# Inductively Coupled Plasma Mass Spectrometer for High Sensitivity Elemental Analysis

> **NIH NIH S10** · OREGON HEALTH & SCIENCE UNIVERSITY · 2021 · $335,585

## Abstract

Project Summary/Abstract
The long term objective of this proposal is to help researchers with NIH or other federally funded projects to
better understand the role of trace elements in biology or medicine. The Elemental Analysis Core (EAC) at the
Oregon Health & Science University (OHSU) analyses biological specimen for their elemental content using
Inductively Coupled Plasma Mass Spectrometry (ICPMS). As a University Shared Resource at OHSU, the
EAC primarily serves users from OHSU and the Portland Area, however, because of our unique expertise in
trace elemental analysis we also collaborate with many investigators across the US and Canada. Since
inception of the EAC in 2011 we have analyzed ~14,000 samples and have steadily increased our annual
sample load. Our current instrumentation, a single quadrupole inductively coupled plasma mass spectrometer,
was funded by an S10 grant in 2009 and no longer meets the needs and asks for a majority of our user base.
We are therefore requesting funds to replace this instrument with an Agilent 8900 triple quadrupole
inductively coupled plasma mass spectrometer with single particle option. This new, state-of-the-art
instrument, will greatly improve our current services and add an entirely new technique, elemental analysis of
signle particles, to our portfolio. It overcomes limitations of the single quad instrument such as analyzing
samples for their sulfur content or titanium concentration and improvements in detector technology offer a 10 –
100 fold increase in sensitivity. The vastly increased detector speed in combination with enhanced sensitivity
allows for measuring elemental concentration for one particle at a time using a specialized sample introduction
system. This will enable used to determine concentrations of trace elements in single cells or nanoparticles, for
example. We will also develop protocols to detect contents in subcellular organelles such as mitochondria. Dr.
Ralle, the Director of the EAC, has over 25 years of experience in the bioanalytical aspects of trace elements
in biology; she is an internationally recognized expert for elemental analysis and has successfully managed the
EAC. It is because of her expertise and reputation clients from across the US send samples to the EAC for
analyses to OHSU. There are currently no comparable instruments with this setup anywhere in the Pacific
Northwest, Alaska, or Northern California. This new instrument will create a powerful elemental analysis
resource for biomedical researchers across the US.

## Key facts

- **NIH application ID:** 10175982
- **Project number:** 1S10OD028492-01A1
- **Recipient organization:** OREGON HEALTH & SCIENCE UNIVERSITY
- **Principal Investigator:** Martina Ralle
- **Activity code:** S10 (R01, R21, SBIR, etc.)
- **Funding institute:** NIH
- **Fiscal year:** 2021
- **Award amount:** $335,585
- **Award type:** 1
- **Project period:** 2021-06-01 → 2022-05-31

## Primary source

NIH RePORTER: https://reporter.nih.gov/project-details/10175982

## Citation

> US National Institutes of Health, RePORTER application 10175982, Inductively Coupled Plasma Mass Spectrometer for High Sensitivity Elemental Analysis (1S10OD028492-01A1). Retrieved via AI Analytics 2026-05-23 from https://api.ai-analytics.org/grant/nih/10175982. Licensed CC0.

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