laboratory
About our laboratory
We are an ISO-accredited laboratory service dedicated to specific antibody and aeroallergen measurement for occupational and environmental issues.
We provide a specialist immunological service for the diagnosis of occupational lung disease, working in close collaboration with clinical colleagues from the Royal Brompton Hospital. We are also the only UK site currently carrying out beryllium lymphocyte proliferation tests. A full list of our services include:
- Measurement of specific IgE and IgG antibodies to allergens
- Extraction of allergens for measurement of specific IgE or IgG
- Bespoke specific IgE assays for novel occupational and environmental allergens
- Precipitation assays for the measurement of specific IgG antibodies
- T cell (lymphocyte) proliferation assays to beryllium
- Allergen extraction from air filters
- Rat n 1 and Mus m 1 aeroallergen measurements
- Research and development of new diagnostic assays
- Specialist advice on diagnostic assays and interpretation of results
- Immunological health surveillance
Laboratory team
- Dr Jennifer Canizales, Laboratory Development Manager | Email
- Samantha Marsh, Laboratory Technician | Email
Send samples to us
- Download the Laboratory Services sample request form and instructions
- Read guidance on containers, boxes and centrifugation when transporting samples to the lab
Further information
We are happy to take enquiries from employers, occupational health services and businesses. Please note charges may be applicable for non-NHS work. For further information please contact Dr Jennifer Canizales.
- Lab newsletter (2025 edition)
- Frequently asked questions
- Current BSI Certificate of Registration (ISO 9001:2015)
- Quality policy

Dr Jennifer Canizales
Laboratory Development Manager

Dr. Jennifer Canizales runs the Occupational and Environmental Medicine Lab Service at the National Heart and Lung Institute (NHLI), where she oversees diagnostic services for occupational respiratory diseases. Her work focuses on developing new immunological assays and collaborating with researchers at Imperial College and other institutions on environmental health research.
Prior to this, Jennifer worked on malaria serosurveillance projects at the London School of Hygiene & Tropical Medicine and contributed to allergy research with the SPIRAL study at Imperial College London. Today, she combines lab management with ongoing research to improve diagnostic techniques in occupational respiratory disease.
See a list of recent publications by Dr Jennifer Canizales
- Phone: +44 (0)207 594 7930
- Email: j.canizales@imperial.ac.uk
Laboratory closure during Easter 2025
Mon, 14 Apr 2025

Our laboratory will be closed between Thursday 17th April 2025 - Tuesday 22nd April 2025 for Easter.
Please ensure that any samples sent to the lab arrive by Wednesday 16th April 2025, or after Wednesday 23rd April 2025.
You can read more about how to send us a sample in the laboratory section.
Samantha Marsh
Laboratory Technician

Samantha Marsh is the Laboratory Technician for the Occupational and Environmental Medicine Lab Service at the National Heart and Lung Institute (NHLI), where she specialises in performing diagnostic testing. She joined the service in 2024.
Prior to her role at NHLI, Samantha worked as an analyst at a Toxicology company, conducting analytical assays for police and coroners' services.
