Inductively Coupled Plasma Mass Spectrometry with Microsecond Time Resolution: New Possibilities for Nanomaterials Characterization

Apr
12
2018

Analytica Conference > GDCh / Room 5 > New Developments in Analytical Spectroscopy - The Power of Nanoanalysis

12. Apr 2018
15:50-16:15 h  |  ICM - Internationales Congress Center München Room 5

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Subjects: 

Analytic

|

Applications

Speaker: 

Prof. Dr. Carsten Engelhard 

(University of Siegen)

Type:
Lecture
Speech: English

In this presentation, recent developments in plasma spectrochemistry and inductively
coupled plasma quadrupole mass spectrometry (ICP-Q-MS) instrumentation for
nanomaterials characterization in complex mixtures will be reviewed. In the first part of
the presentation, the current state-of-the-art in single-particle (sp) ICP-MS
instrumentation for the detection and characterization of single nanoparticles (NP) will
be discussed. A custom-built high-speed data acquisition (DAQ) unit [1] specifically
tailored to the needs of spICP-MS will be discussed. The DAQ was built in-house and
enables continuous acquisition of signals from discrete ion clouds in the ICP with a time
resolution of five microseconds and 100% duty cycle. Fully time-resolved temporal
profiles of individual single droplet or particle events can be recorded. For example,
time-resolved 197Au+ ion cloud profiles of single 10-nm sized AuNPs were obtained for
the first time using a quadrupole MS instrument. Tailored data processing was used to
flag particle events in continuous ion traces and to perform signal-to-background
correction. Selected examples from our own work will be discussed including remaining
challenges and potential advances in ICP-MS technology.

In the second part, the added benefit of fractionation/separation methods in
nanomaterials analysis with ICP-MS will be presented. For example, nanoparticle
separation, size characterization, and quantification of gold and silver nanoparticles
using capillary electrophoresis (CE) and ICP-MS in single particle mode with
microsecond time resolution and particle pre-concentration will be discussed [2-4]. Key
features of CE-spICP-MS including resolution and detection limits will be reported.

Literature:

[1] I. Strenge, C. Engelhard, J. Anal. At. Spectrom., 2016, 31(1), 135-144.
[2] B. Franze, I. Strenge, C. Engelhard, J. Anal. At. Spectrom., 2017, 32, 1481-1489.
[3] D. Mozhayeva, I. Strenge, C. Engelhard, Anal. Chem. 2017, 89, 7152-7159.
[4] D. Mozhayeva, C. Engelhard, Anal. Chem., 2017, 89, 9767-9774.

Speaker
Prof. Dr. Carsten Engelhard, University of Siegen Show Profile

Location
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ICM -InternationalesCongressCenterMünchen
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EntranceEast
EntranceNorth-West
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Outdoor areas
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ConferenceCenter Nord
ICM
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Apr
12
2018

Analytica Conference > GDCh / Room 5 > New Developments in Analytical Spectroscopy - The Power of Nanoanalysis

Elemental labelling as a general platform for ICP-MS analysis of clinical biomarkers

12. Apr 2018
15:00-15:25 h  |  ICM - Internationales Congress Center München Room 5
Speaker: Prof. Dr. Maria Montes Bayon (University of Oviedo)

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Apr
12
2018

Analytica Conference > GDCh / Room 5 > New Developments in Analytical Spectroscopy - The Power of Nanoanalysis

Recent developments in single particle and single cell analysis using triple quadrupole ICP-MS

12. Apr 2018
16:40-17:00 h  |  ICM - Internationales Congress Center München Room 5
Speaker: Prof. Dr. Jörg Bettmer (University of Oviedo)

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Apr
12
2018

Analytica Conference > GDCh / Room 5 > New Developments in Analytical Spectroscopy - The Power of Nanoanalysis

HR-CS-GFMAS – a powerful tool for fluoride analysis in river water samples

12. Apr 2018
15:25-15:50 h  |  ICM - Internationales Congress Center München Room 5
Speaker: Dr. Björn Meermann (Federal Institute of Hydrology)

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Apr
12
2018

Analytica Conference > GDCh / Room 5 > New Developments in Analytical Spectroscopy - The Power of Nanoanalysis

Focus on Nanoparticles: From Pilot Whales to Petrol

12. Apr 2018
16:15-16:40 h  |  ICM - Internationales Congress Center München Room 5
Speaker: Dr. Eva Krupp (University of Aberdeen)

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