LIQUID CHROMATOGRAPH ANALYZER AND TEMPERATURE CONTROL METHOD OF THE SAME

摘要

PROBLEM TO BE SOLVED: To provide a liquid chromatograph analyzer capable of improving the peak shape of a chromatogram.SOLUTION: A thermography camera 13 detects a piping outer wall temperature of a preheating part 5 and an outer wall temperature of a separation column 6. A temperature setting part 16 presets a center part temperature and an inner wall surface part temperature of the separation column 6 respectively. A temperature control part 17 adjusts the temperature of the preheating part 5 by means of a first temperature control unit 12 in accordance with the difference between the center part preset temperature of the separation column 6 and the detected piping outer wall temperature of the preheating part 5. The temperature control part 17 controls the temperature of the separation column 6 by means of a second temperature control unit 11 in accordance with the difference between the inner wall surface part preset temperature of the separation column 6 and the detected outer wall temperature of the separation column 6.