Product category:
Liquid Analysis: Spectroscopy, Colour
News Release from: Ultrasonic Scientific | Subject: HR-US technology
Edited by the Processingtalk Editorial
Team on 06 April 2004
Technique for monitoring of gelation
processes
Ultrasonic Scientific introduces a new application note detailing the characterisation of gels and analysis of gelation processes, using ultrasonic spectrometers to detect the gelation point
Ultrasonic Scientific introduces technique for monitoring of gelation processes Ultrasonic Scientific introduces a new application note detailing the characterisation of gels and analysis of gelation processes
This article was originally published on Processingtalk on 11 Dec 2003 at 8.00am (UK)
Related stories
New HR-US technology at Pittcon 2004
Ultrasonic Scientific, innovator in high-resolution ultrasonic spectroscopy for material analysis, will be showcasing its innovative NEW ultrasonic titration analyser, and spectroscopy at PITTCON 2004
Poster details crystallisation HR-US applications
A new technical poster demonstrating the use of HR-US technology to monitor crystallisation for material analysis was presented by Ultrasonic Scientific at the recent PITTCON 2006 conference
Spectrometers from Ultrasonic Scientific provide the capability for non-destructive detection of the gelation point and monitoring of pre-gelation, gelation and post-gelation, chemical and micro-structural processes.
Ideal for use in the pharmaceuticals, dairy and food ingredients industries, this technique can replace traditional methods specially in the analysis of weak gels, which are often affected or destroyed with other methods.
The HR-US technology is non-destructive, extremely sensitive, requires no markers and can be used in non-transparent samples, concentrates and semisolid materials.
The technique uses ultrasonic waves, which propagate through most materials including opaque samples and allow direct probing of intermolecular forces.
The application note describes how high-resolution ultrasonic spectroscopy allows analysis of pre-gelation processes, detection of the gelation point, gelation interval and postgelation reactions as well as the analysis of the transformations in the polymer (polymer gel) and particle (particle gel) structure, and characterises the micro-arrangement of the gel network.
The application note includes three applications of gelation processes: - ultrasonic monitoring of the melting of a carrageenan gel - ultrasonic monitoring of the acid gelation of caseins - ultrasonic monitoring of the acid gelation of whey proteins.
The HR-US series of instruments by Ultrasonic Scientific are a powerful solution to the analysis of gelation processes.
Small samplers of typically 1ml are used (though lower and higher volumes of sample compartments are available) under controlled temperature parameters (down to 0.01C) and with stirring, if required.
The HR-US series of instruments offer unprecedented tools for research and industry in developing new gel-based products and optimisation of existing technologies.
They provide high-throughput rates for small sample volumes, with no sample preparation or time-consuming set-up.
The technical note is available free-of-charge directly from Ultrasonic Scientific as a two page document or as a pdf file from the Ultrasonic Scientific website.
• Ultrasonic Scientific: contact details and other news
• Email this article to a colleague
• Register for the free Processingtalk email newsletter
• Processingtalk Home Page
Search the Pro-Talk network of sites
