TGA 550

Tru-Mass Balance

At the core of every new Discovery TGA is the proprietary Tru-Mass Balance. The Tru-Mass Balance system is Thermally isolated for high sensitivity in every laboratory environment, delivers highest Resolution to separate the components of the most challenging TGA samples, and Ultra low drift (Tru-Mass). Unlike competitive designs, the Discovery TGA delivers optimum performance without requiring baseline subtractions and other post-test manipulation required by competitors to make the data better. The result is an innovative new TGA with unrivaled performance in weight drift and sensitivity.

Balance Features and Benefits:

• Ultra-low drift balance design ensures accurate detection of even the smallest weight changes.
• High capacity (1 g) Tru-Mass balance with auto-ranging capability to ensure the best sensitivity no matter the size of the sample.
• Free-hanging sample eliminates the heat sink prevalent in top-loading designs, for the most efficient heat transfer and gas flow around the sample.
• Thermally isolated balance with low drift and high sensitivity to deliver the most accurate real time data.

The new proprietary balance system delivers the purest real-time weight data possible.

Wire-Wound (Pt/Rh) Furnace

Standard furnace for the TGA 55 and TGA 550.

Features & Benefits

• Ambient to 1000 °C
• Linear controlled heating rates of 0.1 to 100 °C/min
• Ballistic heating rates >600 °C/min
• Low mass furnace allows fast cooling for quick and efficient turn around between runs

EGA Furnace

Optional Evolved Gas Analysis (EGA) furnace for the TGA 55 and TGA 550.

Features & Benefits

• Ambient to 1000 °C
• Heating rates of 0.1 to 50 °C/min linear controlled
• Low volume, vacuum tight, and quartz lined for good evolved gas results
• Quartz liner makes furnace easy to clean

Atmosphere Control

Discovery TGA’s are designed with superior atmosphere control to meet the most demanding applications. Whether maintaining an inert atmosphere, switching to an oxidative purge, or maintaining a high vacuum the Discovery TGA is up to the task.

Atmosphere Control Features and Benefits:

• Innovative Gas-Delivery manifold design eliminates potential leak points from tubing and hardware connections ensuring the most consistent, repeatable atmosphere.
• Integrated software-controlled gas switching for experiments requiring dynamic or reactive atmospheres
• New Gas blending module allows additional inputs of 4 gases with controlled gas switching and blending capability for flexible and demanding applications
• Horizontal purge for best sample interactions
• Vacuum tight to ensure inert, oxygen free atmospheres
• Sealed pan option to maintain the atmosphere of the sample until the experiment starts

Reliable Automation

The NEW Discovery TGA features our new 25-position autosampler designed to be the most rugged and reliable system ever developed.

Autosampler Features and Benefits:

• Compatible with all pan types and sizes for ultimate flexibility.
• Sealed pan and pan punch option for effective isolation of air sensitive or volatile samples.
• Scheduled and unattended calibrations and verifications give scientists more time for research.
• New TRIOS software makes it easier than ever to manage and run a large and diverse sample queue. The Design view and Running queue allow for quick and efficient autosampler programming.

“APP” Style Touch Screen

Touch Screen Features and Benefits:

• Ergonomic design for easy viewing and operation
• Packed with functionality to simplify operation and enhance user experience. The apps-style touch screen includes:
• Start/stop runs
• Test and instrument status
• Real-time signals
• Real-time plot
• Active method viewing
• Advance method segments
• Autosampler calibration
• Loading/unloading and taring pans
• System information
• The app-style touch screen, powerful new TRIOS software, the robust and reliable autosampler with automated calibration and verification routines all work seamlessly to dramatically improve laboratory workflow and productivity.

ITS NEVER BEEN EASIER TO GET GREAT DATA!

Hi-Res TGA

In Hi-Res TGA, the heating rate is controlled by the decomposition rate of the sample. The Discovery TGA 5500 and 550 designs are ideal for these measurements with rapid response furnaces for precise temperature control, and sensitive thermobalances designed to quickly detect small weight changes.

