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.

本文将提供基本的安全建议，以帮助您进行分析，而不会发生任何不良情况。

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

即使在血浆被关闭后，火炬部件和界面仍保持热量一段时间。避免触摸带有热表面符号的任何组件，并让一些时间冷却。

在操作过程中，确保有效地从仪器后部的排气管中有效排气热和腐蚀性气体。

UV radiation

ICP-MS会产生高强度的紫外线辐射。如果在操作过程中打开样品舱，则安全互锁会自动关闭等离子源。为样品室提供了一个查看窗口，以安全地查看等离子。建议使用防护性紫外线磨损，因为直接观看会导致视力永久损害。

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，严重事故可能导致不幸事故。与气体相关的主要危害是窒息的，因为它可以在封闭的环境中置换氧气。

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。封闭的系统消化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.