Specifications include, but are not limited to:
The standard sample introduction system supplied must include a spray chamber and nebulizer. If the standard spray chamber is cooled the cooling mechanism (e.g., water-cooled or peltier-cooled) must be included. The instrument must also accommodate attachment of after-market spray chambers such as a Glass Expansion cyclonic twisty spray chamber and low flow (50 to 100 l/min) self-aspirating concentric flow nebulizers. Any peristaltic pumps needed to drain the spray chamber or pump the nebulizer must be included and must be capable of being operated by the ICP-MS software; ICP-RF Generator.
The ICP RF generator must be capable of operating at up to 1600 watts power at ~27 MHz, and be completely computer controlled (including ignition, operation, and shutdown); it should be of solid-state design. ICP generator must be temperature interlocked. The instrument must be designed to nominally operate between 1200 and 1400 watts, but must also be capable of operation in “cool- plasma” mode (800 to 600 W). It is highly desirable that the plasma be able to operate during an analysis under lower flow Ar conditions (10 l/min or less Ar consumption). Vendor must state if it is possible to make analyses using low flow Ar conditions.