TY - JOUR
AU - Pavinich, V.
AB - SIMPLE METHOD FOR LOW-TEMPERATURE INVE STIGA TION OF IR SPECTRA OF VOLATILE SUBSTANCES V. F. Pavinich UDC 535.343 The following specific difficulties are encountered in low-temperature investigations of the IR spectra of volatile substances using ordinary cryostats with vacuum heat insulation and with the sample in the form of a liquid-containing cuvette placed in the opening of the cooling-agent pipeline connected to the vessel contain- ing the cooling agent: ensuring airtightness of the sample-containing cuvette during evacuation of the cryo- slat; the danger of fracture of the cuvette windows during freezing of the substance; and inconveniences in selecting the optimal layer thickness. The difficulties increase when it is necessary to investigate substances boiling below room temperature. These difficulties are eliminated when a cryostat of simple design is used (Fig. 1).* The cryostat can be used for a wide range of materials and, because of better heat withdrawal from the sample and removal of the sample from the focal plane, ensures a temperature exceeding the temperature of the cooling agent by only a few degrees. (In cryostats of conventional designs, the temperature of the sample does not fall below 120~ during cooling with liquid nitrogen. ) The cryostat consists of 
TI - Simple method for low-temperature investigation of IR spectra of volatile substances
JF - Journal of Applied Spectroscopy
DO - 10.1007/BF00615453
DA - 2004-10-26
UR - https://www.deepdyve.com/lp/springer-journals/simple-method-for-low-temperature-investigation-of-ir-spectra-of-dMtoXPrbAj
SP - 385
EP - 386
VL - 28
IS - 3
DP - DeepDyve
ER -