The Agilent 7700x/7800 ICP-MS combines the simplicity of a single collision
cell mode (helium mode) for polyatomic interference removal with the
superior matrix tolerance of its unique High Matrix Introduction (HMI)
system. Octopole Reaction System (ORS) cell technology provides higher
sensitivity and more effective interference removal than ever before in
complex, high matrix samples, eliminating the need for reactive cell gases in
routine analysis. Helium mode on the ORS is so effective that interference
correction equations can also be eliminated. These two factors redefine
ease of use in ICP-MS, removing two of the most common causes of errors
in multi-element analysis of complex samples.
A challenging 15-hour sequence of high matrix soils, waters, seawaters and
sediments was analyzed according to US Environmental Protection Agency
(EPA) Method 6020A. The Agilent 7700x ICP-MS delivered excellent recovery
of certified values for six standard reference materials, with no quality
control failures throughout the entire sequence.