2021

Homann, J.; de Wet, C.B.; Oster, J.L.; Hoffmann, T.; Breitenbach, SFM
Investigation of levoglucosan as proxy for biomass burning events and its relationship with established proxies in a speleothem from White Moon Cave, CA.
AGU Fall Meeting 2021

Beschnitt, A.; Schwikowski, M.; Hoffmann, T.
Towards comprehensive non-target screening using heart-cut two-dimensional liquid chromatography for the analysis of organic atmospheric tracers in ice cores
Journal of Chromatography A, 462706
https://doi.org/10.1016/j.chroma.2021.462706

Zhang, M.; Su, H.; Li, G.; Kuhn, U.; Li, S.; Klimach, T.; Hoffmann, T.; Fu, P.; Pöschl, U.; Cheng, Y.
High-Resolution Fluorescence Spectra of Airborne Biogenic Secondary Organic Aerosols: Comparisons to Primary Biological Aerosol Particles and Implications for Single-Particle Measurements
Environ. Sci. Technol. 2021, 55, 24, 16747–16756
https://doi.org/10.1021/acs.est.1c02536

Gutmann, A.; Bobrowski, N.; Liotta, M.; Hoffmann; T.
Bromine speciation in volcanic plumes: new in situ derivatization LC-MS method for the determination of gaseous hydrogen bromide by gas diffusion denuder sampling
Atmos. Meas. Tech., 2021, 14, 6395–6406
https://doi.org/10.5194/amt-14-6395-2021

Yuan, W.; Huang, R.J.; Yang, L.; Ni, H.; Wang, T.; Cao, W.; Duan, J.; Guo, J.; Huang; H.; Hoffmann, T.
Concentrations, optical properties and sources of humic-like substances (HULIS) in fine particulate matter in Xi'an, Northwest China
Science of The Total Environment 2021, 789, 147902
https://doi.org/10.1016/j.scitotenv.2021.147902

Zhang, Y.; Wang, K.; Tong, H.; Huang, R.J.; Hoffmann, T.
The maximum carbonyl ratio (MCR) as a new index for the structural classification of secondary organic aerosol components
Rapid Communications in Mass Spectrometry, 2021, 35 (14), e9113
https://doi.org/10.1002/rcm.9113

Tong, H.; Liu, F.; Filippi, A.; Wilson, J.; Arangio, A.M.; Zhang, Y.; Yue, S.; Lelieveld, S.; Shen, F.; Keskinen, H.M. K ; Li, J.; Chen, H.; Zhang, T.; Hoffmann, T.; Fu, P.; Brune, W. H; Petäjä, T.; Kulmala, M.; Yao, M.; Berkemeier, T.; Shiraiwa, M.; Pöschl, U.
Aqueous-phase reactive species formed by fine particulate matter from remote forests and polluted urban air
Atmos. Chem. Phys., 202121, 10439–10455
https://doi.org/10.5194/acp-21-10439-2021

Wang, K.; Huang, R.J.; Brüggemann, M.; Zhang, Y.; Yang, L.; Ni, H.; Guo, J.; Wang, M. Han, J.; Bilde, M.; Glasius, M.; Hoffmann, T.
Urban organic aerosol composition in eastern China differs from north to south: molecular insight from a liquid chromatography–mass spectrometry (Orbitrap) study
Atmos. Chem. Phys., 2021, 21, 9089–9104
https://doi.org/10.5194/acp-21-9089-2021

Galle, B.; Arellano, S.; Bobrowski, N.; Conde, V.; Fischer, T.P.; Gerdes, G.; Gutmann, A.; Hoffmann, T.; Itikarai, I.; Krejci, T.; Liu, E.J.; Mulina, K. Nowicki, S.; Richardson, T.; Rüdiger, J.; Wood, K.; Xu, J.
A multi-purpose, multi-rotor drone system for long-range and high-altitude volcanic gas plume measurements
Atmos. Meas. Tech., 2021, 14, 4255–4277
https://doi.org/10.5194/amt-14-4255-2021

Riva, M.; Sun, J.; McNeill, V.F.; Ragon, C.; Perrier, S.; Rudich, Y.; Nizkorodov, S.A.; Chen, J.; Caupin, F.; Hoffmann, T.; George, Ch.
High Pressure Inside Nanometer-Sized Particles Influences the Rate and Products of Chemical Reactions
Environ. Sci. Technol., 2021, 55, 12, 7786–7793
https://doi.org/10.1021/acs.est.0c07386

