“…Articles that are pertinent to the injection of liquid samples by the syringe method include Broerman (85) who modified a hypodermic system for direct on-column injection and the device of Jarrell and Allison (323) for multiple sample injections. A homemade syringe suitable for GC has been described (403) as well as a simple method for determining the volume of micropipets used in GC (674)• Also, advice is available on how' to eliminate small bubbles when filling a microsyringe (33) and on effective washing to remove traces of impurities from syringes, particularly when used with highly sensitive detectors (469).…”