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在现代质谱计中,利用磁场控制以扩展其功能已经成为仪器的一个重要手段。目前各国商品仪器,如日本的D300,德国的MAT312,英国的ZAB等新型产品均应用了磁场控制,我国已进口了一批这种类型的仪器。本文介绍场控的工作原理及其基本电路,以便用户更好地使用已有场控的仪器;或对那些没有场控的仪器加以改进,自行增添场控部分,更好地发
In modern mass spectrometry, the use of magnetic field control to expand its functionality has become an important tool for instrumentation. At present, all kinds of new products such as D300 in Japan, MAT312 in Germany and ZAB in the United Kingdom all use magnetic field control. A number of such instruments have been imported into China. This article describes the working principle of field control and its basic circuit, so that users can better use the existing field-controlled instruments; or those who do not have field-controlled instruments to be improved, to increase the field-control part of the better hair