging device, in particular to a titration endpoint judging device for measuring the fatty acid value of grains. Background technique [0002] In the process of grain storage, its quality changes with the storage time or poor storage, from new grain to aged grain gradually. The quality index of grain storage in my country (suitable for storage, slightly unsuitable for storage, and severe unsuitable for storage) is mainly based on the fatty acid value. determination. The current national standards GB / T20569-2006 and GB / T 20570-2006 (issued in November 2006) stipulate that the value of fatty acid is represented by "the number of milligrams of potassium hydroxide required to neutralize the free fatty acid in 100g dry matter sample", and its The determination method is as follows: ① pulverize the sample, extract the fatty acid with absolute ethanol to obtain the extract; ② add phenolphthalein indicator to the...

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
Patent Type & Authority Patents(China)
IPC IPC(8): G01N21/79
Inventor 李耀杨慧萍章磊刘甲宾宋伟
Owner NANJING UNIV OF FINANCE & ECONOMICS
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com