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Excel macro for plate building for transformation of 96-well to 384-well plates with generation of batch lists for SCIEX OS software
This macro-enabled workbook is designed to help with creating a formatted analysis list for the Echo® MS system, using 96-well plate maps or lists
Tags: book, change, copy, file, form, item, list, location, machine, map, model, name, object, order, plate, run, sample, software, tab, way
February 24, 2022
Previously unknown group of PFAS compounds detected near Solvay manufacturing site in New Jersey
In a recent PFAS fireside chat, Dr. John Washington from the US EPA discussed the findings of a recent study published in Science that detected a novel group of per- and polyfluoroalkyl substances (PFAS)—called chloroperfluoropolyether carboxylates (ClPFPECAs)—in soil samples from New Jersey. The study, conducted by Dr. Washington and his colleagues, detected 10 unique ClPFPECAs in these samples, with the highest concentrations measured near the Solvay manufacturing plant in West Deptford Townhouse, New Jersey, and decreased amounts detected as the distance from the plant increased.
Tags: high resolution accurate mass spectrometry, non-target analysis, PFAS, soil testing
February 17, 2022
Standard mixture for bare fused silica capillary.
Hi, is there a recommended standard mixture to evaluate the performance of CZE runs in a bare fused capillary with UV/Vis detector? Thanks.
Tags: bare, capillary, performance, question_resolved, standard
February 15, 2022
Back to the new basics: Part 1 | Making the leap from GC-MS to LC-MS
Producing accurate results quickly in a demanding environment is no easy feat for analytical scientists. What’s more, many of us are constantly questioning ourselves—I certainly am—about whether we are employing the best technique for the analysis at hand.
It’s an overwhelming thought, considering the wide range of tools that are available to choose from, each of which offers varying levels of capacity, sensitivity, selectivity, specificity and cost. How do you meet the unique needs of your organization without breaking the bank? I get it, and I’m not here to convince you it’s easy. My aim is to guide you through the process to help you make the right decision for you.
- Biopharma
- Blogs
- Clinical
- Environmental / Industrial
- Food / Beverage
- Forensic
- Life Science Research
- Pharma
Tags: 3500 System, compound, computer, GC-MS, high, job, LC-MS/MS, machine, mass, method, number, phase, power, range, sample, science, study, system, technique, use, used, water, work
February 10, 2022
What to expect for cannabis in 2022 and beyond
As the new year commences and we make plans for 2022, cannabis will be a hot topic in some areas of the world. There may be continuations from 2021 around legislations and regulations, and we might even see new trends for some regions and countries.
Tags: Cannabis, Cannabis News, Cannabis testing, CBD, Hemp
February 1, 2022
How to optimize sample plating to run Echo MS system in ‘Fast acquisition mode’
The Echo MS system can acquire data extremely rapidly, at 1 second per sample. To achieve this speed, it should be ensured that there is adequate time between ejections for the analyte signal to return to baseline between ejections. Plating your samples such that you are monitoring different analytes from adjacent wells, as shown below, […]
Tags: adjacent, car, component, design, different, echo, eject, file, light, mode, model, number, peak, plate, run, sample, system, type, value, work
January 31, 2022
Selecting the mobile phase for your assay and optimizing flow rates
To obtain the best, most reproducible results with Echo MS system, it is important both to select the best solvent for your analyte and matrix and to ensure the flow rate is optimized for your solvent. Considerations for solvent selection: The Echo MS system is calibrated to methanol. If you change to a different solvent, the […]
Switching between different LCs that communicate through ethernet and setting up the correct module IP address
Different LC options are supported in SCIEX OS software and Analyst software. Those that communicate through ethernet differ in their default IP addresses. In this community post, we will detail the LAN setup, configuring the IP address and subnet mask for LC connection. The following steps detail how to setup the correct IP address depending […]
Tags: acquisition, analyst, closure, computer, contact, data file, device, install, method, setting, software, system
January 20, 2022
What are the differences between EPA methods 533 and 537.1?
With the risk of per- and polyfluoroalkyl substances (PFAS) contamination and accumulation in humans and wildlife on the rise, it is important to continuously improve and demonstrate capabilities for accurate and precise low-level quantification in research and testing laboratories. This includes biomonitoring as well as analyzing exposure sources such as drinking water. In December 2019, […]
January 10, 2022
EchoMS OPI Leakage Issue
What is the best way to determine if a recurrent OPI leak during standard operation is due to a faulty/ fouled OPI probe head or a fouled/damaged electrode or poor flow rate optimization?
Tags: EchoMS, electrode, flow, Leak, OPI, probe
January 9, 2022
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