Examined were a quadrupole-based, hexapole collisions cell CC-ICP-MS and a double-focusing sector field SF-ICP-MS. Due to the importance of precise and accurate isotope ratio determination in environmental, clinical and nutritional studies, a thorough investigation of the critical instrumental ...
In the last past years, ICPMS equipped with collision/reaction cell system have been developped. The addition of one or several gas in the system permit the removal of these interferences. Flow rates of hydrogen and helium were carefully optimised to remove efficiently the interferences on m/z ...
网络碰撞室;碰撞区 网络释义
A third large contributor to risk in many cases, together with process releases and blowout, is ship collision. This is normally grouped into one category, although it covers a set of scenarios that are very different with respect to how the probability of the events is modeled. The discussion...
A laser ionization time-of-flight mass spectrometer with an ion guide collision cell has been developed for the elemental analysis of solids. The system has successfully solved the contradiction between resolution and ions with large kinetic energy generated in the ion source (with 109–1010 W ...
The invention discloses an anti-collision method and an anti-collision system for arm supports. The method comprises the following steps of monitoring the distance between every two arm supports; when the distance between any two arm supports is smaller than a first preset value and is greater ...
J.W. McConkey Explore book B COLLISION CELL An electron–atom collision is possible anywhere along the path taken by an electron as it travels from the source to the electron collector. However, an electron’s speed will vary along this path in accord with its electrical potential. The ...
Collision times in plasmas are usually defined in connection with the time evolution of the ensemble-averaged scattering angle. Extrapolating the short-time behaviourshort(t), one obtains the collision timetcby settingshort(tc) = π/2. We have shown with the help of computer simulations that this...
On a frequency hopping system, the medium is interrupted periodically for hopping (e.g. every 20 ms), so, the smaller the packet, the smaller the chance that the transmission will be postponed after dwell time. It does not make sense to introduce a new LAN protocol that cannot deal with...
The interaction of an intense optical-maser field with excited atoms in a gas discharge leads to a considerable change in the population of those levels which are resonant at the maser frequency. This will cause a change in the population of other levels that are connected to the maser levels...