Innovative options that expand capabilities of your ICP – MS

ICP - MS在PPB和子PPB水平浓度下提供痕量元素浓度。分析通常需要在分析之前在溶液中溶解固体样品。本文审查了三种创新选项，将应用程序扩展许多折叠，并对实验室吞吐量有重大贡献。

Collision cells for removal of polyatomic species

ICP – MS interferences and their removaldiscussed the common interferences encountered in ICP – MS analysis.

通过使用基于反应气体和分析物同位素之间的受控反应的碰撞细胞除去多杀灭干扰。每个反应气体选择性地反应某些多元物质，而其他反应气体仍然存在并导致残留干扰。通过不同的制造商可获得不同的碰撞单元配置。Perkin Elmer碰撞细胞基于四轮节，而安捷伦使用基于八孔基的反应系统，具有改进的离子聚焦和提高碰撞效率

Dual View ICP

Conventionally radial view ICP torches are in use. In the axial view arrangement the system views the plasma over its axial length, i.e, over a longer path than radial view only systems. This results in 5– 10 fold improvement in detection limits. On the other hand radial viewing of plasma permits analysis at higher concentrations. Some manufacturers provide both viewing options thereby permitting working over a large sample concentration range without the need for serial dilutions.

Laser Ablation

Laser ablation extends ICP – MS analysis to analysis of solid samples without the need for sample digestion. It is a process involving removal of material from a surface by irradiation with a laser beam. The material on heating by the laser beam evaporates or sublimates and is led directly into the plasma of the spectrometer. The system is computer controlled by real-time video imaging system capable of providing the elemental composition map of the sample surface. The accessory can be used for samples originating from materials science, biological, geological, archaeological and environmental sources.