In this application note, we demonstrate a complete solution for the synthesis, purification, and quantitation of Gd(III)-DOTA, an ionic imaging contrast agent with better chemical stability and lower toxicity compared to the currently used Gd-(DTPA).
Analysis of Iohexol using the Advion Interchim Scientific® AVANT® HPLC and expression® CMS System
Iohexol is a widely used non-ionic imaging agent that improves contrast for x–ray analysis. Its low osmolality allows for a rapid clearance via the kidney, preventing reabsorption and further metabolization. This makes iohexol a compound with a better safety profile compared to other imaging agents.
In this application note, a simple and accurate HPLC-CMS method for iohexol analysis is introduced.
Rapid Analysis Using Direct Microextraction Assays Coupled to the New SOLATION® ICP-MS
Recorded February 2, 2023: LIVE Location, the 2023 European Winter Conference on Plasma Spectrochemistry
Speakers:
Janez Ilaš, Ph. D., Professor, University of Ljubljana
Fadi Abou-Shakra, Director of Advion Interchim Scientific® ICP-MS Portfolio
Join Advion Interchim Scientific® with guest speaker from the University of Ljubljana, Faculty of Pharmacy, to learn more about a new novel sample introduction method for ICP-MS utilizing direct analysis via microextraction. First you will learn microextraction methods with the Plate Express TLC Plate/microextraction reader coupled to the single-quadrupole expression® Compact Mass Spectrometer (CMS). After understanding the basics of the platform, you will learn more about how this technology was reimagined to suit the SOLATION® ICP-MS for a rapid method to determine isotopic analysis faster and easier than ever before.
Ready to learn more?
Streamlined Benchtop Mass Spectrometry for the Pharmaceutical Industry
Maximize your analytical spectroscopy workflow in pharmaceutical applications—even with limited space at the bench. This session features innovative solutions for streamlining everyday needs in the lab, including reaction monitoring utilizing fast, prep-free sample introduction techniques for answers in seconds. You will also learn the latest technology in heavy metal analysis, as well as purification tools to maximize your scale-up efforts.
As a viewer, you will learn more about:
- How to obtain direct mass analysis from TLC plates in seconds
- Prep-free mass sampling techniques such as a direct analysis probe
- How heavy metal analysis technology has improved for maximum use in the pharmaceutical lab
- How scale-up needs can be met with the latest purification technologies
The Extraction, Identification, Purification and Quantitation of Cyanidin-3-glucoside in Black Rice
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?