STA PT 1000
STA (TG-DSC/DTA) Thermogravimetric Analyzer
Description
On point
The STA PT 1000 is dedicated to analysis of organic materials in a relatively low temperature range up to 1000°C. The TG-DSC is a top loading Thermobalance, which offers a highly user-friendly design. Even at a sample weight of up to 10g the Tara is done electronically. The specially designed furnaces allow fast heating and cooling rates as well as a highly precise temperature control.
The system can be optionally equipped with a coupling device for EGA (Evolved Gas Analysis). The instrument is highly suitable for thermal composition, thermal stability and oxidation studies.
Features
- Top Loading sub microgram balance
- Temperature range RT up to 1000°C (Sample Temp.)
- Exchangeable measuring systems TG – DTA/DSC
An optional 42/84 position sample robot in combination with the optional automatic gas control and automatic evacuating system enables long term unattended operation.
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Specifications
| Model | STA PT 1000* |
|---|---|
| Temperature range: | RT up to 1000°C |
| Price range: | $ |
| Sample weight: | up to 25 g |
| Resolution: | 0.5 ug |
| Sensor: | E/K/S |
| Vacuum: | 10E-2mbar (if operated below 800°C) |
| Heating rates: | 0,01 up to 100°C/min |
| Sensor: | TG TG – DTA TG – DSC |
| Options: | |
| DTA – Calc.: | optional |
| Envolved Gas Analysis: | optional |
| Sample robot: | 42 positions |
*Specs depend on configurations
| Model | STA PT 1000 HiRes* |
|---|---|
| Temperature range: | RT up to 1000°C |
| Price range: | $$ |
| Sample weight: | up to 5 g |
| Resolution: | 0.1 ug |
| Sensor: | E/K/S |
| Vacuum: | 10E-2mbar |
| Cooling rates: | < 15min (1000°C – 100°C) |
| Sensors: | TG TG – DTA TG – DSC TG – DSC (Cp) |
| Options: | |
| DTA – Calc.: | optional |
| Envolved Gas Analysis: | optional |
| Sample robot: | 84 positions |
*Specs depend on configurations
Accessories for TG-DSC instruments
Our STA can be equipped with an unmatched amount of different user exchangeable TG-DSC, TG-DTA or TG sensors.
- Software for determination of calculated DTA signal
- Different types of vacuum and turbo molecular pumps
- Selection of manual, semi-automatic and automatic (MFC) Gas control boxes
- Broad range of crucibles (gold, silver, platinum, quartz glass, alumina oxide, aluminum, high pressure stainless steel, etc.)
- Sample robot for up to 84 positions
Software
All LINSEIS thermo analytical instruments are PC controlled. The individual software modules exclusively run under Microsoft® Windows® operating systems. The complete software consists of 3 modules: temperature control, data acquisition and data evaluation. The 32 bit software incorporates all essential features for measurement preparation, execution, and evaluation of a STA measurement. Thanks to our specialists and application experts, LINSEIS was able to develop comprehensive easy to understand user friendly application software.
General Features
- Program capable of text editing
- Data security in case of power failure
- Thermocouple break protection
- Repetition measurements with minimum parameter input
- Evaluation of current measurement
- Curve comparison up to 32 curves
- Storage and export of evaluations
- Export and import of data ASCII
- Data export to MS Excel
- Multi-methods analysis (DSC TG, TMA, DIL, etc.)
- Zoom function
- 1 and 2 derivation
- Programmable gas control
- Statistical evaluation package
- Free scaling
TG – Features
- Mass change as % and mg
- Rate Controlled Mass Loss
- Evaluation of mass loss
- Residue mass evaluation
- “How to dynamic rate TGA measurement” (optional)
HT-DSC – Features
- Glass transition temperature
- Curve subtraction
- Complex peak evaluation
- Multipoint calibration for sample temperature
- Multipoint calibration for change of enthalpy
- Cp calibration for heat flow
Applications
Application example: Vitriol of Copper
Inorganic salts first set their crystal water free. Vitriol of Copper heated with 10°C/min. results in a first TG stage, which corresponds to 4H2O. TG and DTA show that the curve is made up of two separate steps, one closely behind the other. At around 250°C the most strongly bound water evaporates.
Application example: Decomposition of Rubber
In the first step of weight loss, the dehydration of the sample takes place. The amount of water was 9.27%. In the second reaction step, the volatile components are released by pyrolysis under N2 atmosphere. The amount of these components is 35.99%. For the third reaction step, the atmosphere is changed to O2 – all organic components are burned out. The loss in weight is 14.33%. The remaining rest of 40.41% are inorganic components like ashes, slake or fillers.
External Application:
Production of bacterial cellulose by Komagataeibacter xylinus using mango waste as alternative culture medium (published Revista Mexicana de Ingeniería Química)
CHARACTERIZATION AND APPLICATION TESTS OF KAOLINITE CLAYS FROMABOUDEIA (SOUTHEASTERN CHAD) IN FIRED BRICKS MAKING (published Scientific African)
Synthesis and characterization of hydrophobic, ultra-fine fibres based on an organic–inorganic nanocomposite containing a polyimide functionality (published Polymers and Polymer Composites)
