Nasar Ahmad Shayan, Ali Rahimi, Saverio Stranges, Amardeep Thind
Factors affecting quality of life in hepatitis B patients in Herat, Afghanistan: A case-control study
Journal of viral hepatitis
importance atmospheric aerosols regulating earths climate potential detrimental impact air quality human health stimulated need instrumentation provide realtime analysis size resolved aerosol mass chemical composition describe aerosol mass spectrometer ams developed response aerosol sampling needs present results demonstrate quantitative mea surement capability laboratorygenerated pure component nh4 no3 aerosol instrument combines standard vacuum mass spectrometric technologies recently developed aerosol sampling techniques unique aerodynamic aerosol inlet developed university minnesota focuses particles narrow beam efficiently transports vacuum aerodynamic particle size determined via particle timeofflight tof measurement timeresolved particle mass detection performed mass spectrometrically following particle flash vaporization resistively heated surface calibration data presented aerodynamic particle velocity particle collection efficiency measurements capability measure aerosol size mass distributions compared simultaneous measurements using differential mobility analyzer dma condensation particle counter cpc quantitative size classification demonstrated pure component nh4 no3 aerosols mass concentrations 025mu g 3 results fluid dynamics calculations illustrating performance aerodynamic lens also presented compared measured performance utility ams laboratory field portable instrument discussed