Group: Bruker
Catalog excerpts
Improved Detection Capabilities by Fast Data Acquisition in ICP-MS René Chemnitzer, Meike Hamester Bruker Daltonik GmbH, Bremen Germany
Open the catalog to page 1Why do we need improvements in sensitivity and scan speed Scan Speed Sensitivity Laser ablation • Small samples – inclusions Isotope ratio / isotopic abundance Fast scan speed, signal is limited in time High sensitivity - isotopic Elemental mapping - resolution abundance varies Better detection limits Better peak characterization Multi-element acquisition Lower injection volumes Single particles • Smaller particles
Open the catalog to page 2Let‘s talk about spot diameter Laser ablation on crystalline samples • Limited sample size means – interest in smallest possible spot sizes If the diameter is in-/decreased by a factor of two the amount of sample changes by a factor of 4 To change from ~50µm to 20µm means more than 4 times less material
Open the catalog to page 3Laser ablation on zircon crystals Photon-Machines Inc. 193nm excimer laser 4ns pulse duration, spot size down to 2µm Bruker aurora Elite ICP-MS
Open the catalog to page 4position in the ablation chamber zoomed CCD camera view of the ablation site Laser settings Screen image of photon-machines Chromium software showing zircon crystals prior to ablation.
Open the catalog to page 5Isotope ratio results for Zircon GJ1 Bruker Corporation
Open the catalog to page 6Samples: R10b and R13, Age: 1090Ma and 505±6Ma A.K. Schmitt, Th. Zack, Chemical Geology 332-333, 2012, 65-73
Open the catalog to page 7Samples: R10b and R13 Age: 1090Ma and 505±6Ma A.K. Schmitt, Th. Zack, Chemical geology 332-333, 2012, 65-73 Improve signal stability Better precision
Open the catalog to page 8It‘s all about timing… analysis of nanoparticles • The peak width of the ion plume entering the MS is about 300 μs.
Open the catalog to page 9Acquisition of single particles Bruker Corporation
Open the catalog to page 10Detection limit for Nanoparticles • 60nm Gold nanoparticle • Dwell time: 100µs • Sensitivity – 300 counts
Open the catalog to page 11Enhanced performance through membrane desolvation Have you ever seen >10Mio cps/ppb…at 0.2% oxides
Open the catalog to page 12Cetac AridusII + Bruker aurora Elite lime Scan Setup... Bruker Corporation
Open the catalog to page 13Summary All-digital Detection System Unmatched Sensitivity • High efficiency plasma and ion optic • Excellent detection limits • Attractive to laser ablation and other application markets • Only detector to offer 109 working range in pulsecounting (digital) mode. • No cross-calibration of digital-analog modes required Simplified Interference Management • Innovative Collision-Reaction Interface (CRI) • Hollow ion mirror design requires no cleaning • Removes interferences at plasma interface, not the ion beam • No need for additional cleaning / replace of interference management technology •...
Open the catalog to page 14Thank you for your attention !
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