The Team

Christabel Brand
Managing Director

Christabel and Nigel established Portable Spectral Services back in 2011 with the aim of furthering the use of handheld XRF within the mining industry. From small beginnings, Chris has seen the company grow from a simple hire company to one that encompasses all kinds of spectral technology.

Chris works in many capacities within the company. In addition to her role as managing director, she works as the Bruker application scientist creating matrix matched calibration to guarantee clients are achieving the best results from their XRF’s. As a top-notch scientist and problem solver, Chris can often be seen teaching and supporting staff members with technical applications and trouble shooting.

The large variety of applications that go with the spectral technology is what keeps the job interesting, with each day being different. She says, “one day it is a lithium calibration the next it is seaweed.” She loves working with people from such a variety of industries that utilise this technology.

Chris has worked in laboratories for the last twenty-five years, including managing the assay laboratory in the gold refinery in Kalgoorlie. She has also had extensive training from Bruker in creating all kinds of custom calibrations and everything to do with handheld XRF. 

Chris holds a Bachelor of Science in Medical Science and a Master of Science in Infectious Diseases.

Nigel Brand
Consulting Geochemist

Nigel is a highly trained and motivated  geochemist within the mineral industry and has been for over twenty‐five years, initially with WMC Resources (11 years), Anglo American (5 years) and more recently with Geochemical Services for more than 10 years.

Nigel brings extensive international experience in diversified environments, strong global expertise in geochemistry and informed independent technical advice.

With the ability to manage all aspects of exploration geochemistry, and extensive experience in QAQC in exploration and mining, Nigel has the ability to advise, mediate and negotiate.

Specialising in;

Exploration GeoChemistry

Portable XRF Applications

Lithogeochemistry Vectoring

Geometalurgical Processing

Ferrous and non-ferrous mineral exploration

Samplong and Quality control

John L. Gravel
Chief Technical Officer - Canada
  • +1 604 992 2648

John L. Gravel, M.Sc.A, P.Geo is a professional geoscientist and business management consultant currently mentoring companies on business structure and ownership.

Before retiring from Bureau Veritas, he was the Technical VP for the minerals business unit where he oversaw technology and geochemistry related activities, research and development. Prior to the purchase by Bureau Veritas, he served as Quality Manager, President, CEO and then Chairman of Acme Analytical Laboratories Ltd over an 18-year period.

Before AcmeLabs, he worked as an exploration and research geochemist for government and industry specializing in the evaluation, statistical analysis and interpretation of datasets spanning the scale from deposit size studies to regional geochemical programs covering hundreds of thousands of square kilometres.

He received his Master’s degree in Mineral Exploration (MINEX) from McGill University in 1985 and his Bachelor of Science degree (Geology) in 1979.

Lauren Steen
Business Manager

Lauren brings with her over ten years of business management experience, specifically related to the mining, environmental and oil and gas sectors. In addition to this she brings with her a wealth of knowledge in radiation safety and legislation, having previously worked with Radiation Health and a radiation consultancy group. 

Lauren provides the business with a unique outlook and prides herself on ensuring all our clients are catered with a unique and personalised service. As a manager she encourages the staff to think above the line and achieve the most in their roles. 

Originally from Ireland, Lauren moved to Australia in pursuit of better weather so she can enjoy the outdoor activities that she loves.

Frazer Fallens
Products & Services Manager

Frazer joined Portable Spectral Services in 2018 with sixteen years of mining & exploration industry experience. Frazer has extensive knowledge of geochemistry and laboratory technologies from working within the commercial laboratory industry both in Australia and Africa.

Frazer has held both operational and business development management roles, leading teams to meet customers’ expectations. With strong networking and negotiation skills, Frazer brings a sound understanding of services required within the exploration and mining supply chain.

As Products & Services Manager, Frazer ensures our clients’ needs are met and that that they have the best tools and advice for their project work programs. Frazer along with the team are always looking to develop our product offering and improve services with new technologies, applications and R&D.

