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

Detection method for content of iodine in feed

A detection method and technology for iodine content are applied in the field of determining the iodine content in feed according to the standard curve of an iodine standard solution, and can solve the problems of difficulty in popularization, complicated operation and high requirements on reagent accuracy

Active Publication Date: 2015-03-25
无锡华诺威动物保健品有限公司
View PDF3 Cites 7 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The patent application number is 200910210080.2, which discloses the preparation method of iodine standard solution and the method of detecting iodine in milk or milk powder. This method requires high precision and variety of reagents, and is limited to laboratory testing; GB / T The detection of iodine in infant food and dairy products in 541323-2010 can detect the total iodine in the feed, but the precision of this method far exceeds the requirements of the feed, the operation is cumbersome, the required equipment is expensive, and it is difficult to popularize in the feed industry

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
  • Detection method for content of iodine in feed
  • Detection method for content of iodine in feed
  • Detection method for content of iodine in feed

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] A method for detecting iodine content in feed, comprising the steps of:

[0028] (1) Carry out ion-pair chromatography detection to iodine standard solution:

[0029] Precisely measure an appropriate amount of 1 mg / L iodine standard solution, dilute with water, and prepare standard working solutions with concentrations of 2 μg / mL, 5 μg / mL, 10 μg / mL, 15 μg / mL, and 20 μg / mL respectively. The chromatographic conditions are: Shimadzu LC-10AT high performance liquid chromatography; chromatographic column: C 18 Column, column length 250mm, inner diameter 4.6mm, particle size 5μm; column temperature: 40°C; detector: UV detector; detection wavelength: 225nm; injection volume: 20μL; Show; detection chromatogram such as figure 1 shown;

[0030] (2) draw iodine content standard curve according to the detection result of step (1), wherein take iodine concentration as abscissa, and peak area is ordinate, as figure 2 Shown; As can be seen from the curve in the figure, the linear...

Embodiment 2

[0037] A method for detecting iodine in feed, comprising the steps of:

[0038] (1) Carry out ion-pair chromatography detection to iodine standard solution:

[0039] Precisely measure an appropriate amount of 1 mg / L iodine standard solution, dilute with water, and prepare standard working solutions with concentrations of 2 μg / mL, 5 μg / mL, 10 μg / mL, 15 μg / mL, and 20 μg / mL respectively. The chromatographic conditions are: Shimadzu LC-10AT high performance liquid chromatography; chromatographic column: C 18 Column, column length 250mm, inner diameter 4.6mm, particle size 5μm; column temperature: 40°C; detector: UV detector; detection wavelength: 225nm; injection volume: 20μL; Show; detection chromatogram such as figure 1 shown.

[0040] (2) draw iodine content standard curve according to the detection result of step (1), wherein take iodine concentration as abscissa, and peak area is ordinate, as figure 2 Shown; As can be seen from the curve in the figure, the linear relatio...

Embodiment 3

[0047] A method for detecting iodine in feed, comprising the steps of:

[0048] (1) Carry out ion-pair chromatography detection to iodine standard solution:

[0049] Precisely measure an appropriate amount of 1 mg / L iodine standard solution, dilute with water, and prepare standard working solutions with concentrations of 2 μg / mL, 5 μg / mL, 10 μg / mL, 15 μg / mL, and 20 μg / mL respectively. The chromatographic conditions are: Shimadzu LC-10AT high performance liquid chromatography; chromatographic column: C 18Column, column length 250mm, inner diameter 4.6mm, particle size 5μm; column temperature: 40°C; detector: UV detector; detection wavelength: 225nm; injection volume: 20μL; Show; detection chromatogram such as figure 1 shown;

[0050] (2) draw iodine content standard curve according to the detection result of step (1), wherein take iodine concentration as abscissa, and peak area is ordinate, as figure 2 Shown; As can be seen from the curve in the figure, the linear relation...

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 discloses a detection method for the content of iodine in a feed. The detection method comprises the following steps: (1) carrying out ion pair chromatography detection on an iodine standard solution; (2) drawing an iodine content standard curve according to a detection result in the step (1); (3) pretreating a sample to be detected before the detection of the content of the iodine; and (4) detecting the pretreated sample to be detected by adopting the method in the step (1), comparing the detection result with the standard curve, and calculating the content of the iodine in the sample to be detected. The method has a good linear relation, is easy to operate, has strong repeatability and high accuracy, and can be used for detecting the general iodine in the feed.

Description

technical field [0001] The invention relates to the technical field of detecting chemical components, in particular to a method for determining iodine content in feed according to a standard curve of an iodine standard solution. Background technique [0002] Iodine is the second essential trace element found in animals. Its main function is to participate in the synthesis of thyroxine in the body, thereby indirectly affecting the physiological functions of the animal body. Iodine deficiency in animals can hinder animal growth and reduce fecundity, and excessive iodine consumption can also lead to hyperiodine goiter and animal poisoning. Therefore, it is of great significance to accurately determine the content of iodine in feed. [0003] At present, the iodine-containing compounds in the catalog of feed additives (2013) include potassium iodide, sodium iodide, potassium iodate, and calcium iodate. The determination of iodine in feed adopts the method of GB / T 13882, but thi...

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 Applications(China)
IPC IPC(8): G01N30/02
Inventor 乐红权黄剑飞
Owner 无锡华诺威动物保健品有限公司
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