公开(公告)号：US06291802B1

公开(公告)日：2001-09-18

申请号：US09705402

申请日：2000-11-03

申请人： Gordon C. Ford

发明人： Gordon C. Ford

IPC分类号： F27B938

CPC分类号： F27B17/02 ,  F27D1/18

摘要： A sample introduction system includes a drop chamber which can be sealed and outgassed and which includes a movable jaw selectively holding the sample in position above a conduit communicating with an open crucible for receiving a sample once the jaw has been moved to an open position releasing the sample. The jaw is actuated by a magnetic field which moves the jaw in an entirely enclosed system, thereby preventing the introduction of atmospheric contaminants during the operation of the sample dropping jaw from a closed, sample holding position to an open sample releasing position. By providing a magnetic actuator, such as a solenoid, for operation of the jaw, the sample chamber remains sealed during the sample dropping operation preventing contaminants from interfering with the analytical results.

摘要翻译： 样品引入系统包括可以密封和脱气的液滴室，其包括可动夹爪，其可选地将样品保持在与开放坩埚连通的导管上方的位置，一旦颚已经移动到打开位置，释放 样品。 钳口由磁场驱动，该磁场使颚板在完全封闭的系统中移动，从而防止在将样品滴下钳口从关闭的样品保持位置操作到打开的样品释放位置期间引入大气污染物。 通过提供诸如螺线管的磁性致动器，用于钳口的操作，在样品滴下操作期间样品室保持密封，防止污染物干扰分析结果。