Duan, J.; Huang, R.J.; Chang, Y.; Zhong, H.; Gu, Y.; Lin, C., Hoffmann, T.; O’Dowd, C.
Measurement report of the change of PM2.5 composition during the COVID-19 lockdown in urban Xi’an: enhanced secondary formation and oxidation
Science of The Total Environment, 2021, 148126
https://doi.org/10.1016/j.scitotenv.2021.148126

Heidke, I.; Hartland, A. ; Scholz, D.; Pearson, A.; Hellstrom, J.; Breitenbach, S.F.M.; Hoffmann, T.
Lignin oxidation products in soil, dripwater and speleothems from four different sites in New Zealand
Biogeosciences, 2021, 18 (7), 2289-2300
https://doi.org/10.5194/bg-18-2289-2021

Gutiérrez, X.; Bobrowski, N.; Hoffmann, T.; Gutiérrez, E.; Dinger, F.; Montalvo, F.; Escobar, D.
Variation of SO2 and CO2 in the volcanic gas plumes of Santa Ana and San Miguel volcanoes: an overview by real-time measurements
EGU General Assembly Conference Abstracts, 2021, EGU21-4606

Lei, T.; Ma, N.; Hong, J.; Tuch, T.; Wang, X.; Wang, Z.; Pöhlker, M.; Ge, M.; Wang, W.; Mikhailov, E.; Hoffmann, T.; Pöschl, U.; Su, H.; Wiedensohler, A.; Cheng, Y.
Nano-HTDMA for investigating hygroscopic properties of sub-10 nm aerosol nanoparticles
EGU General Assembly Conference Abstracts, 2021, EGU21-6310

Yuan, W.; Huang, R.J.; Yang, L.; Wang, T.; Duan, J.; Guo, J.; Ni, H.; Chen, Y; Chen, Q.; Li, Y.; Dusek, U.; O'Dowd, C.; Hoffmann, T.
Measurement report: PM2.5-bound nitrated aromatic compounds in Xi'an, Northwest China – seasonal variations and contributions to optical properties of brown carbon
Atmos. Chem. Phys., 21, 3685–3697, 2021
https://doi.org/10.5194/acp-21-3685-2021

Leppla, D.; Zannoni, N.; Kremper, L,; Williams, J.; Pöhlker, C.; Sá, M.; Solci, M.C.; Hoffmann, T.
Varying chiral ratio of Pinic acid enantiomers above the Amazon rainforest
Atmos. Chem. Phys. Discussions, 1-19
https://doi.org/10.5194/acp-2021-150

Rüdiger, R.; Gutmann, A.; Bobrowski, N.; Liotta, M.; De Moor, J.M.; Sander, R.; Dinger, F.; Tirpitz, J.-L.; Ibarra, M.; Saballos, A.; Martínez, M.; Mendoza, E.; Ferrufino, A.; Stix, J.; Valdés, J.; Castro, J. M.; Hoffmann, T.
Halogen activation in the plume of Masaya volcano: field observations and box model investigations
Atmos. Chem. Phys., 21, 3371–3393, 2021
https://doi.org/10.5194/acp-21-3371-2021

Homann, J.; Hoffmann, T.; Scholz, D.; Breitenbach, S.
Levoglucosan in speleothems: An evaluation of various sample preparation methods
EGU21-1065
https://doi.org/10.5194/egusphere-egu21-1065

Gutmann, A.; Bobrowski, N.; Liotta, M.; Hoffmann, T.
Bromine speciation in volcanic plumes: new in situ derivatization LC-MS method for the determination of gaseous hydrogen bromide by gas diffusion denuder sampling
Atmos. Meas. Tech., 14, 6395–6406, 2021
https://doi.org/10.5194/amt-14-6395-2021

Hoffmann, T.; Hahn, A.; Verweij, J.M.; Leboulle, G.; Landt, O; Strube, C.; Kann, S.; Dekker, D.; May, J., Frickmann, H.
Differing Effects of Standard and Harsh Nucleic Acid Extraction Procedures on Diagnostic Helminth Real-Time PCRs Applied to Human Stool Samples
Pathogens 2021, 10(2), 188
https://doi.org/10.3390/pathogens10020188