In this application note, we show how Cyanidin-3-glucoside can be extracted from black rice and purified with a prepLC/Flash system. The amount and purity of Cyanidin-3-glucoside was measured utilizing a certified reference standard.
Extraction, Identification and Purification of (-)- Epigallocatechin Gallate From Green Tea
In this application note, a method to separate and purify green tea catechins with preparative liquid chromatography (Prep-LC) using the puriFlash® 5.250 system is demonstrated. An additional HPLC-UV-MS method is also demonstrated for compound confirmation and purity analysis.
Extraction and Purification of 3 Curcuminoids from Turmeric Powder
In this application note, a method to separate and purify 3 curcuminoids from turmeric powder using thin layer chromatography (TLC) with mass spectrometry and flash chromatography is demonstrated.
Mass Directed Fraction Collection of Natural Products: Examples from Turmeric and Green Tea Extract
In this application note, we describe methods of isolating natural products from green tea and turmeric powder by mass-directed fraction collection during flash chromatography and preparative LC. For demonstration purposes, the isolated compounds were then additionally confirmed by Atmospheric Solids Analysis Probe (ASAP®) MS or HPLC-MS.
Mass Spectrometry for Teaching Chemistry Undergraduates – The expression® CMS & the SOLATION® ICP-MS
Recorded November 3, 2022: Featured talk in the LCGC Mass Spectrometry Symposium
Join Fadi Abou-Shakra, Director of ICP-MS Portfolio for Advion Interchim Scientific®, as he shares some of the organization’s latest mass spectrometry applications for the teaching lab. This includes student-friendly experiments using a compact single-quadrupole system, as well as simplified ICP-MS applications.
Fadi Abou-shakra started using ICP-MS in 1987 applying it for the analysis of trace elements in biological fluids and has been active in the field of atomic spectroscopy since then. He holds an MSc in Medical Physics and a PhD in Chemistry from the University of Surrey, England. He brings a wealth of experience in ICP-MS as a researcher, customer support specialist and a business manager.
Ready to learn more?
Laboratory Insider: A Look Inside the Organic Synthesis Lab
Ask the Expert Webinar
Presented live November 2, 2022
Step inside the Parasram Lab at New York University for a look at some of their latest research.
In this webinar, Professor Marvin Parasram will discuss data from his laboratory’s recent publication, “Anaerobic Heteroatom Transfer Reactions Using Photoexcited Nitroarenes.” The research features developments on the anaerobic cleavage of alkenes into carbonyl compounds using nitroarenes as oxygen transfer reagents under visible light. This approach is a safe and practical alternative to mainstream oxidative cleavage protocols, such as ozonolysis and the Lemieux–Johnson reaction.
As an attendee, you will learn more about:
- How a wide range of alkenes possessing oxidatively sensitive functionalities underwent anaerobic cleavage to generate carbonyl derivatives with high efficiency and regioselectivity, using the Advion Interchim Scientific puriFlash® 5.250 Preparative HPLC system.
- Mechanistic studies support that the transformation occurs via direct photoexcitation of the nitroarene followed by a nonstereospecific radical cycloaddition event with alkenes.
How this process leads to 1,3,2- and 1,4,2-dioxazolidine intermediates that fragment to give the carbonyl products, using the Advion Interchim Scientific expression Compact Mass Spectrometer. - How a combination of radical clock experiments and in situ photoNMR spectroscopy revealed the identities of the key radical species and the putative aryl dioxazolidine intermediates, respectively.Watched the video and ready to learn more?
Development of New Synthetic Methodologies Enabled by Advion Interchim Scientific Workflow
Recorded May 5, 2022.
Join Daniel Kim, Ph.D., Assistant Professor Organic, Inorganic, Biological, from Temple University, as he presents several new methodologies developed for reaction discovery.
In this webinar, you will learn:
- How to develop a fast and modular workflow for reaction discovery on a budget
- The advantages to using Advion-Interchim Scientific suite of instruments
- A review of unpublished work on developing new reaction discovery
Streamlined Benchtop Chemistry: Faster Workflow from Reaction to Fraction
Lab Manager Ask the Expert Webinar. Recorded September 7, 2022
Maximize your workflow—even with limited space at the bench. This webinar features innovative solutions for streamlining the chemists’ everyday needs, including reaction monitoring, purification, fraction collection, and evaporation. No matter what your application, the session will address some of the most common bottlenecks and how to avoid them to improve your process.
As a viewer, you will learn more about:
- How to use TLC plates to make flash purification faster and more efficient
- Software hacks leveraging sophisticated algorithms for better purifications
- 30-second fraction ID to speed up the process
- How evaporation can be easier, faster, and more reliable
Webinar speakers include:
Gary Williams
Vice President, Chemist & North American Sales
Advion Interchim Scientific
Nathaniel Kunzer
Product Specialist
Heidolph
Helium Shortages in the Chemistry Lab: Compound Characterization Using Helium-Free Techniques
Helium shortages are not new – annually, scientists see the cost of helium rise and fall like the stock market. Except this isn’t just a financial impact. Global helium shortages threaten to derail research and essential industry functions, taking down GC and high-field NMR instruments, bringing a once state-of-the-art lab down to a bare-bones facility.
This whitepaper explores the use of alternative reaction monitoring technology, including the expression® CMS (Compact Mass Spectrometer), Plate ExpressTM TLC Plate Reader, and ASAP® probe for liquid and solid samples – all helium-free alternatives for the chemistry laboratory.
Reaction Monitoring Capabilities at the Bench:
- The expression® CMS offers an ideal reaction monitoring solution that will live on long beyond the helium shortage and become a centerpiece of the lab. The system offers a complete solution for:
- Batch and flow chemistry
- Fast compound identification and purity determination
- …with little or no sample preparation required, and many novel sample introduction interfaces
University of Oxford, Chemistry Teaching Laboratories
Q: What is the focus of your lab’s research?
A: We run a large and very busy Teaching Laboratory, teaching practical skills to almost 600 undergraduates on the MChem degree course at Oxford University.
Q: What are your previous workflow and experiences challenges?
A: In many universities, undergraduate access to mass spectrometry is limited to the occasional use of a service machine, whose primary role is to support the research groups in the department. Undergraduates might be provided with data from such a service but rarely are able to collect this data themselves.
Q: Why did you incorporate the expression® CMS?
A: The expression® CMS is a fantastic instrument for undergraduate teaching. We have two machines – one set up for TLC/MS and the other with an ASAP® probe. Undergraduates, right from the first year, experience how easy it is to gather high quality, mass spectrometry data. With limited training, students are able to use the spectrometers themselves, with minimal risk of instrument damage. Collecting MS data is now as routine as getting an IR spectrum and the fast throughput of samples allows many students a day to collect data.
Q: Who would you recommend to purchase the expression® CMS?
A: We would recommend any undergraduate teaching lab to consider the purchase of the expression® CMS system. We have had our machines for 3-4 years now, and the reliability has been very good indeed. The quality of the data obtained sets our students up to use mass spectrometry in their future research careers.
Q: Do you have any publications or presentations using the expression® CMS?
A: Poster presentation: The Use of Mass Spectrometry in an Integrated Undergraduate Practical Course. Presented at the chemistry and physics education conference, ViCEPhEC, in 2019.
We are currently working on a paper with Professor Claire Vallance on the use of machine learning to classify food stuffs (fruit, tea, whisky, etc.) by mass spectrometry as an undergraduate project. We intend to publish this work in the Journal of Chemical Education in the coming months.