Conny Östman

Professor
Room: A309
Phone: +46 8 674 7196
Conny.Ostman@aces.su.se

Professor Conny Östman

Staff Personal

I took my PhD in analytical chemistry in 1987 and started working as researcher at the Swedish National Institute of Occupational Health in 1988. I became associate professor in Environmental Chemistry in 1994. In 1997 I started working at the Department of Analytical Chemistry as Researcher and Senior Lecturer. In 2015 I was appointed Professor in Analytical Chemistry and started at the new Department of Environmental Science and Analytical Chemistry. I have supervised six and am presently supervising two PhD students.

My research work includes development and application of analytical methods including sampling, extraction, clean-up, and methods for separation and identification of chemical compounds using GC, HPLC, GC-MS, GC-MS/MS, LC-MS and LC-MS/MS techniques.

During the years my research have included areas such as chemical compounds as indoor air pollutants (including flame retardants, plasticizers etc), emission of chemicals from computers and electronic equipment, polychlorinated biphenyls (PCBs) in human blood, polybrominated diphenyl ethers (PBDEs) in various matrices, polycyclic aromatic hydrocarbons/compounds (PAH/PAC) in air, oil, soil, bitumen, curing smoke, stack gases etc, Shpolskii low temperature fluorescence, development of personal sampling equipment, development of hyphenated analytical techniques (coupled LC/GC and LC/GC/MS), etc.

Today my research is focused on chemicals in textiles and porphyrins & phototherapy of oral bacteria.

Staff Research

At the present I am running two research projects:

Chemicals in Textiles
Clothing textiles is a source to human exposure to chemicals that is very little investigated. In this project we have taken an exploratory chemical analysis approach to investigate what chemicals are present in clothing sold the open market. Screenings have demonstrated the presence of hundreds of chemicals in these garments. At present we have developed methods for selective analysis four groups of compounds found to be present in several  of the investigated garments: quinolines, anilines, benzothiazoles, benzotriazoles. We have shown that these compounds are released from the textiles during laundry and that they are released to the household wastewater.

Porphyrines and Phototheraphy of Oral Bacteria
In a co-operation with the Department of Dental Medicine at Karolinska Institutet we are developing analytical methods to study the content of porphyrins in oral bacteria and the use of Phototherapy as a tool for oral health care. The use and effect of toothbrushes with built in LED technology shall be tested for the prophylaxis and treatment of oral disease. The aim is to examine if light with a certain wavelength incorporated in a toothbrush inhibit and/or kill oral bacteria and prevent and/or reduce gingival inflammation. The project includes both basic chemical and microbiological mechanistic studies and clinical research. The project has received a grant of 2.4 million SEK from the Swedish Research Council for the years 2014-2016.

Today my research is focused on chemicals in textiles and porphyrins & phototherapy of oral bacteria.

Staff Teaching

I am teaching chromatography on basic level and I am running the advanced level course Advanced Separation Methods. I am course leader and examiner for the departments Degree Projects in Analytical Chemistry  and co-ordinator for the departments Master Programme in Analytical Chemistry. I am also Director of PhD Studies in Analytical Chemistry.

Staff Specialties

  • The Analytical Chain
  • Development of analytical methods
  • Gas Chromatography
  • Liquid Chromatography
  • Mass Spectrometry (GC/MS & LC/MS)
  • Coupled LC-GC and LC-GC-MS
  • Chemicals in textiles

Analytical Chemistry

Analyzing organic chemicals: Basic research in method development and environmental / bioanalytical applications.