SE329025B - - Google Patents

Abstract

Abstract 1,257,091. Measuring thermal flow, electrically. LKB-PRODUKTER A.B. March 19, 1969 [March 20, 1968], No. 14539/69. Heading G1N. A liquid is analysed by measuring its thermal flow as it is advanced in a continuous stream or dropwise, with or without addition of a liquid reaction component, through a test cell comprising a zig-zag flow path 9 in a heat conducting slab surrounded by a thermopile (4). The thermopile is itself surrounded by a heat sink and is counterconnected to a similar thermopile to compensate for temperature changes of the heat sink. A heat exchanger (3) is provided for the incoming liquids. Electric heating elements 11, 12 are provided for calibration purposes. Restrictions 10 ensure good mixing of the liquid and reaction component. Dimensions and materials are exemplified. To monitor a slow reaction, flow may be interrupted. A succession of different liquids may be advanced dropwise, with interposed drops of rinsing agent. Peristaltic pumps may be used.

Inventors

• 👤 B Wadsoe
• 👤 P Monk

Bibliographic Details