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Calorimétrie différentielle à Balayage

Calorimétrie différentielle à Balayage

Calorimétrie différentielle à Balayage

Product catalog summary
Introduction to Differential Scanning Calorimetry (DSC)
The Differential Scanning Calorimetry (DSC) is a widely used thermal analysis technique for measuring endothermic and exothermic transitions as a function of temperature. It is applicable in characterizing polymers, pharmaceuticals, foods, biologicals, organic chemicals, and inorganics. Key transitions measured include glass transition (Tg), melting, crystallization, curing, cure kinetics, onset of oxidation, and heat capacity.
Performance and Design
The DSC features a revolutionary sensor design combining heat flux and power compensation, offering unmatched sensitivity and resolution. It supports reliable automation with a 64-position autosampler and operates over a wide temperature range from -180°C to 750°C.
Standards Compliance
The LINSEIS DSC complies with various national and international standards, including ASTM and DIN standards, ensuring reliable and standardized measurements.
Product Variants
LINSEIS DSC – 1000: A general-purpose DSC with a temperature range of -150°C to 725°C, designed for stability and reproducibility.
LINSEIS DSC – 1000 HiRes: A research-grade DSC with a broad temperature range of -180°C to 750°C, featuring the HR24 Sensor with 240 thermocouples for high sensitivity and resolution.
Sensor Technology
The HiperRes® Sensor line offers high resolution and sensitivity with 120 or 240 thermocouples. The glass ceramic sensor structure ensures durability and prevents oxidation, allowing for long-term use without aging effects.
Technical Specifications and Accessories
The DSC systems offer various heating and cooling rates, optional vacuum capabilities, and sample robots with different position capacities. Accessories include cooling systems, sample presses, and intracoolers for controlled temperature management.
Software Features
The LINSEIS software, compatible with Microsoft Windows, includes modules for temperature control, data acquisition, and evaluation. It supports features like temperature modulated DSC, curve comparison, multi-method analysis, and data export to MS Excel.
Applications
Food: DSC is used to determine melting points of substances like fructose, glucose, and saccharose.
Polymers: Analysis of Polyethylene terephthalate (PET) reveals its glass transition and crystallization properties.
Pharmaceuticals: Sorbitol's glass point is analyzed, showing changes with water content.
Oxidative Induction Time (OIT): The technique measures the oxidative stability of polyethylene under controlled conditions.
See more

Catalog excerpts

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Differential Scanning Calorimeter

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The Differential Scanning Calorimetry (DSC) is the most popular thermal standards such as: ASTM C 351, D 3417, D 3418, D 3895, D 4565, E 793, analysis technique to measure endothermic and exothermic transitions The instrument is used to characterize polymers, pharmaceuticals, foods/biologicals, organic chemicals and inorganics. Transitions measured include Tg, melting, crystallization, curing, cure kinetics, on- set of oxidation and heat capacity. This product was developed to provide a general purpose TM - DSC with a broad temperature range (-150 – 725°C) for all common applications. Unsurpassed...

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Technology Sensors Sample Heater Termopile Sensor Intracooler MR12 120 Thermocouples in a row ensure unparalleled resolution. The glass ceramic sensor designs ensure highest resolution and durability. This sensor is perfectly suited for day to day operation in research and quality control. HR24 The combined heat flux & power compensation sensor for most demanding application, 240 thermocouples ensure unsurpassed sensitivity and resolution. Even with smallest sample quantities and slow heating rates weak transitions can be detected. Sensors The key part of every DSC is the sensor, so don’t make...

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Technical Specifications Accessories Options Forced air cooling Quench air cooling system Enables controlled heating and cooling in the temperature range -40 up to 550°C. Enables controlled heating and cooling in the temperature range -90 up to 550°C. Liquid Nitrogen Quenching Enables controlled heating and uncontrolled cooling in the temperature range -150 up to 400°C. The accessory consists of a reservoir which can be filled with Liquid Nitrogen, ice water, etc. Liquid Nitrogen Cooling Unit Enables controlled heating and cooling in the temperature range -180 up to 750°C. This accessory consists...

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∙ Zoom function ∙ 1. and 2. Derivative All thermo analytical devices of LINSEIS are PC controlled and the in- ∙ Multiple smoothing functions dividual software modules exclusively run under Microsoft Windows ∙ Complex peak evaluation operating systems. The complete software consists of 3 modules: tem- ∙ Multipoint calibration for sample temperature perature control, data acquisition and data evaluation. The Linseis 32 ∙ Multipoint calibration for change of enthalpy – bit software encounters all essential features for measurement pre- ∙ Cp calibration for heat flow paration, execution and evaluation...

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The three evaluated substances (Fructose, Glucose and Saccharose) such as Fructose and Glucose can thus be recognized. Glucose Onset: 156.7°C Offset: 166.3°C Max: 161.9°C determined by means of Differential Scanning Calorimetry (DSC). For unknown substances. Even mixtures with identical molecular weight show distinctive melting points. These melting points can be precisely this the analytical method is frequently used for the determination of Fructose Onset: 115.9°C Offset: 137.7°C Max: 131.3°C Polyethylen terephthalate (PET) sample weight: 5mg heating rate: 10K/min PolyEthylenTherephtalat (PET)...

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Pharmaceuticals Sorbitol is frequently used as replacement for sugar in Sweets, Diet -0.15 products and as carrier substance for pharmaceuticals. The glass point Waterfree Sorbitol from water-free sorbitol at -3.9°C is increased to -28.7°C by adding 5.4% water. Both samples remain entirely amorphous after the smelting (took place before the heating up). OIT “Oxidative Induction Time”/Temperature 1400 brium the environment is changed from argon to oxygen. After an addi- Temperature transition dynamic/static 600 after 3min temperature equilibrium change from Ar to O2 Heat Flow 20.02min 200.3°C...

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LINSEIS GmbH Vielitzerstr. 43 95100 Selb Germany Tel.: (+49) 9287–880 - 0 Fax: (+49) 9287–70488 E-mail: [email protected] LINSEIS Inc. 109 North Gold Drive Robbinsville, NJ 08691 USA Tel.: (+1) 609 223 2070 Fax: (+1) 609 223 2074 E-mail: [email protected] Products: DIL, TG, STA, DSC, HDSC, DTA, TMA, MS/FTIR, In-Situ EGA, Laser Flash, Seebeck Effect Services: Service Lab, Calibration Service

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All Linseis Thermal Analysis catalogs and technical brochures

  1. LZT

    9  Pages

  2. L81_500LT

    3  Pages

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