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

Method for rapid detection of metal Al<3+>

A metal and fast technology, applied in color/spectral characteristic measurement, chemical analysis by titration method, fluorescence/phosphorescence, etc., can solve the problems of inferior sensitivity to fluorescence, low accuracy, sensitivity, and inability to detect, etc., to achieve the preparation method Simple, accurate measurement data, time-saving effect

Inactive Publication Date: 2015-11-25
YANCHENG TEACHERS UNIV
View PDF3 Cites 1 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This method is time-consuming and laborious, and cannot meet the requirements of rapid detection of aluminum content, and the accuracy and sensitivity are not high. This method can only measure the approximate range of aluminum content
In addition, the sensitivity of UV spectrophotometer is not as good as that of fluorescence. For samples with low aluminum content, UV-visible light may not be able to detect

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
  • Method for rapid detection of metal Al&lt;3+&gt;
  • Method for rapid detection of metal Al&lt;3+&gt;

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0018] 1. UV-visible spectroscopic titration experiment:

[0019] use C 2 h 5 OH / H 2 O was used as solvent, and the concentration of OCN was 2.5×10 -6 mol / L,Al 3+ The final concentration was 5.75×10 -6 mol / L, the concentration ratio is 1:2.3.

[0020] Dilute 2.5 μL to a concentration of 1.0 x 10 -3 mol L -1 The synthetic solution of 2-hydroxy-1-naphthaldehyde urea was added to the 2mL absolute ethanol / H 2 O (v:v=1:1) quartz cuvette, then gradually add Al 3+ solution (concentration of 2 × 10 -4 mol L -1 , add 2.5 μL each time). It can be seen from the titration curve that with Al 3+ With the continuous addition of , the UV absorption intensity at 315nm and 350nm decreases continuously, while the absorption at 335nm and 385nm increases continuously. When Al in the system 3+ The concentration reaches 5.0×10 -6 mol L -1 Afterwards, the intensity of the absorption peak no longer increases. Two isabsorptive points appear at 320nm and 362nm.

[0021] 2. Fluorescence...

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

PropertyMeasurementUnit
melting pointaaaaaaaaaa
Login to View More

Abstract

The invention discloses a method for rapid detection of metal Al<3+>, and relates to the ion detection technical field. A synthetic method comprises the steps: including 2-hydroxyl-1-naphthalene formaldehyde urea and anhydrous ethanol, during preparation, weighing 2-hydroxyl-1-naphthalene formaldehyde urea, dissolving with anhydrous ethanol to prepare a 0.01 M mother liquid, and then diluting to 2.5*10<-6> M with anhydrous ethanol. The method is prone to realization of rapid detection and easy and fast to operate, the preparation method is simple, the time is saved, and the measurement data are accurate.

Description

technical field [0001] The invention relates to the technical field of ion detection, in particular to a rapid detection of metal Al 3+ Methods. Background technique [0002] The current method for detecting aluminum content is mainly to use a series of complexes formed by a series of different amounts of aluminum and chrome azure S or cetyltrimethylamine bromide, measure its absorbance with an ultraviolet spectrophotometer, and then draw a standard curve To measure the aluminum content in the sample. This method is time-consuming and laborious, and cannot meet the requirements of rapid detection of aluminum content, and the accuracy and sensitivity are not high. This method can only measure the approximate range of aluminum content. In addition, the sensitivity of ultraviolet spectrophotometer is not as good as that of fluorescence. For samples with low aluminum content, ultraviolet and visible light may not be able to detect. Contents of the invention [0003] The obj...

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): G01N21/33G01N21/64G01N31/16
Inventor 王清明耿荣庆汤新慧宋佳亮祁辉李杨
Owner YANCHENG TEACHERS UNIV
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