Fluoroether Mass Spectrometry with Low-Temperature Ionization
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Solution Overview
Problem
Conventional mass spectrometry methods fail to detect fluoroether compounds with high sensitivity, leading to difficulties in accurate analysis and potential misidentification due to fragmentation and adduct formation.
Innovation Solution
A mass spectrometry method involving the preparation of a sample solution with a fluoroether compound and a solvent, followed by ionization and mass separation, where the sample solution is sprayed with an atomizing gas at 330°C or lower and the produced droplets are brought into contact with a dry gas at 190°C or lower, optimizing ion production and detection.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If conventional mass spectrometry methods are used to detect fluoroether compounds, then the analysis can be performed with standard equipment and procedures, but the detection sensitivity is insufficient and fragmentation occurs leading to inaccurate analysis
Solution Approach 1:
The patent changes the temperature parameters in the ionization process - specifically using an atomizing gas at 330°C or lower and a dry gas at 190°C or lower. This parameter modification prevents excessive fragmentation of fluoroether compounds while maintaining effective ionization, thereby improving both detection sensitivity and analysis accuracy simultaneously
Solution Approach 2:
The patent applies preliminary protective measures by controlling the ionization conditions to prevent fragmentation before detection occurs. By using controlled temperature atomizing gas and dry gas, the method preemptively avoids the formation of fragment ions that would lead to inaccurate analysis, thus preserving the integrity of the molecular ion for accurate detection
2Power
If higher temperatures are used in ionization to improve ion production, then ionization efficiency increases, but fragmentation of the fluoroether compound increases reducing detection accuracy
Solution Approach 1:
The patent optimizes the temperature parameters within specific ranges - atomizing gas at 330°C or lower and dry gas at 190°C or lower. This parameter optimization maintains sufficient ionization efficiency for detecting fluoroether compounds while preventing excessive thermal energy that would cause fragmentation, thus resolving the contradiction between ionization efficiency and mass determination accuracy
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
This method significantly enhances the detection sensitivity of fluoroether compounds, allowing for accurate mass determination and reducing fragmentation, thereby improving analytical precision.
Implementation Method 1
ionizing the fluoroether compound in the sample solution and removing the solvent to produce an ion
Implementation Method 2
the sample solution is sprayed together with an atomizing gas at 330° C. or lower to produce droplets
Implementation Method 3
the produced droplets are brought into contact with dry gas at 190° C. or lower
Data Source
AI summary
Provided is a mass spectrometry method for a fluoroether compound, the method comprising (1) preparing a sample solution containing the fluoroether compound and a solvent, (2) ionizing the fluoroether compound in the sample solution and also removing the solvent to produce an ion, and (3) mass-separating the ion to determine the mass of the ion, wherein in the production of the ion, the sample solution is sprayed together with an atomizing gas at 330° C. or lower to produce droplets, and the produced droplets are brought into contact with a dry gas at 190° C. or lower.