Developments of the laboratory

Laboratory staff developed the following analytical methods for determination of:

• Concentrations of benzene, toluene, ethylbenzene and o-xylene in air by SPME-GC-MS
• Time-weighted average concentrations of benzene, toluene, ethylbenzene and o-xylene in exhaust gases of cars by SPME-GC-MS
• Concentration of phenol in soil by SPME-GC-MS
• Concentration of benzene, toluene, ethylbenzene and o-xylene in soil by SPME-GC-MS
• Concentration of 1-methyl-1H-1,2,4-triazole in soil by SPME-GC-MS
• Concentration of 1-methyl-1H-1,2,4-triazole in soil GC-MS after solvent extraction
• Concentration of N-nitrosodimethylamine in water by SPME-GC-MS
• Concentration of N-nitrosodimethylamine in soil by SPME-GC-MS
• Concentration of formaldehyde dimethylhydrazone in water by SPME-GC-MS and SPME-GC-NPD
• Concentrations of 1-methyl-1H-1,2,4-triazole, N-nitrosodimethylamine, 1-formyl-2,2-dimethylhydrazine and formaldehyde dimethylhydrazone in water by HPLC with diode array detection
• Concentration of 1,1-dimethylhydrazine in soil water and plants by HPLC after derivatization by p-nitrobenzaldehyde
• Concentration of 1,1-dimethylhydrazine in soil water and plants by GC-MS after derivatization by p-nitrobenzaldehyde
• Concentration of 1,1-dimethylhydrazine in milk by ion chromatography with amperometric detection
• Concentrations of sorbate and benzoate ions in milk and juices by HPLC with diode array detection
• Total petroleum hydrocarbons in soil by SPME-GC-MS

Abbreviations: SPME - solid-phase microextraction; GC - gas chromatography; MS - mass spectrometry; HPLC - high-performance liquid chromatography; NPD - nitrogen phosphorus detection.

Developed screening methods:

• Transformation products of 1,1-dimethylhtydrazine in soil and water by SPME-GC-MS
• Petroleum hydrocarbons in water by SPME-GC-MS
• Volatile organic compounds in air and exhaust gases by SPME-GC-MS
• Volatile organic compounds in foodstuff by SPME-GC-MS
• Volatile organic compounds in alcoholic beverages (brandy, vodka, whisky, etc. by SPME-GC-MS

Developed software:

• Simultaneous determination of component and fractional composition of oil and petroleum products based on results of GC-MS analysis
• Statistical data processing by principal component analysis, hierarchical clustering and linear discriminant analysis for classification of samples based on their chemical composition
• Checking and export of references to Crossref database (for scientific journals)