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| 1 | Identification and Quantification of Aerosol Polar Oxygenated Compounds Bearing Carboxylic or Hydroxyl Groups.1.Method Development显示文摘In this study,a new analytical technique was developed for the identification and quantification of multifunctional compounds containing simultaneously at least one hydroxyl or one carboxylic group,or both.This technique is based on derivatizing first the carboxylic group(s) of the multifunctional compound using an alcohol (e.g.,methanol,1-butanol) in the presence of a relatively strong Lewisacid (BF3) as a catalyst.This esterification reaction quickly and quantitatively converts carboxylic acids to their ester forms.The second step is based on silylation of the ester compounds using bis(trimethylsilyl) trifluoroacetamide (BSTFA) as the derivatizing agent.For compounds bearing ketone groups in addition to carboxylic and hydroxyl groups,a third step was used based on PFBHA derivatizationof the carbonyls.Different parameters including temperature,reaction time,and effect due to artifacts were optimized.A GC/MS in EI and in methane-CI mode was used for the analysis of these compounds.The new approach was tested on a number of multifunctional compounds.The interpretation of their EI (70 eV) and CI mass spectra shows that critical information is gained leading to unambiguous identification of unknown compounds.For example,when derivatized only with BF3-methanol,their mass spectra comprise primary ions at m/z M ·+ +1,M ·+ +29,and M ·+ - 31 for compounds bearing only carboxylic groups and M ·+ +1,M ·+ +29,M ·+ -31,and M ·+ -17 for those bearing hydroxyl andcarboxylic groups.However,when a second derivatization (BSTFA) was used,compounds bearing hydroxyl and carboxylic groups simultaneously show,in addition to the ions observed before,ions at m/z M ·+ +73,M ·+ -15,M ·+ -59,M ·+ -75,M ·+ -89,and 73.To the best of our knowledge,this technique describes systematically for the first time a method for identifying multifunctional oxygenated compounds containing simultaneously one or more hydroxyl and carboxylic acid groups. | Jaoui M. Kleindienst T.E. Lewandowski M. Edney E.O. | 2004 | 天然产物研究与开发2004，16，5： | 5 |
| 2 | Increased Quality of Life Among Hepatocellular Carcinoma Patients Treated with Radioembolization, Compared with Chemoembolization显示文摘 | Riad Salem Margaret Gilbertsen Zeeshan Butt Khairuddin Memon Michael Vouche Ryan Hickey Talia Baker Michael M. Abecassis Rohi Atassi Ahsun Riaz David Cella James L. Burns Daniel Ganger Al B. Benson Mary F. Mulcahy Laura Kulik Robert Lewandowski | 2013 | Clinical Gastroenterology and Hepatology2013，，： | 2 |
| 3 | Fibrosis, Portal Hypertension, and Hepatic Volume Changes Induced by Intra-arterial Radiotherapy with 90 Yttrium Microspheres显示文摘 | T. F. Jakobs S. Saleem B. Atassi E. Reda R. J. Lewandowski V. Yaghmai F. Miller R. K. Ryu S. Ibrahim K. T. Sato L. M. Kulik M. F. Mulcahy R. Omary R. Murthy M. F. Reiser R. Salem | 2008 | Digestive Diseases and Sciences2008，，9： | 2 |
| 4 | Elevated serum levels of visfatin in gestational diabetes: a comparative study across various degrees of glucose tolerance显示文摘 | K. C. Lewandowski N. Stojanovic M. Press S. M. Tuck K. Szosland M. Bienkiewicz M. Vatish A. Lewinski G. M. Prelevic H. S. Randeva | 2007 | Diabetologia2007，，5： | 1 |
| 5 | Radioembolization Results in Longer Time-to-Progression and Reduced Toxicity Compared With Chemoembolization in Patients With Hepatocellular Carcinoma显示文摘 | Riad Salem Robert J. Lewandowski Laura Kulik Edward Wang Ahsun Riaz Robert K. Ryu Kent T. Sato Ramona Gupta Paul Nikolaidis Frank H. Miller Vahid Yaghmai Saad M. Ibrahim Seanthan Senthilnathan Talia Baker Vanessa L. Gates Bassel Atassi Steven Newman Khair | 2011 | Gastroenterology2011，，2： | 1 |
| 6 | Radiation Lobectomy: Preliminary Findings of Hepatic Volumetric Response to Lobar Yttrium-90 Radioembolization显示文摘 | Ron C. Gaba Robert J. Lewandowski Laura M. Kulik Ahsun Riaz Saad M. Ibrahim Mary F. Mulcahy Robert K. Ryu Kent T. Sato Vanessa Gates Michael M. Abecassis Reed A. Omary Talia B. Baker Riad Salem | 2009 | Annals of Surgical Oncology2009，，6： | 1 |
