Reactive MALDI mass spectrometry: application to high mass alkanes and polyethylene.

نویسنده

  • William E Wallace
چکیده

A molecular solid of fullerene (C(60)) intercalated with cobalt cyclopentadienyl dicarbonyl (CoCp(CO)(2)) was shown to be an effective matrix for matrix-assisted laser desorption/ionization mass spectrometry (MALDI) of large alkanes (demonstrated up to C(94)H(190)) and polyethylenes that otherwise cannot be produced as intact ions in the gas phase.

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

Prediction of the Presence of Lipid Derivatives in Follicular Fluid and Reproductive Outcome among Infertile Women by MALDI Mass Spectrometry Method

It has been documented that specific follicular fluid (FF) biochemical characteristics may be essential to determining oocyte quality. Lipid derivatives have most important role in the fertilization process and embryonic development. MALDI mass spectrometry is used for the diagnosis of biomolecules in the FF and serum of infertile women. FF and blood samples from 13 infertile women (20-38...

متن کامل

Application Note ET-35 ESI and MALDI Tandem Mass Spectrometry of Poly(ethylene imine)s: A Comparison Study for Structural Characterization

ESI-Q-TOF and MALDI-TOF/TOF mass spectrometers were utilized to elucidate the macromolecular structures of linear poly(ethylene imine) (PEI) polymers, which are of importance in gene delivery. A detailed characterization of linear PEIs was performed by tandem mass spectrometry (MS/MS). This study provides important information with regard to the fragmentation mechanism of PEI polymers and the c...

متن کامل

Comparing MALDI-ToFMass Spectrometry with Molecular and Biochemical Methods in Identifying Enterococcus Faecium and Enterococcus FaecalisIsolated from Clinical Samples

Abstract Background and Objective: Enterococci are Gram-positive members of human gastrointestinal flora,in Dairy products and environment. they have emerged as important causes of opportunistic nosocomial infections in recent years. In this study we aimed to investigat and compare the efficiency of MALDI-TOFmass spectroscopy method through Biochemical and Molecular methods for detecting Enter...

متن کامل

MALDI-MS: a Rapid and Reliable Method for Drug-to-Antibody Ratio Determination of Antibody-Drug Conjugates

Background: It is believed that the loading value of anticancer drug conjugated to the monoclonal antibody, called drug-to-antibody ratio (DAR), is the main quality feature of antibody-drug conjugates. Methods: In this study, matrix assisted laser desorption/ionization mass spectrometry was used to determine the average molecular weight of trastuzumab and its three conjugated forms. The differe...

متن کامل

Development of an Organic Lateral Resolution Test Device for Imaging Mass Spectrometry

An organic lateral resolution test device has been developed to measure the performance of imaging mass spectrometry (IMS) systems. The device contains periodic gratings of polyethylene glycol (PEG) and lipid bars covering a wide range of spatial frequencies. Microfabrication technologies were employed to produce well-defined chemical interfaces, which allow lateral resolution to be assessed us...

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:
  • Chemical communications

دوره 43  شماره 

صفحات  -

تاریخ انتشار 2007