Carbene Mass Tagging for Broad-Scope Small Molecule Detection
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Solution Overview
Problem
Current methods for chemical analysis of small organic molecules in complex samples face challenges such as incomplete detection, slow processing, high cost, poor sensitivity, limited scope, and low specificity, particularly in mass spectrometry and ion mobility spectrometry, which are critical issues in fields like metabolomics, clinical diagnostics, and homeland security.
Innovation Solution
The use of carbene mass tagging (CMT) technology, where analytes are derivatized with a diazirine precursor mass tag reagent to enhance sensitivity and specificity through carbene labeling, allowing detection by mass spectrometry and ion mobility spectrometry, and enabling broad scope analysis of multiple compound classes with a single method.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If traditional mass spectrometry methods are used for chemical analysis, then detection capability is achieved, but sensitivity is poor and scope is limited
Solution Approach 1:
The patent introduces a carbene mass tag reagent as an intermediary substance that reacts with analytes to form derivatized products. This mediator enhances detection sensitivity by adding a detectable mass tag to the analyte, while the single reagent can tag multiple classes of compounds (cannabinoids, terpenes, pesticides, etc.), thereby expanding analysis scope without requiring multiple specialized instruments.
Solution Approach 2:
The patent changes the physical-chemical parameters of analytes by derivatization with the carbene mass tag. This chemical modification alters the mass-to-charge ratio and other detectable parameters of the analytes, enabling them to be detected with high sensitivity by mass spectrometry. The parameter change approach allows a single method to detect diverse compound classes that would otherwise require different analytical conditions.
2Adaptability or versatility
If multiple analytical methods and instruments are used to detect different compound classes, then comprehensive detection scope is achieved, but analysis time increases and complexity increases
Solution Approach 1:
The carbene mass tag reagent serves as a universal derivatization agent that can react with and tag multiple classes of compounds including cannabinoids, terpenes, pesticides, and other small organic molecules. This multi-functional reagent replaces the need for multiple specialized analytical methods and instruments, allowing comprehensive detection of diverse analytes through a single mass spectrometry-based protocol, thereby improving analysis speed while maintaining broad detection scope.
3Power
If high temperature treatment is applied to enhance detection, then signal response is improved, but analyte decomposition increases and sensitivity decreases
Solution Approach 1:
The carbene mass tag derivatization modifies the thermal stability parameters of the analytes. The derivatized products have enhanced volatility and thermal stability compared to the original analytes, allowing them to withstand the temperature conditions required for good mass spectrometry signal response without decomposing. This parameter change enables simultaneous achievement of high signal response and analyte integrity.
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
CMT technology provides high sensitivity and specificity, enabling rapid, cost-effective, and comprehensive detection of a wide range of chemical analytes, including metabolites, drugs, and explosives, with unique peak signatures for isomers and enantiomers, suitable for diverse sample types.
Implementation Method 1
exposing the analyte mixture to a source of energy, thereby providing derivatized analyte mixture
Implementation Method 2
carbene mass tagging (CMT) technology, where analytes are derivatized with a diazirine precursor mass tag reagent to enhance sensitivity and specificity through carbene labeling
Data Source
AI summary
The disclosure relates to a diazirine precursor mass tag compound represented by structural formula (I)Also disclosed is a method for detecting analytes in a sample, comprising derivatizing the analytes with the compound of formula (I), and detecting the resulting derivatized analytes by a mass or ion mobility spectrometry.