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A new general-purpose isothermal microcalorimeter for use at temperatures up to 200 degrees C

Wadsö, Ingemar LU and Wadsö, Lars LU (2003) In Thermochimica Acta 405(1). p.15-20
Abstract
The design and some properties of a new general-purpose isothermal microcalorimeter are reported. The instrument is a twin thermopile heat conduction calorimeter, which is designed for use up to 200 degreesC. The calorimetric units and surrounding heat sink are suspended inside a hollow aluminium construction, which is thermostated. Above that unit a second thermostated block is positioned and the whole assembly is suspended inside a Dewar vessel. When the instrument is used at room temperature and below, the thermostated units are cooled by use

f an insertion Peltier effect cooler. The instrument can be used with a wide range of different reaction vessels (diameter 14 mm). Baseline experiments have been conducted in the... (More)
The design and some properties of a new general-purpose isothermal microcalorimeter are reported. The instrument is a twin thermopile heat conduction calorimeter, which is designed for use up to 200 degreesC. The calorimetric units and surrounding heat sink are suspended inside a hollow aluminium construction, which is thermostated. Above that unit a second thermostated block is positioned and the whole assembly is suspended inside a Dewar vessel. When the instrument is used at room temperature and below, the thermostated units are cooled by use

f an insertion Peltier effect cooler. The instrument can be used with a wide range of different reaction vessels (diameter 14 mm). Baseline experiments have been conducted in the temperature range 15-200 degreesC. Typical values obtained during 10 h periods at 200 degreesC are +/-3 and +/-10 nW for the baseline drift and baseline fluctuations, respectively. The heat detection limit, determined by release of electrical energy, is about 2 muJ. Preliminary stability measurements have been conducted at 100 degreesC on samples of stabilised and non-stabilised polyamide film. (C) 2003 Elsevier Science B.V. All rights reserved. (Less)
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author
organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
Isothermal microcalorimeter, Nanowatt, 200 °C, Stability measurements
in
Thermochimica Acta
volume
405
issue
1
pages
15 - 20
publisher
Elsevier
external identifiers
  • wos:000186127000003
  • scopus:0344033884
ISSN
0040-6031
DOI
language
English
LU publication?
yes
id
59bcde93-ba0b-454a-b698-b8532ec3cc32 (old id 122254)
date added to LUP
2007-07-12 13:46:13
date last changed
2018-05-29 10:45:59
@article{59bcde93-ba0b-454a-b698-b8532ec3cc32,
  abstract     = {The design and some properties of a new general-purpose isothermal microcalorimeter are reported. The instrument is a twin thermopile heat conduction calorimeter, which is designed for use up to 200 degreesC. The calorimetric units and surrounding heat sink are suspended inside a hollow aluminium construction, which is thermostated. Above that unit a second thermostated block is positioned and the whole assembly is suspended inside a Dewar vessel. When the instrument is used at room temperature and below, the thermostated units are cooled by use <br/><br>
f an insertion Peltier effect cooler. The instrument can be used with a wide range of different reaction vessels (diameter 14 mm). Baseline experiments have been conducted in the temperature range 15-200 degreesC. Typical values obtained during 10 h periods at 200 degreesC are +/-3 and +/-10 nW for the baseline drift and baseline fluctuations, respectively. The heat detection limit, determined by release of electrical energy, is about 2 muJ. Preliminary stability measurements have been conducted at 100 degreesC on samples of stabilised and non-stabilised polyamide film. (C) 2003 Elsevier Science B.V. All rights reserved.},
  author       = {Wadsö, Ingemar and Wadsö, Lars},
  issn         = {0040-6031},
  keyword      = {Isothermal microcalorimeter,Nanowatt,200 °C,Stability measurements},
  language     = {eng},
  number       = {1},
  pages        = {15--20},
  publisher    = {Elsevier},
  series       = {Thermochimica Acta},
  title        = {A new general-purpose isothermal microcalorimeter for use at temperatures up to 200 degrees C},
  url          = {http://dx.doi.org/},
  volume       = {405},
  year         = {2003},
}