如何防止ICP-MS实验室发生事故？

The design of modern ICP-MS systems incorporates several inbuilt safety features which prevent accidents. However, it is a well established fact that accidents are caused mostly due to carelessness and overconfidence and can be easily prevented if safety instructions are not overlooked.

It goes without saying that the instrument should be installed in aclean roomwhich is well ventilated and with entry restrictions imposed. You should be well versed with the safety signs affixed by the instrument manufacturer and observe the stipulated safety guidelines.

本文将提供必要的安全建议，这将有助于您进行分析，而不会发生任何不动的情况。

电气危害

The power supply of ICP-MS can generate extremely high voltages. Only authorized engineers should be permitted to carry out maintenance services. Do not disable safety devices and interlocks.

Opening instrument covers when instrument is powered can expose live components. Remember capacitors inside the instrument may remain charged even after disconnection. The instrument can remain potentially dangerous due to presence of residual high voltages.

无线电频率

The ICP-MS generates high amounts of radio frequency energy in the RF power supply and torch box. Do not disable safety interlocks which otherwise prevent you from operating the system if any shields or covers are open.

热表面和气体

即使在离子被关闭之后，割炬组件和界面仍然很热。避免触摸标有热表面符号的任何组件，并允许一段时间冷却。

在运行过程中，确保热和腐蚀性气体从仪器后部的排气管道有效地排出。

UV radiation

ICP-MS产生高强度UV辐射。如果在操作期间打开样品隔室，则安全互锁自动关闭等离子体源。样品隔室设置有一个用于安全观察等离子体的观察窗口。推荐使用保护紫外线磨损，因为直接观察可能导致视力永久损害。

Drain System

The drain system comprises of a receptacle made of high density polyethylene (HDPE) which collects the effluent from the sample introduction system. Never place the receptacle inside a closed cabinet as explosion or fire can result from accumulation of explosive gas mixtures in the closed space. Empty the drain regularly and monitor drain tubing for deterioration due to brittleness or cracking.

Gases

ICP-MS使用氩气进行操作。由于加压严重事故可能由误操作产生。与气体相关的主要危害是窒息，因为它可以在封闭环境中取代氧气。

Ammonia is used in collision cell applications. Contact with skin, eyes or inhalation can be harmful. On exposure the best remedy is to flush the exposed area with plenty of water for at least 15 minutes.

Chemical Hazards

ICP-MS涉及使用高度腐蚀性酸来消化样品。封闭系统消化should be adopted whenever possible. As far as possible avoid solvents that are hazardous to health such as benzene and methyl isobutyl ketone(MIBK). Ensure that all components coming in contact with such solvents are compatible and do not suffer from damage due to deterioration.