Inert sample introduction kits for ICP-MS are used whenever HF containing samples are to be analysed. Savillex worked closely with leading ICP-MS manufacturers to design a Scott-type inert sample introduction kit with true double–pass design for superior RSDs.
Savillex inert kits are available for all Agilent ICP-MS, PE NexION 300 Series ICP-MS and Thermo sector type ICP-MS, and come with sapphire or platinum torch injectors. Inert kits for Agilent ICP-MS are supplied with a genuine Agilent quartz torch and are supplied as original equipment with the 7700, 7800, 7900 and 8800 Series. These kits are the highest performing inert kits available for ICP-MS, and used by all leading semiconductor labs around the world. Add a Savillex C-Flow nebulizer to make a complete inert sample introduction system.
- PFA construction. O-ring free end cap with make-up gas port and 6mm OD nebulizer port
- True double pass design
- Kit includes spray chamber, end cap, connector, injector and holder, and genuine Agilent quartz torch
- All PFA parts are precleaned in HNO3/HF
Technical Features
Savillex’s superior moulding and secondary finishing capabilities have enabled the design of PFA inert kits with the long term stability and reliability of a traditional quartz spray chamber.
Until now, the performance of inert spray chambers has been compromised by limitations in moulding and manufacturing capabilities. Savillex set out to eliminate these compromises. The kits comprise of a PFA Scott-type spray chamber, PFA connecting tube and PFA injector assembly, fitted to a semi-demountable quartz torch. The spray chamber is 35mm outer diameter with a PFA inner tube held precisely in position by fins at top and bottom. Unlike single pass PFA spray chambers, the spray chamber is a true double pass design, which reduces signal fluctuations, improves RSDs and lowers detection limits. The double pass design also removes all sample aerosol droplets greater than 10μM diameter. Removing larger droplets is key to preventing plasma overloading, increasing plasma robustness and reducing oxide levels. While PFA kits have traditionally been used for semicon applications, the Savillex kits can be applied equally to non-semicon high matrix sample types.
The shape and position of the inner tube at the bottom edge has been optimised to ensure a smooth drainage of droplets into the drain fitting positioned below. The design of the drain fitting prevents build-up of liquid, which would lead to signal fluctuation. The end cap is O-ring free and features a 6mm port for a C-Flow nebulizer, and a make up gas port.
An important contributor to the performance of the kit is the connector design. In order to eliminate droplet build up, in this area, careful attention has been paid to the design of the aerosol flow path. The chamber side arm has a wide inner diameter (ID), tapering to the connector. The connector fitting is O-ring free and push fit, and the ID matches precisely the ID of the side arm and of the torch injector holder on the exit side. Because the aerosol flow path is perfectly smooth with no ledges or steps, droplet formation is eliminated and washout is improved.
The semi demountable quartz torch fits onto the injector holder with an O-ring seal, which gives a more secure and easier to remove connection than O-ring free torch mounts. Since no sample liquid comes into the contact with the torch O-ring, there is no risk of increased background contribution. Injectors are available in either sapphire or platinum. In the Agilent versions, an optional gas port for O2 addition on the injector holder is available for the 7500 Series. For the Agilent 7700/8800 Series, the connector has a gas port that allows for O2 addition and for operation in HMI mode.
All parts that come into contact with the sample come precleaned in high purity HNO3/HF, ready for immediate use.
Choose one of the Savillex Inert Kits and add one of the Savillex nebulizers to make a complete inert sample introduction system.
- Inert Kit
- Agilent
