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Processing method for signals of inductively coupled plasma-mass spectrometry (ICP-MS)

A technology of ICP-MS and signal processing, applied in measurement devices, material analysis by electromagnetic means, instruments, etc., can solve the wasted time, reduce the scanning time of elements of interest, complexity and other problems

Inactive Publication Date: 2017-11-03
BIOYONG TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The disadvantage of this continuous scanning system is the time wasted in the blank areas of the spectrum, which reduces the scan time for the element of interest accordingly
Therefore, complex system analysis chromatography, mass spectrometry data preprocessing and peak extraction are much more complicated than traditional single sample processing

Method used

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  • Processing method for signals of inductively coupled plasma-mass spectrometry (ICP-MS)
  • Processing method for signals of inductively coupled plasma-mass spectrometry (ICP-MS)
  • Processing method for signals of inductively coupled plasma-mass spectrometry (ICP-MS)

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Experimental program
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Effect test

Embodiment 1 63

[0039] Embodiment one, 63 Cu + Ion Mass Spectrometry Signal Processing

[0040] 1. Instruments and reagents

[0041] Plasma Trace 2 High Resolution Inductively Coupled Plasma Mass Spectrometer from Micrornass, UK

[0042] HP4500series 300 Inductively Coupled Plasma Mass Spectrometer from Hewlett Pakard, USA

[0043] ICPS-1000II Plasma Atomic Emission Spectrometer, Shimadzu Corporation, Japan

[0044] 2. Reagents

[0045] Mos-grade hydrochloric acid and superior-grade pure nitric acid were used, and the Cu standard working solution was gradually diluted with a primary reserve standard solution (1 mg / mL) prepared by Beijing Iron and Steel Research Institute.

[0046] Mixed standard solution: 1.00Lg / mL, respectively pipette 5.00mL of Cu standard working solution with a concentration of 20.0Lg / mL in a 100mL volumetric flask, add 5mL of aqua regia, dilute to the mark with water, and mix well.

[0047] Mixed internal standard solution: 0.50 μg / mL, respectively pipette 5.00 mL ...

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Abstract

ICP‑MS has been widely used in medicine, materials, geology, environment, petrochemical and many other fields. Due to the characteristics of the sample and the limitation of the resolution of the instrument, many peaks are often superimposed on each other. The present invention relates to an ICP-MS signal processing method: including the collected spectrogram (1) denoising (2) smoothing (3) singular point removal (4) baseline calibration (5) peak alignment (6) and reaching peak characteristics extract(7). The invention has the advantages of intelligent post-processing of mass spectrograms, data standardization and the like.

Description

technical field [0001] The invention relates to the field of elemental analysis, in particular to an ICP-MS data post-processing method for continuous data processing. Background technique [0002] Inductively coupled plasma mass spectrometry (ICP-MS) combines the high-temperature ionization characteristics of inductively coupled plasma and the advantages of sensitive and fast scanning of quadrupole mass spectrometer, and is currently the most effective and efficient method for the rapid analysis of trace and ultra-trace components. The most sensitive and accurate method for measuring isotopic richness. The advantages of this technology compared with other trace analysis techniques are: (1) sample injection under atmospheric pressure, which is convenient to be used in combination with other sample injection techniques; (2) simple spectrum, low detection limit, fast analysis speed and wide dynamic range (3) It can perform isotope analysis, single element and multi-element an...

Claims

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Application Information

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IPC IPC(8): G01N27/62
CPCG01N27/62
Inventor 马庆伟薛恒钢
Owner BIOYONG TECH