GEN-MKT-18-7897-A
Jul 14, 2023 | Blogs, LC, Pharma, SCIEX OS software, ZenoTOF 7600 system | 0 comments
Read Time: 3 minutes
So, you need a new liquid chromatography-mass spectrometry (LC-MS) system for your metabolite identification (metID) studies, and you are not sure which option is right for you. This blog provides an overview of the metID solutions offered by SCIEX, so you can make the best decision for your organization.
This is the first in a series of blogs intended to help you choose a system that meets your pharmaceutical research and development needs. We hope you find their guidance useful.
Let’s start with a simple question: Which of the following would help you sleep well at night?
We have great news for you: SCIEX has solutions for enabling both A and B. Let’s take a closer look.
Scenario A Let’s say you are looking for a system that will run larger batches of samples, and your analytes typically fragment well using collision-induced dissociation (CID), allowing confident identification of the site of metabolism without the need for additional confirmatory testing.
For a complex analysis, the requirements are relatively straightforward, and the priorities are probably ease of use and a robust system that does the job day in and day out. For this scenario, SCIEX recommends using the ExionLC 2.0+ system coupled to the X500R QTOF system, SCIEX OS software and maintenance with SCIEX service and support. The workflow described in the technical note Targeted high-resolution metabolite screening workflows demonstrates the performance you can expect from this solution.
Scenario B Suppose you have several samples where clear identification of the site of metabolism is not possible using CID. In this case, the use of a secondary analytical technique, such as nuclear magnetic resonance (NMR), is often required to meet regulatory requirements. Since this approach can be both time-consuming and expensive, an LC-MS system with more analytical power is ideal. Potent therapeutics is another common challenge in this type of scenario, which makes method sensitivity a key requirement for detecting low-abundant metabolites.
In these circumstances, SCIEX recommends using the ExionLC 2.0+ system coupled to the ZenoTOF 7600 system, SCIEX OS software and maintenance with SCIEX service and support.
The ZenoTOF 7600 system features the Zeno trap for enhanced sensitivity and electron activated dissociation (EAD) as a complementary fragmentation option. EAD typically fragments the metabolite in different locations, which can provide the additional information required for clear identification of the site of metabolism from a single analytical technique.
The workflow described in the technical note Confident characterization and identification of glucuronide metabolites using diagnostic fragments from electron activated dissociation (EAD) is a useful example of this solution.
Learn more For more information on the options SCIEX offers for metID, please speak to your account manager or visit our web page on comprehensive metID.
In monoclonal antibody (mAb) development, assessment of purity and integrity of the protein in question is critical. CE‑SDS is the gold standard assay and is routinely run from analytical development through QC and lot release. It’s trusted because it consistently delivers quantitative, size‑based insight into purity and fragmentation, and it fits naturally into regulated environments.
In drug discovery and development, Metabolite Identification (Met ID) plays a critical role in understanding biotransformation pathways, ensuring safety, and meeting regulatory requirements. Advanced mass spectrometry techniques have revolutionized this process, particularly through electron-based fragmentation methods such as Electron Activated Dissociation (EAD) and Electron Transfer Dissociation (ETD). While both techniques leverage electron interactions to generate informative fragment ions, they differ significantly in mechanism, performance, and suitability for Met ID workflows.
In analytical laboratories, performance is not optional. Whether supporting regulated pharmaceutical workflows, high-throughput CRO operations, clinical reporting, or food and environmental testing, your mass spectrometry and capillary electrophoresis systems are critical to productivity, compliance, and scientific confidence.
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