Benefits of Hi-Res TGA include:

• Separation of broad and overlapping weight losses
• Increased productivity with better resolution
• Rapid survey over wide temperature range with excellent resolution
• Simple method set up

The figure above shows the Hi-Res TGA results for a polyurethane material by standard and Hi-Res TGA. The superior resolution provided by the Hi-Res technique is clearly evident in both the TGA weight loss and the first derivative (DTG) signals. The latter signal is especially useful in defining the onset and the end-set of the individual weight loss segments, as well as indicating subtle events that provide a “fingerprint” of the sample.

MTGA

TA’s patented MTGA* is another TA Instruments innovation that offers advantages for material decomposition studies. Developed from the proprietary heater control technology utilized by Hi-Res TGA and MDSC, MTGA produces model-free kinetic data. Activation energy can be calculated real-time and studied as a function of time, temperature, and conversion.

Benefits of MTGA include:

• Increased productivity for studying kinetics
• Model-free kinetic data
• Can be combined with Hi-Res for better separation of overlapping weight losses
• Direct measurement of activation energy

DTA signal

The DTA signal is a qualitative measurement of endothermic and exothermic reactions occurring in the TGA. This signal can also be used for temperature calibration by using melting point standards.

Discovery Mass Spec

The Discovery MS is a benchtop quadrupole mass spectrometer, designed and optimized for  evolved gas analysis. It features industry-standard technology configured for the efficient transfer,  and rapid detection of offgas from the TGA furnace. Parts per billion (ppb) sensitivity is ensured with our state-of-the-art quadrupole detection system, including a closed ion source, a triple mass filter and a dual (Faraday and Secondary Electron Multiplier) detector system. This analyzer configuration is selected to optimize sensitivity and long-term stability performance.

Control of the experimental parameters and analysis of the mass spectral data is achieved through a user-friendly, recipe-driven software interface. Data collection can be triggered directly from the  TGA software, and the resulting MS  data can  be combined  with the corresponding TGA results for direct overlaying and comparison.

In Hi-Res TGA, the heating rate is controlled by the decomposition rate of the sample. The Discovery TGA 5500 and 550 designs are ideal for these measurements with rapid response furnaces for precise temperature control, and sensitive thermobalances designed to quickly detect small weight changes.

Benefits of Hi-Res TGA include:

• Separation of broad and overlapping weight losses
• Increased productivity with better resolution
• Rapid survey over wide temperature range with excellent resolution
• Simple method set up

The figure above shows the Hi-Res TGA results for a polyurethane material by standard and Hi-Res TGA. The superior resolution provided by the Hi-Res technique is clearly evident in both the TGA weight loss and the first derivative (DTG) signals. The latter signal is especially useful in defining the onset and the end-set of the individual weight loss segments, as well as indicating subtle events that provide a “fingerprint” of the sample.

MTGA

TA’s patented MTGA* is another TA Instruments innovation that offers advantages for material decomposition studies. Developed from the proprietary heater control technology utilized by Hi-Res TGA and MDSC, MTGA produces model-free kinetic data. Activation energy can be calculated real-time and studied as a function of time, temperature, and conversion.

Benefits of MTGA include:

• Increased productivity for studying kinetics
• Model-free kinetic data
• Can be combined with Hi-Res for better separation of overlapping weight losses
• Direct measurement of activation energy

EGA Furnace

Optional Evolved Gas Analysis (EGA) furnace for the TGA 55 and TGA 550.

Features & Benefits

• Ambient to 1000 °C
• Heating rates of 0.1 to 50 °C/min linear controlled
• Low volume, vacuum tight, and quartz lined for good evolved gas results
• Quartz liner makes furnace easy to clean

TGA Pans

Pan Specifications

DTA signal

The DTA signal is a qualitative measurement of endothermic and exothermic reactions occurring in the TGA. This signal can also be used for temperature calibration by using melting point standards.