Improved Detection Capabilities by Fast Data Acquisition in ICP-MS
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Improved Detection Capabilities by  Fast Data Acquisition in ICP-MS - 1

Improved Detection Capabilities by Fast Data Acquisition in ICP-MS René Chemnitzer, Meike Hamester Bruker Daltonik GmbH, Bremen Germany

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Improved Detection Capabilities by  Fast Data Acquisition in ICP-MS - 2

Why 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

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Improved Detection Capabilities by  Fast Data Acquisition in ICP-MS - 3

Let‘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

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Improved Detection Capabilities by  Fast Data Acquisition in ICP-MS - 4

Laser ablation on zircon crystals Photon-Machines Inc. 193nm excimer laser 4ns pulse duration, spot size down to 2µm Bruker aurora Elite ICP-MS

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Improved Detection Capabilities by  Fast Data Acquisition in ICP-MS - 5

position 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.

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Improved Detection Capabilities by  Fast Data Acquisition in ICP-MS - 6

Isotope ratio results for Zircon GJ1 Bruker Corporation

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Improved Detection Capabilities by  Fast Data Acquisition in ICP-MS - 7

Samples: R10b and R13, Age: 1090Ma and 505±6Ma A.K. Schmitt, Th. Zack, Chemical Geology 332-333, 2012, 65-73

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Improved Detection Capabilities by  Fast Data Acquisition in ICP-MS - 8

Samples: 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

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Improved Detection Capabilities by  Fast Data Acquisition in ICP-MS - 9

It‘s all about timing… analysis of nanoparticles • The peak width of the ion plume entering the MS is about 300 μs.

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Improved Detection Capabilities by  Fast Data Acquisition in ICP-MS - 10

Acquisition of single particles Bruker Corporation

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Improved Detection Capabilities by  Fast Data Acquisition in ICP-MS - 11

Detection limit for Nanoparticles • 60nm Gold nanoparticle • Dwell time: 100µs • Sensitivity – 300 counts

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Improved Detection Capabilities by  Fast Data Acquisition in ICP-MS - 12

Enhanced performance through membrane desolvation Have you ever seen >10Mio cps/ppb…at 0.2% oxides

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Improved Detection Capabilities by  Fast Data Acquisition in ICP-MS - 13

Cetac AridusII + Bruker aurora Elite lime Scan Setup... Bruker Corporation

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Improved Detection Capabilities by  Fast Data Acquisition in ICP-MS - 14

Summary 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 •...

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Improved Detection Capabilities by  Fast Data Acquisition in ICP-MS - 15

Thank you for your attention !

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