Mass Spectrometry & Spectroscopy 23 Mass Spectrometry Sample Preparation for Nylon 6,6 Analysis
A new technical note from BioChromato compares Evolved Gas Analysis (EGA) and Thermal Desorption (DART) as sample preparation methods for Mass Spectrometry analysis of Nylon 6,6.
Synthesised by polycondensation of hexamethylenediamine and adipic acid, Nylon 6,6 is a polyamide or nylon that is commonly used in the textile and plastic industries. Nylon 6,6 is a polymer of choice when high mechanical strength, rigidity, good stability under heat and/or chemical resistance are required. In the technical note the authors compare ionRocket-DART®
-MS to EGA-MS for analysis of Nylon 6,6 samples.
Evolved Gas Analysis has traditionally been used as a mass spectrometry sample preparation technique for polymers, plastics, and fibres. However, analysis by EGA-MS generates fragment ions and requires a database to confirm the identity of the mass fragments.
By comparison, the authors demonstrate how using ionRocket-DART/MS you can observe the parent ion without fragment ions because DART is a soft ionisation technique. Consequently, ionRocket-DART/MS can provide qualitative analysis even if customers cannot find an objective mass fragment within their EGA/MS database.
The ionRocket is a temperature-heating device for direct thermal desorption and pyrolysis of samples, prior to ionisation and analysis by mass spectrometry. Using ionRocket a temperature gradient from ambient up to 600ºC can be achieved in just a few minutes. This enables polymers, plastics, and fibres to be pyrolysed and then introduced into the DART®
-MS gas stream.
Read this application report in full:
ilmt.co/PL/KBJB More information online:
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Powerful Stable Isotope Ratio Mass Spectrometer
Isotopx introduces SIRIX, a new large radius gas source stable isotope ratio mass spectrometer. SIRIX features advanced multicollector technology derived from the Phoenix Thermal Ionisation MS. It also includes the company’s unique, patented ATONA®
versatile, sensitive, stable isotope mass spectrometer that is intuitive to use, and can also be optimised for the most exacting applications, including the measurement of isotopologues.
Key features include: 9 individually movable Faraday detectors; lLarge 90°27 cm radius magnet; simultaneous measurement of m/z 44, 45, 46, 47, 48 and 49; wide flight tube ensures no backgrounds from reflected ions; mass resolving power of 5,000 is obtainable; better than 10 ppm precision for 48 CO2 / 44 CO2, within 100 minutes; ATONA® A on the Faraday array.
allows accurate and precise measurement of ion signals of >1e-7 A down to <1e-17
Users of SIRIX will also benefit from the capability to significantly increase their throughput compared to existing solution. The exceptionally quiet and stable amplifier system allows for extended measurement times of sample gas, without the need for repetitive calibration with a reference gas, or calibration of different gain resistors
Zenon Palacz, Managing Director, said: “The addition of a smarter solution for clumped isotopes is a welcome addition to our portfolio. Through direct engagement with the isotopologue community we’ve identified where traditional IRMS systems cannot meet the analytical needs and designed a solution to fill that gap. Our experience with larger radius, large magnet instruments from TIMS and noble gas analysis put us in an excellent position to provide this solution. Furthermore, our ATONA®
technology lends itself incredibly well to isotopologue applications where there are large variances in isotope
abundances. More information online:
ilmt.co/PL/LqjP
56966pr@reply-direct.com amplifier technology in combination with a high sensitivity, high mass resolution spectrometer design. The result is a powerful,
New Pulsed Light Sources for Time-resolved Photoluminescence Spectroscopy
Edinburgh Instruments is delighted to launch a series of pulsed light sources for time-resolved photoluminescence spectroscopy. The VPL, VPLED and HPL series of pulsed diode lasers and LEDs expand the range of compact, monochromatic sources on offer, while the AGILE supercontinuum laser provides tunable picosecond pulses across the visible and NIR regions.
The HPL diode lasers are designed for time-Correlated Single Photon Counting (TCSPC) from picoseconds to microseconds and are fully compatible with Edinburgh Instruments systems. They are the perfect choice for challenging samples with low brightness, thanks to their high repetition rates up to 80 MHz and high-power output mode.
More information online:
ilmt.co/PL/0D1Z 56386pr@reply-direct.com
New Software Features Support Remote Working
v2021 of ACD/Labs’ Spectrus and Percepta platform applications provide updates and new software features for its desktop and enterprise products
ACD/Labs has announced its annual updates across its Spectrus and Percepta platform applications.
“The increasing degree of proximity-limited scientific research and development over the last eighteen months has elevated the need for digitalised, accessible data and automated solutions,” said Andrew Anderson, VP Innovation & Informatics Strategy, ACD/Labs. “As demand increases for leveraging existing knowledge via digital means, we are developing our technology to anticipate the needs of scientists and their organisations.”
The v2021 release delivers new features and enhancements for ACD/Labs software users while aligning with current scientific IT trends.
Key highlights include: broader integration with laboratory hardware and software for a better-integrated lab; democratised knowledge and accessible data with Spectrus; expansion of functionality in browser-based applications; new functionality for scientists in MS, chromatography, NMR, and property prediction.
More information online:
ilmt.co/PL/p9vV 56487pr@reply-direct.com
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