| 摘要 |
<p>An electrospray ionization mass spectrometric device directly coupled to a micro LC, which in advance prevents the clogging of a micro LC column, pipelines and an ESI capillary, and records an alarm in data and shuts down the system when clogging occurs, thereby enabling high-reliability micro LC direct-coupling. An electrospay ionization mass spectrometric device or a system therefor which is provided with an electrospray ionization source (4) for introducing a sample solution from a chromatograph (1) into a very fine tube to produce ions under the atmospheric pressure, and which introduces ions produced in the ionization source to a mass spectrometer (17) provided in a vacuum chamber for mass spectroscopic measuring therein, characterized in that the device or the system has a display means for measuring the current value or intensity of ions having a specific mass in the sample solution and notifying an abnormal condition when the current value or intensity is below a threshold value.</p> |