Steve Maritz
Business Development Executive

Steve joined Portable Spectral Services in 2019 and has extensive technical experience working in Mechanical Services industry in a technical role for 20 years. Including qualifying in and dealing with all related electrical and controls. In this time he gained extensive insights and experience with the exposure to multi sectors including General Commercial Enterprise, Food Production, General Industrial, Heavy Industrial, Hospitals, Laboratories Multi-Sector, Materials Processing, Vehicle Manufacturing, Oil Refineries, Pulp and Paper Mills. Infra-structure facilities including Airports, Power Stations, Water Treatment Plant, Ports and Marine.

Following a complete career switch Steve entered and qualified as Post Graduate and began a 10 year career as a financial professional, leading to immigration to Perth, Australia in a management role.

In 2008, Steve resumed his role as Business Development Manager for Global Manufacturers of HVAC Equipment supplying the Perth construction sector and mechanical contractors with equipment.

Steve enjoys utilising the extensive people skills gained through the course of his technical and service orientated career.

Steve hails from South Africa, where he grew up in a family owned marine commercial fishery involved in direct operations at times, from an early age up to 2002.

Acacia Cherry
Administration / Accounts

Acacia joined Portable Spectral Services in 2017 and brings with her ten years’ experience in accounts payable/receivable and administration for small business. Acacia is the first point of contact for clients regarding rentals and sales at front of house.

In addition to her work at PSS, Acacia also runs our sister company, Healthy Homes & Gardens for our domestic sector.

Always keen to build on her knowledge, Acacia is an experienced and valued member of the PSS team.

Naomi Potter
Spectral Geologist

Naomi joined Portable Spectral Services in 2018 after she completed her PhD at the University of Tasmania. Naomi provides technical assistance to exploration and mining companies in identifying the most economic and efficient methods for their geochemical requirements, providing QA/QC assistance and completing geochemical interpretations on a wide range of commodities and deposit types. 

She has experience in a variety of analytical techniques including X-ray fluorescence technology, SWIR-NIR Spectroscopy, Laser Ablation-ICPMS and Scanning Electron Microscopy and teaches the radiation safety and instrument training courses to industry participants across Australia.

Sophie Perring
Spectral Analyst

Sophie joined Portable Spectral Services in 2018 as a graduate chemist and was quickly noticed for her outstanding research skills and her ability to pick up new technology. 

Now working as our spectral analyst, Sophie provides technical assistance for a wide range of portable spectroscopic instruments.  She specialises in the application of Raman and FTIR spectroscopy in the resource industry and the benefits of combined analytical methods. 

Sophie holds an honours degree in Chemistry from the University of Western Australia.

Danielle Stephen
Instrument Manager

Danielle first joined Portable Spectral Services in 2017, bringing with her seven years’ experience in radiation safety, laboratory services, analysis and instrument repairs. Currently working as an Equipment & Service Manager, Danielle looks after instrumentation & equipment rentals, materials sampling and the service & repairs to the company and client’s equipment.

Danielle has a Certificate IV in Laboratory Techniques Specialising in Radiation Measurement and various Radiation Safety and User Licences. 

She enjoys the variation of challenges working with the different instruments. Her work is varied with plenty of problem solving, for which Danielle will not give up until she has fixed a faulty instrument or solved the issue at hand on the day.

Emma Brand
Administration Assistant

As of January 2019, Emma works mainly as Acacia’s second hand, assisting on all thing’s administration. She joined in 2017 and worked originally as a technical assistant for instrument preparation and sampling.

Having both administration and technical skills, Emma often assists other staff members on big projects. She also runs our sister company, Healthy Homes & Gardens for the domestic sector.

Emma holds a Bachelor of Arts in the History of Art and Communication and Media Studies from the University of Western Australia.


Portable Spectral Services (formerly Portable XRF Services) was established in 2010 in Perth, Australia. The company began with the mission to provide an independent voice to the ever-increasing portable XRF market. We have since grown substantially to become a unique provider for all kinds of spectral technology, priding ourselves on delivering a standalone voice for a wide range of services, sectors and products.  

At Portable Spectral Services, we are committed to providing a quality service to industry specific needs. By imparting expert knowledge and reaching further with innovative applications, our staff enable clients to push scientific boundaries and surpass project goals.

Our company is founded on a strong commitment to research and development in order to consistently meet dynamic industry demands. Our comprehensive array of services allows us to work across a large range of industries, with a focus on client needs and project goals.

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