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Flow cell for calorimetric measurements

  • US 5,482,372 A
  • Filed: 03/11/1994
  • Issued: 01/09/1996
  • Est. Priority Date: 03/17/1993
  • Status: Expired due to Fees
First Claim
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1. A flow cell for calorimetric measurements comprising a body with at least two flow channels sharing one common outlet opening, and each one of said at least two flow channels having a separate inlet opening and extending to said outlet opening, said flow cell further comprising a thermoelectric detector for monitoring temperature changes, which occur during chemical or biochemical processes in a measuring volume being located below said at least two flow channels in close vicinity to said outlet opening of said at least two flow channels wherein said outlet opening extends vertically through said body and ends in a recess, which is provided in said body of said flow cell below said at least two flow channels, said recess being adapted to accommodate said thermoelectric detector and a spacer element, which is arranged between said body and said thermoelectric detector, said spacer element being provided with central bores, which communicate with said outlet opening, with said measuring volume and with an exit channel, which is provided in said body, and said spacer element having a height such, that a gap between said spacer element and an active surface of said thermoelectric detector defines said measuring volume, and whereby said body of said flow cell has a good thermal conductivity such, that fluids flowing through said at least two flow channels are thermostatizised prior to entering said measuring volume solely by flowing through said at least two flow channels and free of any external thermostatization means.

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