Big Chemical Encyclopedia

Chemical substances, components, reactions, process design ...

Articles Figures Tables About

Peltier cooling

High-energy resolution (300 eV Peltier cooled 0.04° 20 FWHM)... [Pg.645]

PCD Peltier-cooled detection PPIP Packed purged injection port... [Pg.758]

When a Joule heating or a Peltier cooling are used to compensate part of the heat absorbed or liberated in the calorimeter cell, Eq. (17) gives... [Pg.209]

The efficiency of this method has been demonstrated for several types of heat-flow calorimeters. The rather long time constant of a Calvet-type calorimeter (200 sec), for instance, is decreased to 10 sec, when exact Peltier cooling is used (61). Similarly, the time constant of calorimeters... [Pg.223]

Light non-methane hydrocarbons (NMHCs) were measured using an automated GC-FID system with large volume sample collection onto a Peltier cooled carbon sieve trap followed by on-line thermal desorption, and separation on an aluminium oxide PLOT capillary column. The system deployed at Cape Grim has been described in more detail in a previous paper (Lewis et al., 2001). [Pg.3]

Tian s instrument had several important advantages over other types of calorimeter available at the time, such as isoperibol or adiabatic instruments (1) It could monitor rather small temperature changes (less than 10-4 K) and therefore minute samples could be used (2) it could be applied to investigate the thermochemistry of very slow phenomena (up to about 24 h) and (3) the use of the compensating Peltier cooling or Joule heating allowed one to investigate the... [Pg.138]

Pectin, 20 345, 346 Peltier cooling, 22 209, 224 Penicillins, hydrolysis of, catalytic action of cycloheptaamylose on, 23 231 Pentacarbonylmethylmanganese, reaction on alumina, 35 195... [Pg.172]

Peltier cooling devices, noise reduction in PM tubes,... [Pg.769]

Figure 5.15 Experimental arrangement of microconcentric PFA nebulizer with heated cyclonic spray chamber and Peltier cooled multipass condenser APEX. (Reproduced by permission of Element Scientific Inc., Omaha). Figure 5.15 Experimental arrangement of microconcentric PFA nebulizer with heated cyclonic spray chamber and Peltier cooled multipass condenser APEX. (Reproduced by permission of Element Scientific Inc., Omaha).
The experimental setup has been described in detail elsewhere [10]. The current setup includes a peltier cooled GaAs photomuliplier to record weak signals. The intensity of the three beams was kept below 10 pJ for each beam in order to prevent distortion of the transients. At higher intensities a time independent signal can be observed and negative values of the exponent on Eq. 1 deplete the transient. The transients were recorded with a time resolution of 33 fs which is below the temporal width of the pump, dump and probe pulses (80fs from Grenouille measurement). [Pg.262]

See other pages where Peltier cooling is mentioned: [Pg.1642]    [Pg.126]    [Pg.132]    [Pg.758]    [Pg.630]    [Pg.638]    [Pg.644]    [Pg.199]    [Pg.200]    [Pg.205]    [Pg.223]    [Pg.224]    [Pg.101]    [Pg.125]    [Pg.42]    [Pg.138]    [Pg.409]    [Pg.58]    [Pg.61]    [Pg.176]    [Pg.293]    [Pg.506]    [Pg.113]    [Pg.129]    [Pg.144]    [Pg.438]    [Pg.274]    [Pg.125]    [Pg.117]    [Pg.101]    [Pg.19]    [Pg.112]    [Pg.159]    [Pg.72]    [Pg.414]    [Pg.80]    [Pg.463]    [Pg.282]   
See also in sourсe #XX -- [ Pg.126 ]

See also in sourсe #XX -- [ Pg.209 , Pg.224 ]

See also in sourсe #XX -- [ Pg.61 ]

See also in sourсe #XX -- [ Pg.128 ]



SEARCH



Peltier

Peltier cooling element

Peltier cooling power

Peltier cooling stage

Peltier-cooled sample stage

Spray chambers Peltier-cooled

© 2024 chempedia.info