Method of sample introduction in the micro liquid chromatography

Details Method of sample introduction in the micro liquid chromatography Method of sample introduction in the micro liquid chromatography

1977-08-31

1978-07-25

Adee, John

Liquid purification or separation

With alarm, indicator, register, recorder, signal or...

Responsive to fluid flow

210141, 210198C, 73 611C, B01D 1508

Patent

active

041027825

ABSTRACT:
A method of accurate sample introduction, while holding a good reproductivity, into a chromatographic system by means of employing a pulse-motor as a driving source of a syringe for holding the mobile phase, inversely rotating the same pulse-motor by imparting a certain predetermined number of pulses during the sample collecting or picking-up period in order to cause the syringe to make a sucking action, and making the syringe suck certain predetermined amount of the sample from an open end of a mobile phase supplying line which has been disconnected from the column, and an apparatus for actualizing the method.

REFERENCES:
patent: 3504799 (1970-04-01), Ogle
patent: 3575295 (1971-04-01), Yoshida

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