Introduction
A differential scanning calorimeter (DSC) is an analytical instrument used to measure the heat flow into or out of a sample as a function of temperature or time, while the sample and a reference are heated or cooled at a controlled rate, and it is used to study thermal transitions, such as melting, crystallization, glass transition, and chemical reactions, in polymers, pharmaceuticals, foods, metals, and many other materials. In operation, the sample and an empty reference pan are heated or cooled at a controlled rate in the DSC cell, and the instrument measures the difference in the heat flow between the sample and the reference, which is related to the heat absorbed or released by the sample; a transition in the sample, such as melting, appears as an endothermic or exothermic peak in the DSC curve, and the temperature of the transition, the enthalpy change, and the heat capacity can be determined from the curve. Differential scanning calorimeters are used for studying the thermal properties of polymers, such as the glass transition, melting, and crystallization; for characterizing pharmaceutical materials, including polymorphism and stability; for analyzing foods, such as fats and starches; for studying metals and alloys; for studying proteins and other biological materials; for quality control; for research; and for many other applications, and they are available as benchtop instruments with features such as precise temperature control, high sensitivity, and data analysis software. With their measurement of heat flow, differential scanning calorimeters are essential instruments for thermal analysis.
Differential Scanning Calorimeter LDSC-T2015
Differential Scanning Calorimeter features a temperature range of RT to 1250℃ and a heating rate of 0.1 to 80℃/min. It is equipped with advanced an imported high-frequency core control...
Differential Scanning Calorimeter LDSC-T2014
Differential Scanning Calorimeter operates within a temperature range of -40 to 600°C, ensuring reliable thermal analysis. A heating rate of 0.1 to 100°C per minute allows precise cont...
Differential Scanning Calorimeter LDSC-T2011
Differential Scanning Calorimeter temperature range within RT to 600℃. Imported high-sensitivity sensors are used to enhance signal sensitivity and accuracy effectively. Optimized dynam...
Differential Scanning Calorimeter LDSC-T2010
Differential Scanning Calorimeter has heat flow ranges from 0 to ± 600mW for precise quantitative analysis of energy changes in processes. Our calorimeter utilizes multiple thermocouple...
Differential Scanning Calorimeter LDSC-T2013
Differential Scanning Calorimeter Operates within a temperature range extending from ambient room temperature to 1550℃. Incorporate an innovative Platinum rhodium alloy sensor that ensu...
Differential Scanning Calorimeter LDSC-T2012
Differential Scanning Calorimeter is a compact and tabletop type fully automatic controlled unit. Features -150 to 550°C of temperature range with 0.1 to 80°C/min of heating rate and 1...
Standards
ASTM D3418-Standard Test Method for Transition Temperatures and Enthalpies of Fusion and Crystallization of Polymers by DSC
Complies with the above standards, but is not limited to them.
Features
1. Differential scanning calorimeter (DSC) for measuring heat flow vs temperature.
2. Precision thermal analysis for phase transitions, melting, crystallization and Tg.
3. Suitable for polymer, pharmaceutical, chemical, material, food and research labs.
4. Includes DSC cell, furnace, temperature control, software, cooling system and manual.
5. Supports thermal analysis for material characterization, quality control and research.
FAQ
Q1: What testing scenarios is this DSC mainly applied to?
A: The differential scanning calorimeter is used in polymer science, pharmaceutical development, chemical research, materials science, food analysis, cosmetics and research to measure the difference in heat flow between a sample and reference as a function of temperature or time for characterization of phase transitions, melting, crystallization, glass transition, curing, specific heat and thermal stability. It supports polymer thermal characterization (melting, crystallization, Tg, crosslinking), pharmaceutical polymorph and stability studies, chemical reaction and curing analysis, material thermal property measurement, food lipid and protein analysis, cosmetic raw material testing, and quality control of thermal properties. DSC is one of the most widely used thermal analysis techniques, providing essential data for material development and quality assurance.
Q2: What standards does the DSC comply with?
A: The differential scanning calorimeter follows relevant ISO, ASTM and GB/T standards for DSC measurement, including ISO 11357 for plastics, ASTM D3418 for polymer transitions, ASTM E793 for enthalpy, ASTM E1356 for glass transition, and relevant pharmacopoeial methods for pharmaceuticals. The hardware complies with IEC 61010 laboratory safety standards. Calibration should use certified reference materials (indium, tin, zinc, sapphire) traceable to international standards.
Q3: What is the warranty period for the whole machine and key components?
A: The whole DSC system is covered by a 12-month warranty. The DSC cell, furnace, temperature control, electronics, software and housing are covered, while crucibles/pans, reference materials, cooling fluid and fuses are consumables. Damage from improper use or unauthorized repair is excluded. Extended service contracts are standard for this analytical instrument.
Q4: Is this device difficult to operate? Is professional training required?
A: Operation requires trained analytical personnel familiar with thermal analysis, DSC operation and data interpretation. We provide comprehensive training, operation manuals and application support. Proper sample preparation, pan selection, calibration, method programming, cooling system operation and result interpretation are important for accurate, reliable thermal analysis.
Q5: What is the typical lead-time for order delivery?
A: Standard models require 7-30 working days. In-stock units can ship within 3-7 working days. Custom configurations or large built-to-order systems may require additional time, and we confirm the exact schedule before order confirmation.
Q6: Is regular calibration required? What is the recommended calibration cycle?
A: Temperature and enthalpy calibration with certified reference metals (indium, tin) recommended every 6-12 months. Routine verification before each analytical batch for regulated work. DSC cell condition checked. Cooling system performance verified. Full system performance verification annually. Software updates installed as needed.
Q7: Are supporting consumables universal?
A: DSC pans/crucibles (aluminum, platinum, gold, copper), reference materials, cooling fluid and purge gas are available from laboratory suppliers, though pan type should match the instrument. Long-term consumable cost depends on sample volume and cooling method.
Q8: Can I customize parameters or supporting accessories?
A: Customization includes temperature range, cooling system (liquid nitrogen, mechanical, RCS), sample capacity, autosampler, modulation capability (MDSC), high-pressure DSC, software features and accessories. Additional pans, cooling systems and accessories can be ordered separately. Custom orders extend delivery lead-time.
Q9: Does the purchase include on-site installation and commissioning service?
A: Yes, differential scanning calorimeters include on-site installation, commissioning, calibration, method setup and operator training by certified thermal analysis specialists. Site preparation guidance is provided before delivery.
Q10: What types of samples are compatible with this equipment?
A: The DSC analyzes solid, liquid and semi-solid samples including polymers, pharmaceuticals, chemicals, foods, cosmetics and metals within the sample size (typically 1-20 mg), temperature range and pan specification. Different sample types require specific pans (hermetic for volatile, pierced for outgassing, high-pressure for pressure). Samples should be representative and properly prepared (small, homogeneous pieces). Users should select appropriate pan type for the sample, use proper sample size (not too large to avoid thermal lag), calibrate with certified reference materials, use appropriate purge gas (nitrogen, air, oxygen), optimize heating/cooling rate, report results with method parameters (rate, gas, pan type) specified, and for regulated use, follow validated methods and data integrity requirements. The DSC cell should be cleaned regularly to prevent sample residue buildup. For volatile samples, use hermetic pans or lower temperatures. For reactive samples, be aware of potential exotherms and use appropriate safety measures. The cooling system should be maintained per manufacturer schedule (liquid nitrogen level or mechanical cooler maintenance). Samples should be properly stored and handled to prevent moisture absorption or degradation before analysis.
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