Unlock instant, AI-driven research and patent intelligence for your innovation.

Resonance Rayleigh scattering (RRS) method for measuring azide ion

A technology of resonance Rayleigh scattering and spectroscopy, applied in the field of analytical chemistry, can solve the problems of high cost, complicated operation, and low sensitivity, and achieve the effect of simple operation, high sensitivity, and wide linear range

Inactive Publication Date: 2014-02-26
GUANGXI NORMAL UNIV
View PDF3 Cites 8 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Among them, spectrophotometry is the most reported method, but its sensitivity is not high
High performance liquid chromatography and ion chromatography are expensive and complex to operate
Resonance Rayleigh scattering spectroscopy has the advantages of simplicity, rapidity and sensitivity, and has been used in the determination of metals and many anions, but has not been seen in N 3 - Resonance Rayleigh scattering spectroscopy and fluorescence spectroscopy reported

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
  • Resonance Rayleigh scattering (RRS) method for measuring azide ion

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0017] A determination of N 3 - The resonance Rayleigh scattering spectroscopy method comprises the following steps:

[0018] (1) Preparation of N 3 - Standard solution system: Take a 5 mL graduated test tube, pipette 5, 40, 200, 500, 800 μL 0.0200 g / L N 3 - Standard solution, 100 μL 4.0 g / L 2-(chloromethyl)quinoline hydrochloride solution, 100 μL 1.04 g / L 3-aminophenylacetylene solution, 100 μL 10 g / L PEG10000 solution, mix well, and use Dilute to 2.0 mL with twice distilled water, and heat in a water bath at 65°C for 25 min;

[0019] (2) Prepare the blank control solution system: use the method of step (1) without adding N 3 - Prepare blank control solution system with standard solution;

[0020] (3) Take the N prepared in steps (1) and (2) respectively 3 - Appropriate amount of standard solution system and blank control solution system are placed in cuvettes. On the F-7000 fluorescence spectrophotometer, the detector voltage is set to 400V, the excitation slit and...

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 resonance Rayleigh scattering (RRS) spectrum method for measuring N3<->. The RRS spectrum method comprises the following steps: (1) preparing an N3<-> standard solution system; (2) preparing a blank control solution system; (3) respectively measuring an RRS peak intensity value Istandard and an RRS peak intensity value Iblank of the N3<-> standard solution system and the blank control solution system and computing deltaI=Istandard-Iblank; (4) working out a working curve according to the concentration relation between deltaI and N3<->; (5) measuring a sample of a measured material and computing deltaIsample=Isample-Iblank; and (6) checking the working curve in the step (4) according to the measured deltaIsample of the sample and computing the content of N3<-> in the measured material. The measurement method has the advantages of simple instruments, quickness in operation, high sensitivity and good selectivity.

Description

technical field [0001] The invention relates to the field of analytical chemistry, in particular to a resonance Rayleigh scattering spectrometry for determining azide ions. Background technique [0002] Azide compounds are highly toxic, second only to cyanide, and have inhibitory effects on cytochrome oxidase and other enzymes, and can hinder the formation of oxyhemoglobin in the body, and are irritating to eyes and skin. If inhaled, orally or absorbed through the skin, it can cause poisoning and death. Azide can also release azide gas. After inhalation, symptoms such as dizziness, weakness, blurred vision, dyspnea, fainting, decreased blood pressure, and bradycardia will occur. In recent years, the application field of azide has gradually expanded. In addition to being widely used in blasting equipment and pyrotechnics, it is currently the main raw material for the manufacture of nitrogen generators in automobile airbags, and it is also used in the pharmaceutical industry....

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): G01N21/25G01N21/64
Inventor 梁爱惠曾清蒋治良
Owner GUANGXI NORMAL UNIV