A Versatile Hot Stage Microscope Unit

Charsley, Edward L.; Kamp, A. C. F.

doi:10.1007/978-3-0348-7413-7_45

Cited by 5 publications

(5 citation statements)

References 3 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…After the bubbling has subsided, the solid partially decomposed anhydrous magnesium nitrate remains stable until a final melt is observed at 438 °C. These processes agree with those identified in earlier literature [29,30].…”

Section: Thermal Degradation Of Magnesium Nitrate Hexahydratesupporting

confidence: 93%

“…Simultaneous DTA-mass spectrometry studies indicated that it was not possible to dehydrate the hexahydrate without some decomposition of the nitrate taking place a temperatures as low as 130 °C [28]. Thermomicroscopy experiments indicated that the spikey nature of the DTA and evolved gas profiles was due to the vigorous evolution of the gaseous products from the aqueous melt [29].…”

Section: Thermal Degradation Of Magnesium Nitrate Hexahydratementioning

confidence: 99%

See 1 more Smart Citation

Applications of a simultaneous differential scanning calorimetry–thermomicroscopy system

Ashton

Charsley

Harding

et al. 2021

J Therm Anal Calorim

View full text Add to dashboard Cite

A simultaneous DSC–thermomicroscopy system (DSC450 Linkam Scientific) was applied to the study of phase transitions in rubidium nitrate and silver iodide, the oxidation of polyethylene, the thermal degradation of polylactic acid and magnesium nitrate hexahydrate, and the reversible transitions in thermochromic inks. The results demonstrated the benefits of obtaining simultaneous optical data, both images and light intensity measurements, with DSC, particularly in the interpretation of complex processes and the detection of events with small changes in enthalpy.

show abstract

Section: Thermal Degradation Of Magnesium Nitrate Hexahydratesupporting

confidence: 93%

Section: Thermal Degradation Of Magnesium Nitrate Hexahydratementioning

confidence: 99%

Applications of a simultaneous differential scanning calorimetry–thermomicroscopy system

Ashton

Charsley

Harding

et al. 2021

J Therm Anal Calorim

View full text Add to dashboard Cite

show abstract

“…Hot‐stage microscopy (also called thermomicroscopy) is a well‐established thermal analysis technique for studying the optical properties of a material as a function of temperature 9 . Thermal processes, including glass transitions, phase changes, melting and decomposition, can be monitored 10 .…”

Section: Introductionmentioning

confidence: 99%

“…8 Hot-stage microscopy (also called thermomicroscopy) is a wellestablished thermal analysis technique for studying the optical properties of a material as a function of temperature. 9 Thermal processes, including glass transitions, phase changes, melting and decomposition, can be monitored. 10 Most systems allow for the recording of images either as videos 11 or a series of pictures taken at set time or temperature intervals.…”

Section: Introductionmentioning

confidence: 99%

Application of hot‐stage microscopy direct analysis in real time mass spectrometry (HDM) to the analysis of polymers

Ashton

Harding

Parkes

et al. 2019

Rapid Comm Mass Spectrometry

View full text Add to dashboard Cite

Rationale. Polymers are ubiquitous and characterisation of their chemical, thermal and mechanical properties is important in many applications. HDM is a new technique which combines optical measurements with the benefits of ambient ionisation mass spectrometry. Physical and chemical information can be obtained as a function of sample temperature, in real-time. Methods. Samples were placed on a miniaturised hot-stage between a custom-made DART source and the ion trap mass spectrometer inlet, and subjected to both linear and cycled temperature programmes. Optical images were collected using a digital microscope and mass spectra (positive and negative ion) were recorded simultaneously. Results. Mass spectra and optical images were used to monitor the thermal expansion and release of volatile oligomers from both medical and domestic grades of silicone. Series of ions separated by 74 m/z were observed, consistent with the SiOMe2 monomer; the median mass of these increased with increasing temperature up to the decomposition point (340-400 ºC). The abundance of volatile material produced decreased with repeated thermal cycling. The coefficients of thermal expansion were calculated from optical data and were in agreement with conventional measurements (2.7-3.6 x 10-4 ºC-1). Two samples of beach sand analysed for the presence of microplastics were found to contain polyethylene and polystyrene, respectively. Conclusions. Results indicate that the novel technique of HDM can be successfully applied to the characterisation of a wide range of polymers including those in complex matrices.

show abstract

“…Hot-stage microscopy (also called thermomicroscopy) is a well-established thermal analysis technique for studying the optical properties of a material as a function of temperature . Hot-stages coupled with compound microscopes, often with polarizing filters, have been used to study the melting, nucleation, and crystal growth processes in organic materials such as pharmaceuticals .…”

mentioning

confidence: 99%

An Integrated Hot-Stage Microscope–Direct Analysis in Real Time–Mass Spectrometry System for Studying the Thermal Behavior of Materials

2017

View full text Add to dashboard Cite

This paper describes a new analytical instrument that combines a precisely temperature-controlled hot-stage with digital microscopy and Direct Analysis in Real Time-mass spectrometry (DART-MS) detection. The novelty of the instrument lies in its ability to monitor processes as a function of temperature through the simultaneous recording of images, quantitative color changes, and mass spectra. The capability of the instrument was demonstrated through successful application to four very varied systems including profiling an organic reaction, decomposition of silicone polymers, and the desorption of rhodamine B from an alumina surface. The multidimensional, real-time analytical data provided by this instrument allow for a much greater insight into thermal processes than could be achieved previously.

show abstract

A Versatile Hot Stage Microscope Unit

Cited by 5 publications

References 3 publications

Applications of a simultaneous differential scanning calorimetry–thermomicroscopy system

Applications of a simultaneous differential scanning calorimetry–thermomicroscopy system

Application of hot‐stage microscopy direct analysis in real time mass spectrometry (HDM) to the analysis of polymers

An Integrated Hot-Stage Microscope–Direct Analysis in Real Time–Mass Spectrometry System for Studying the Thermal Behavior of Materials

Contact Info

Product

Resources

About