公开(公告)号：US3494174A

公开(公告)日：1970-02-10

申请号：US3494174D

申请日：1968-01-30

Applicant: VARIAN ASSOCIATES

Inventor： GREEN DONALD E ,  LITTLEJOHN DUANE P

IPC: G01N30/44 ,  G01N31/08

CPC classification number: G01N30/44

公开(公告)号：US3592044A

公开(公告)日：1971-07-13

申请号：US3592044D

申请日：1968-08-01

Applicant: VARIAN ASSOCIATES

Inventor： GREEN DONALD E ,  LITTLEJOHN DUANE P

IPC: G01N30/62 ,  G01N30/72 ,  G01N30/84 ,  G01N31/08 ,  B01J17/28

CPC classification number: G01N30/84 ,  G01N30/7206 ,  G01N2030/623 ,  G01N2030/8411 ,  G01N2030/122

Abstract: A gaseous sample handling apparatus utilizing the principles of condensation and revaporization to allow selected quantities of sample to be temporarily stored within the flow path connecting a gas chromatograph and a gas analyzer so that the samples can at some later time be reintroduced into the flow stream at predetermined mass flow rates. Likewise, the apparatus permits the preferential reshaping of constituent peaks in the effluent of a gas chromatograph.