公开(公告)号：US3892968A

公开(公告)日：1975-07-01

申请号：US42161573

申请日：1973-12-04

Applicant: LOVELOCK JAMES EPHRAIM

Inventor： LOVELOCK JAMES EPHRAIM

IPC: G01N27/66 ,  G01T1/18

CPC classification number: G01N27/66

Abstract: Two electron capture detectors are connected together such that a gas flows through the first detector and then into the second detector. The potential across the first detector is switched regularly between maximum and minimum values and the signal derived from the second detector is modulated by this switching action whenever a strong electron absorber is present in the gas flow.

Abstract translation: 两个电子捕获检测器连接在一起，使得气体流过第一检测器，然后流入第二检测器。 第一检测器上的电势在最大值和最小值之间规则地切换，并且每当气流中存在强电子吸收体时，通过该开关动作来调制从第二检测器得到的信号。

公开(公告)号：US3870888A

公开(公告)日：1975-03-11

申请号：US25095372

申请日：1972-05-08

Applicant: LOVELOCK JAMES EPHRAIM

Inventor： LOVELOCK JAMES EPHRAIM

IPC: H01J41/08 ,  G01T1/16

CPC classification number: H01J41/08

Abstract: The invention relates to an electron capture detector having an ionisation chamber of large volume and into which a sample flows at a high flow rate, the terms ''''large'''' and ''''high'''' being relative to the hitherto accepted standards for electron capture detectors. Conveniently the ionisation chamber can be in the form of an elongated tube having a length which is an order of magnitude greater than any lateral dimension.

Abstract translation: 本发明涉及具有大体积电离室的电子捕获检测器，样品以高流速流动到其中，术语“大”和“高”是相对于电子捕获检测器迄今为止所接受的标准。 方便地，电离室可以是细长管的形式，其长度比任何横向尺寸大一个数量级。