| 7 | Radiologic findings following Y90 radioembolization for primary liver malignancies显示文摘 | Saad M. Ibrahim Paul Nikolaidis Frank H. Miller Robert J. Lewandowski Robert K. Ryu Kent T. Sato Sean Senthilnathan Ahsun Riaz Laura Kulik Mary F. Mulcahy Reed A. Omary Riad Salem | 2009 | Abdominal Imaging2009，，5： | 1 |
| 8 | A novel hydrogen sulfide donor causes stomatal opening and reduces nitric oxide accumulation显示文摘 | M. Lisjak N. Srivastava T. Teklic L. Civale K. Lewandowski I. Wilson M.E. Wood M. Whiteman J.T. Hancock | 2010 | Plant Physiology and Biochemistry2010，，12： | 1 |
| 9 | 90Y Radioembolization for Metastatic Neuroendocrine Liver Tumors: Preliminary Results From a Multi-institutional Experience显示文摘 | Thomas K. Rhee Robert J. Lewandowski David M. Liu Mary F. Mulcahy Gary Takahashi Paul D. Hansen Al B. Benson Andrew S. Kennedy Reed A. Omary Riad Salem | 2008 | Annals of Surgery2008，，6： | 1 |
| 10 | Microvesicular Liver Graft Steatosis as a Risk Factor of Initial Poor Function in Relation to Suboptimal Donor Parameters显示文摘 | B. Cie?lak Z. Lewandowski M. Urban B. Ziarkiewicz-Wróblewska M. Krawczyk | 2009 | Transplantation Proceedings2009，，8： | 1 |
| 11 | The economical and environmental performance of miscanthus and switchgrass production and supply chains in a European setting显示文摘 | Edward M.W. Smeets Iris M. Lewandowski André P.C. Faaij | 2008 | Renewable and Sustainable Energy Reviews2008，，6： | 1 |
| 12 | Elevated serum levels of visfatin in gestational diabetes: a comparative study across various degrees of glucose tolerance显示文摘 | K. C. Lewandowski N. Stojanovic M. Press S. M. Tuck K. Szosland M. Bienkiewicz M. Vatish A. Lewinski G. M. Prelevic H. S. Randeva | 2007 | Diabetologia2007，，5： | 1 |
| 13 | Complications Following Radioembolization with Yttrium-90 Microspheres: A Comprehensive Literature Review显示文摘 | Ahsun Riaz Robert J. Lewandowski Laura M. Kulik Mary F. Mulcahy Kent T. Sato Robert K. Ryu Reed A. Omary Riad Salem | 2009 | Journal of Vascular and Interventional Radiology2009，，： | 1 |
| 14 | Development and characterisation of flame-retardant fibres from isotactic polypropylene melt-compounded with melamine-formaldehyde microcapsules显示文摘 | F. Salaün M. Lewandowski I. Vroman G. Bedek S. Bourbigot | 2010 | Polymer Degradation and Stability2010，，1： | 1 |
| 15 | Robotic Partial Nephrectomy with Superselective Versus Main Artery Clamping: A Retrospective Comparison显示文摘 | Mihir M. Desai Andre Luis de Castro Abreu Scott Leslie Jei Cai Eric Yi-Hsiu Huang Pierre-Marie Lewandowski Dennis Lee Arjuna Dharmaraja Andre K. Berger Alvin Goh Osamu Ukimura Monish Aron Inderbir S. Gill | 2014 | European Urology2014，，： | 1 |
| 16 | Radiation Lobectomy: Preliminary Findings of Hepatic Volumetric Response to Lobar Yttrium-90 Radioembolization显示文摘 | Ron C. Gaba MD Robert J. Lewandowski MD Laura M. Kulik MD Ahsun Riaz MD Saad M. Ibrahim MD Mary F. Mulcahy MD Robert K. Ryu MD Kent T. Sato MD Vanessa Gates MS Michael M. Abecassis MD MBA Reed A. Omary MD MS Talia B. Baker MD Riad Salem MD MBA | 2009 | Annals of Surgical Oncology2009，，6： | 1 |
| 17 | Circular External Fixation for Treatment of Distal Humerus Fractures: Case Report显示文摘 | Louis Lewandowski Scott M. Tintle Carl Daniel Joseph A. O’Daniel Mark Fleming John Keeling | 2013 | Journal of Hand Surgery2013，，6： | 1 |
| 18 | Elevated serum levels of visfatin in gestational diabetes: a comparative study across various degrees of glucose tolerance显示文摘 | K. C. Lewandowski N. Stojanovic M. Press S. M. Tuck K. Szosland M. Bienkiewicz M. Vatish A. Lewinski G. M. Prelevic H. S. Randeva | 2007 | Diabetologia2007，，5： | 1 |
| 19 | Elevated serum levels of visfatin in gestational diabetes: a comparative study across various degrees of glucose tolerance显示文摘 | K. C. Lewandowski N. Stojanovic M. Press S. M. Tuck K. Szosland M. Bienkiewicz M. Vatish A. Lewinski G. M. Prelevic H. S. Randeva | 2007 | Diabetologia2007，，5： | 1 |
| 20 | Effects of heat treatment and reinforcement size显示文摘 | Preet M. Singh John J. Lewandowski | 1993 | Metallurgical Transactions A1993，，11： | 1 |
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