Liquid chromatography-mass spectrometry is commonly used for Met ID but confident soft spot identification is not always possible. Imagine the advantage of unambiguous metabolite identification using liquid chromatography-mass spectrometry (LC-MS) reducing the need for additional safety testing during drug discovery. Quickly and easily generate the information you need using routine assays that are robust and efficient, enabling confident decision-making while also saving time and money.
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PFAS testing: 2024 in review and what to expect for 2025
For as long as PFAS persist in the environment, there is no doubt they will persist in our conversations as environmental scientists. Globally, PFAS contamination has been detected in water supplies, soil and even in the blood of people and wildlife. Different countries are at various stages of addressing PFAS contamination and many governments have set regulatory limits and are working on assessing the extent of contamination, cleaning up affected sites and researching safer alternatives.
Inside the box: Acoustic ejection mass spectrometry for drug discovery
On average, it takes 10-15 years and 1-2 billion dollars to approve a new pharmaceutical for clinical use. Since approximately 90% of new drug candidates fail in clinical development, the ability to make early, informed and accurate decisions on the safety and efficacy of new hits and leads is key to increasing the chances of success.
Unveiling the power of ZT Scan DIA: Insights from Ludwig Sinn’s presentation at World HUPO Congress 2024
In a recent presentation at the World HUPO Congress 2024, Ludwig Sinn from the Ralser lab shared exciting advancements in proteomics research, focusing on the innovative ZT Scan DIA acquisition modes developed in collaboration with SCIEX. Let us explore the key highlights and benefits of this innovative technology.
Exploring the power of ZT Scan DIA
In a recent presentation, Tim Heymann from Mann Lab at the Max Planck Institute of Biochemistry shared his first impressions of ZT Scan DIA, the novel data-independent acquisition strategy from SCIEX, highlighting its innovative approach and significant benefits for proteomics research. Let’s dive into the key points from his insightful talk.
Inside the box: Complementary fragmentation with LC-MS for Metabolite Identification
Liquid chromatography-mass spectrometry is commonly used for Met ID but confident soft spot identification is not always possible. Imagine the advantage of unambiguous metabolite identification using liquid chromatography-mass spectrometry (LC-MS) reducing the need for additional safety testing during drug discovery. Quickly and easily generate the information you need using routine assays that are robust and efficient, enabling confident decision-making while also saving time and money.
Tips and tricks from our application experts: AAV analysis with CE
Peter Holper, Staff Applications Scientist at SCIEX, US, shares his tips and tricks on AAV analysis using CE with the BioPhase 8800 system and the PA 800 Plus system.
Overcoming uncertainty in your PFAS analysis
Just like gum on the bottom of a shoe, the existence of per- and poly-fluorinated alkyl substances (PFAS) in our environment is a sticky one. If you’re in the field of environmental testing, then you’re all too familiar with the threat these substances have on public health. While we have learned a lot about them over the years, there is still much more to understand. With the right detection methods, we can gather the information we need to empower us to make informed decisions on reducing the risks they impose.
High mass tuning calibration for ZenoTOF 7600
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Metabolite identification and peace of mind
Managing metabolite identification (Met ID) studies is challenging, so what is at the top of your priority list as you plan the year ahead? Ensuring you have the data needed to manage product safety, meeting deadlines, staff recruitment and training, maintaining compliance, capital expenses, or something else?
Optimized rolling collision energy curves for IDA and SWATH DIA for peptides
During data dependent acquisition (DDA or IDA) or SWATH acquisition, the collision energy can be automatically adjusted according to the mass/charge and charge of the peptide. This dependency has been well characterized on our QTOF systems. By selecting rolling...
High level method optimization considerations for Echo MS system
While an in-depth discussion of method development and optimization for the Echo® MS system is beyond the scope of a community post, here are some points to consider as part of the process: The maximum recommended ion spray voltage for prolonged electrode life is 5000...
High complexity of the lipidome
The complexity of the lipidome is diverse in the structure and there are many combinatorial isoforms that are available within nature. Currently, many different techniques are required to fully characterize a lipid molecule. What if you could do it in a single...
Standard front-end cleaning for TripleTOF systems
General points: Use of laboratory deionized (DI) water is specified at points in the procedure. However, if there are any concerns regarding quality, please utilize a reputable supplier of pure deionized water (>18.2M ohm). 5-10 liters will typically be required...
Stay informed on the latest novel psychoactive substances (NPS) flooding the US drug market
Each year, the Drug Enforcement Administration (DEA) Special Testing and Research Laboratory publishes an Emerging Threat Report. The data contained in the report is updated quarterly and represents a snapshot of the drug evidence seized and analyzed by the DEA in the...
Understanding MS1 Peak Intensity in ProteinPilot software
The “Intensity (Peptide)” values come from LCMSReconstruct, in ProteinPilot software 5.0. It maps the RT, m/z, intensity MS1 surface to find the peak information for the peptide. The Intensity (Peptide) is a weighted sum of the heights of the isotope series at the...
What is the difference between a rapid and a thorough search in ProteinPilot software?
When setting up your search in ProteinPilot software, you select either a Rapid Search or a Thorough Search in the Search Effort section. This setting determines which parts of the algorithm will be invoked and effectively how deep into your sample you will search to...
Controlling the M5 MicroLC system with SCIEX OS software using contact closure
Contact closure can be used to control external devices that are not directly controlled by SCIEX OS software. A sample batch is first created in the SCIEX OS software for MS acquisition, and then a similar batch is created on an external LC device with the required...
What are my normalization options in MarkerView software and when should I use them?
In an LC-MS experiment there are multiple sources of variance that can confound the quality of your results. This variation can be biological e.g. differences between treated and control groups, but can also be non-biological, usually from small variations in...
Top questions about the exposome of PFAS revealed
According to the CDC, the exposome is “the measure of all the exposures of an individual in a lifetime and how those exposures relate to health.”
What’s in your citrus oil?
Craig Butt explains a non-targeted omics approach to characterizing and profiling compounds in citrus oil Read time: 4 minutes There is increasing interest among consumers in the benefits of natural products containing citrus beyond the traditionally known benefits of...
Breaking down the SCIEX Triple Quad™ 7500 LC-MS/MS System – QTRAP® Ready
Sensitivity and robustness carry different meanings in the world of mass spectrometry. Generally, sensitivity refers to an instrument’s ability to achieve lower limits of detection (LOD). Robustness, on the other hand, refers to an instrument’s ability to consistently...
A rising star in food allergen research: proteomics of shellfish allergen
It’s important to know what you’re eating, especially if you suffer from a food allergy.
About 220 million people worldwide live with a food allergy.1 These numbers, along with the complexity and severity of conditions, continue to rise. In America, there are about 32 million food allergy sufferers—5.6 million of those are children under the age of 18.2.2 That’s 1 out of every 13 children, or about 2 in every classroom. From a financial perspective, the cost of food allergy childcare for US families is up to $25 billion
Using Mass Spectrometry for Down Syndrome Metabolomic Research
Last week we launched a really interesting research project with Jeff Miller, Senior SCIEX Scientist, using a SCIEX QTRAP® 6500 mass spectrometer. Our plan was to test whether acetaminophen is metabolized differently in people with Down Syndrome (our younger brother William has Down Syndrome).