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September 24, 2012



Eclectic Techniques Measure Thermal Properties

Thermal analysis is the broad category of at least 20 techniques that measure some fundamental property of matter as a result of adding heat. For example, dilatometry measures volume changes upon heating, thermomechanical analysis quantifies the change in dimension of a sample as a function of temperature, and thermo-optical analysis detects changes in optical properties on heating or cooling.

This discussion applies mostly to two techniques, differential scanning calorimetry (DSC) and thermogravimetric analysis (TGA), although many of the ideas presented here apply to other types of thermal analysis. DSC and the related micro-DSC measure the amount of heat required to change the temperature of a sample. DSC is most often used with materials that undergo phase changes.

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 Featured Product

Mystaire Misonix FE-2620

The FE-2620 is a compact, economical solution for capturing fumes and particulate during routine laboratory analysis. This lightweight model is constructed from durable epoxy-coated aluminum that provides for excellent durability in typical laboratory environments. The clear base section is constructed from ¼″ acrylic with a hinged front sash.

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 Featured Question and Discussions

Plenty of discussions are happening on LabWrench all the time. We have many questions come in daily from users that are seeking advice from fellow users and lab professionals. Can you help any of these users find the answers they are looking for?

Cooling fan getting off again and again
What can be the cause of the cooling fan turning off again and again there by not completing the analysis early in Moisture analyzer?
Provide an answer

Reflotron Plus Program not working
My Reflotron Plus' program is not working. Please, what can I do?
Provide an answer

We have replaced the static and pressure relief valve. The waste collection vial still fills with solvent during the purge and end relief steps. What could be the other sources of this problem?
Provide an answer

Labconco rotary evaporator
Looking for an Electronic diagram of the water bath temperature from Labconco rotary evaporator.
Provide an answer

View all Questions and Discussions on LabWrench

 Upcoming Webinar

Brought to you by METTLER TOLEDO 

Q: My balance is flashing 0.000. How do I clear this?

A: The error that is indicated by flashing 0.000 can be triggered by any of the following:

1. The weighing pan is not making proper contact with the cell. Remove and replace the weigh pan.
2. The main pc board has failed
3. The weigh cell has failed.

If item 1 does not clear the error a service technician is needed to determine and replace the cell or the main pc board. If you need service for your balance, call METTLER TOLEDO at 1-800-METTLER.

Submit your question to a TotalCare Service Expert

 Featured News

Anton Paar Launches New Generation of Multiwave Line of Microwaves
New regulations for elemental analysis of food, pharmaceutical, and consumer products as well as improvements in analytical techniques such as ICP-MS and ICP-OES, are revealing the limitations of legacy digestion techniques; quality trace elemental analysis begins in sample preparation.
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Sartorius Stedim Biotech' Secura Balance Offers More Reliability in Weighing
All balances are required to deliver precise and, above all, correct results. To ensure accuracy, users need to not only check that a balance’s metrological specifications are suitable, but also that they control all parameters that influence weighing when setting up and operating a balance.
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KNF Introduces Smaller Brushless DC Motor As Standard For Liquid And Gas OEM Diaphragm Pumps
KNF introduces a new small brushless DC motor (Type BL30) as standard and readily available for integration into a wide range of liquid and gas diaphragm pumps for OEM applications. This motor (with outside diameter of only 32mm) is designed to fit within standard compressor housings and delivers all the critical performance benefits associated with brushless DC motor technology.
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Eppendorf announces new rotors for Centrifuges 5804/R and 5810/R!
Eppendorf introduces four new rotors for centrifuges 5804/R and 5810/R, which are defined as the true workhorses of the lab with their renowned quality, reliability and versatility. Two new swing-bucket rotors increase the capacity of Centrifuge 5804/5804 R to 1 liter and Centrifuge 5810/ 5810 R to 3 liter.
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Read all articles on LabWrench

 Featured App

PerkinElmer Gas Chromatography Essentials App

If you are interested in learning more about gas chromatography basics, instrumentation, and accessories, you have come to the right place. Use this tool to learn about the basics of how gas chromatography (GC) and gas chromatography mass spectrometry (GC-MS) work as well as examples of applications of these analytical techniques.

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Sigma-Aldrich Molarity App

The Molarity App from Sigma-Aldrich(R) is a chemistry calculator tool that generates lab-ready directions describing how to prepare an acid or base solution of a specified molarity or normality from a concentrated acid or base solution.

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 Contact Us

Kylie Sauvé -
LabWrench Data Manager


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