Comparative resin kinetics using in situ fluorescence measurements.

نویسندگان

  • Daniel P Walsh
  • Christopher Pang
  • Puja B Parikh
  • Young-Soo Kim
  • Young-Tae Chang
چکیده

The aminolysis of a novel activated ester resin was utilized for kinetic study via continuous in situ fluorescence measurements. A variety of resin compositions (polystyrene, JandaJel, ArgoPore, TentaGel, NovaGel, and PEGA) and solvents (dimethylformamide, acetonitrile, tetrahydrofuran, 1,2-dichlorethane, and toluene) were tested to compare their effects on the reaction rate. A linear relationship between the reaction rate and (solvent polarity x swelling of resin) was elucidated for the aminolysis reaction.

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

Synthesis and Hydrolysis Monitoring of Sasrin-like Resin Bound Imines by Fluorescence Spectroscopy

Merrifield resin was converted to various dialkyl-trihydroxybenzaldehyde resins and then to different bound imine resins. Fluorescence spectroscopy was used to continuously monitor the intermediates performed on the resins. Using fluorescent label (dansyl chloride) information on the kinetics of the amine cleavage was obtained. This study demonstrated that direct measures of fluorescence intens...

متن کامل

Detection of abl/bcr Fusion Gene in Patients Affected by Chronic Myeloid Leukaemia by Dual-Colour Interphase Fluorescence in situ Hybridisation

Conventional cytogenetic is the standard technique for detection of Philadelphia (Ph) chromosome in chronic myeloid leukemia (CML). Evaluation of abelson murine leukemia/breakpoint cluster region (abl/bcr) fusion using dual-colour fluorescence in situ hybridization (D-FISH) is an alternative approach allowing rapid and reliable detection of the disease. We employed the technique of interphase D...

متن کامل

Accuracy Assessment of Interphase Fluorescence In-Situ Hybridization on Uncultured Amniotic Fluid Cells

a:4:{s:10:"Background";s:431:"Parental anxiety while waiting for the results of amniocentesis has been investigated by many authors. It seems that the implementation of faster techniques such as fluorescence in-situ hybridization (FISH) will have some benefits in reducing this anxiety. Besides the patients' attitudes to choosing this method, gynecologists who are the persons responsible for tre...

متن کامل

دورگه‌سازی در محل؛ اصول و کاربردها : مقاله مروری

In situ hybridization (ISH) is a method that uses labeled complementary single strand DNA or RNA to localize specific DNA or RNA sequences in an intact cell or in a fixed tissue section. The main steps of ISH consist of: probe selection, tissue or sample preparation, pre-hybridization treatment, hybridization and washing, detection and control procedure. Probe selection is one of the important ...

متن کامل

A Comparative Study of Field Gamma-ray Spectrometry by NaI(Tl) and HPGe Detectors in the South Caspian Region

Natural radionuclides present in soil as well as certain anthropogenic radionuclides released to the environment are the major contributors to terrestrial outdoor exposures. In the assessment of human exposures from environmental radioactivity, besides the conventional method of soil and vegetation sampling combined with laboratory based analyses of environmental media, the other choice would b...

متن کامل

ذخیره در منابع من


  با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

عنوان ژورنال:
  • Journal of combinatorial chemistry

دوره 4 3  شماره 

صفحات  -

تاریخ انتشار 2002