| 摘要 |
PURPOSE:To analyze cyclic amines with a simple pretreatment and with good sensitivity by detecting the components separated by a molten silica capillary column with a surface ionization detector. CONSTITUTION:A liquid sample is attached to a tip part 8 of a moving needle 7 which moves upward and downward and thereafter, the tip part 8 is rapidly heated to evaporate the sample in a Van den Bergh type solventless sample introducing device 6. The sample evaporated by the flow of the carrier gas introduced from a carrier gas introducing port 9 is partly introduced into the molten silica capillary column 1 and the rest is discharged from a split-out flow passage 10 to the outside of the system. The cyclic amines separated by the column 1 are converted to positive ions on the surface of a platinum coil 4 heated to 450-600 deg.C of the surface ionization detector 2. The current flowing between a base (not shown) and a collector cylinder 5 is measured by these ions, by which the cyclic amines are detected. |
