9019

8364

كارشناسي ارشد

شيمي فيزيك

اصفهان: دانشگاه صنعتي اصفهان، دانشكده شيمي

1392

دوازده،61ص.: مصور،جدول،نمودار

ص.ع.به فارسي و انگليسي

محمود تبريزچي

عليرضا طالبيان، حسين فرخ پور

20/3/93

حسن قاضي عسگر، محمدژياني

شيمي

ID8364

62Feasibility Study of Detection and Measurement of Amins in Breath by Ion Mobility Spectrometry Maedeh Abrishamkar Isfahani Maedeh abrishamkar@ch iut ac ir Date of Submission 2014 01 11 Department of Chemistry Isfahan University of Technology Isfahan 84156 83111 Iran Degree M Sc Language Farsi Mahmoud Tabrizchi m tabriz@cc iut ac ir Abstract Halitosis is a condition in which someone s exhaled breath smells bad The bad smelling compounds in breath are categorized into four groups Sulfides Amines Carboxylics and Alcoholics This study utilized ion mobility spectrometry IMS to identify the bad smelling substances in breath and mouth As IMS response to amines is excellent a group of amines including ammonia trimethylamin indole and skatole were examined The ion mobility spectra of the substances were recorded and their detection limits were obtained to be 1 5 16 0 1 6 18 8 ppbv for ammonia trimethylamin indole and skatole respectively The analyses was performed by direct introduction of gaseous sample into the IMS without preconcentration The level of ammonia in breath of healthy people was examined The results revealed that its concentration for various people is different and for individuals it varies in different times After eating the level of ammonia in breath increases This study shows that IMS can easily quickly and successfully measure ammonia in breath Keywords Halitosis Ammonia Trimethylamin Indole Skatole Ion Mobility Spectrometer

محمود تبريزچي

عليرضا طالبيان، حسين فرخ پور

حسن قاضي عسگر، محمدژياني