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ADVERTORIAL


Clearly Better ICP-MS Introducing the Agilent 7700 Series


ICP-MS performance has been steadily improving since the technique was developed over 20 years ago. However, some of the weaknesses that were identified in the very earliest commercial instruments can still cause analytical problems today.


Agilent has been leading the development of ICP-MS since the early days of the technique, and our most recent innovations have resulted in the extraordinary new Agilent 7700 Series (Figure 1). Replacing the 7500 Series, the most widely used ICP-MS ever, the 7700 Series finally delivers the performance that ICP-MS has always promised.


Key technology and performance of the new 7700x includes: • New, fast frequency-matching RF generator, which will tolerate highly volatile organic solvents


• High Matrix Introduction (HMI) capability as standard • Redesigned ion lens that delivers higher sensitivity and lower background


• Nine orders dynamic range detector – from DL to >500 ppm • New Agilent MassHunter software with Excel 2007, for comprehensive data analysis and reporting functions


• 30% smaller than the 7500 Series, and weighing only 115 kg (253 lbs)


Off-axis ion lens HMI


Low flow sample introduction


Peltier cooled spray chamber


Fast, frequency matching 27MHz RF generator


Figure 1. Agilent 7700x ICP-MS in detail


© Agilent Technologies, Inc., 2009 July 14 2009 5990-4302EN


Circle no. 343


•3rd generation Octopole Reaction System (ORS3), providing dramatically improved performance in helium (He) collision mode


These developments allow the 7700x to address the main practical limitations of most modern ICP-MS instruments, which are:


1) Limited tolerance to high matrix samples – around 0.2% total dissolved solids (TDS) is considered the maximum • The 7700x with HMI handles much higher matrix levels (% TDS), which previously required dilution or analysis by ICP-OES


2) Only 8 orders analytical range, from sub-ppt to 10’s ppm •The 7700x has an unparalleled 9 orders dynamic range, from sub-ppt to >500 ppm, in a single acquisition


3) Complex matrices give errors due to polyatomic interferences •ORS3 in He mode provides effective removal of polyatomic interferences, without the complexity and uncertainty associated with reactive cell gases


The 7700x opens a new chapter in the story of ICP-MS, providing more accurate data across a wider range of analyte concentrations and sample matrix types, while simplifying method development and routine operation. At the same time, the 7700x retains the performance and flexibility required for advanced research applications.


For more information on the 7700 Series ICP-MS visit the Agilent Technologies web site at: www.agilent.com/chem/icpms


3rd generation Octopole Reaction System (ORS3)


Fast, simultaneous dual mode detector (9 orders dynamic range)


High frequency hyperbolic quadrupole


High performance vacuum system


High transmission, matrix tolerant interface


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