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

Atomizer of atomic emission spectroscopy of inductively coupled plasma and measurement method

An atomic emission spectrometry and plasma technology, which is applied to the atomizer field of plasma atomic emission spectrometry, can solve the problem that the measurement signal-to-noise ratio is deteriorated, the actual utilization rate is low, and it cannot meet the needs of measuring the trace and trace analysis of general samples. and other problems to achieve the effect of reducing the detection limit

Inactive Publication Date: 2013-10-23
RES CENT FOR ECO ENVIRONMENTAL SCI THE CHINESE ACAD OF SCI
View PDF5 Cites 3 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the actual utilization rate of the sample in the traditional pneumatic atomization device is very low (5%), which cannot meet the detection of some elements. Most of the atomic spectrometers are designed to detect in the visible light range, while As, Sb, Bi, Most of the excitation lines of Ge, Sn, Pb, Se, and Te fall in the ultraviolet range, so the determination sensitivity is low
In addition, the conventional flame produces strong background interference, which leads to the deterioration of the measurement signal-to-noise ratio. The detection capabilities of the above elements plus Hg cannot meet the needs of micro and trace analysis of general samples.

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
  • Atomizer of atomic emission spectroscopy of inductively coupled plasma and measurement method
  • Atomizer of atomic emission spectroscopy of inductively coupled plasma and measurement method
  • Atomizer of atomic emission spectroscopy of inductively coupled plasma and measurement method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] Use the known technology and the nebulizer of the present invention to measure the same mixed standard containing multiple elements, investigate the changes in the intensity of commonly measured elements, and for the conclusions, please refer to Figure 3 to Figure 12 shown. The strength of Se, Hg, Cd, Bi, Sb, Sn, Pb, As, Ge and Te will be enhanced by adopting the hydrogenation generation method of the present invention.

Embodiment 2

[0032] The mixed curve was prepared with 3% hydrochloric acid, and the original sprayer and self-made hydride sprayer were used to measure according to their respective best experimental methods. The results of the working curve and detection limit are shown in Table 1. Can obtain that the present invention compares with known technology by the data in the table: the detection limit of elements such as Se, Sb, Sn, Te, Cd, Bi, As, Pb, Hg, Ni, Co, Cu, Al reduces, V, Mo The detection limits of elements such as , Zn increased, and the detection limits of Cr, P, Mn and other elements did not change significantly. Among them, the detection limit of Hg decreased by 125 times, As decreased by 19 times, Se, Sb decreased by 41 times, and Pb decreased by 2 times.

[0033] The atomizer of the present invention and the measurement method using the atomizer have the main advantages of good stability, high gas-liquid separation efficiency, easy to clear gas, easy to load and unload, and can ...

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 provides an atomizer of an atomic emission spectroscopy of an inductively coupled plasma. The atomizer is in a three-layer structure; each layer of structure is provided with a respective inlet; in the three-layer structure, the middle layer is provided with a sample solution channel; a hydride solution channel covers the outer layer of the sample solution channel; an atomized air channel is arranged at the outermost layer; the sample solution channel and the hydride solution channel are combined with the atomized air channel at an outlet of the atomizer to form one channel. The invention further discloses a method for measuring by utilizing the atomizer.

Description

technical field [0001] The invention relates to a nebulizer for analysis, in particular to a nebulizer for inductively coupled plasma atomic emission spectrometry. [0002] The invention also relates to a method for performing measurements using the nebulizer described above. Background technique [0003] Inductively coupled plasma atomic emission spectrometry ICP-AES has the advantages of high analytical sensitivity and precision, strong anti-interference and multi-element simultaneous analysis capabilities. However, the actual utilization rate of the sample in the traditional pneumatic atomization device is very low (5%), which cannot meet the detection of some elements. Most of the atomic spectrometers are designed to detect in the visible light range, while As, Sb, Bi, Most of the excitation lines of Ge, Sn, Pb, Se, and Te fall in the ultraviolet range, so the determination sensitivity is low. In addition, the conventional flame produces strong background interference,...

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): G01N21/71
Inventor 傅慧敏周益奇王巧环
Owner RES CENT FOR ECO ENVIRONMENTAL SCI THE CHINESE ACAD OF SCI