My watch list
my.chemeurope.com  
Login  

10 Current white paper about the topic water

rss
matching the following criteria

image description
Meeting UHPLC Needs with High Purity Water

21-11-2013

In recent years, the advent of Ultra High Performance Liquid Chromatography (UHPLC) has broadened the scope of laboratory applications, making it possible to attain extremely low detection limits. Certain requirements exist, however, when working with this very sensitive analytical technique: ...

more

image description
Characterizing Biotherapeutics with HPLC

Smart Solutions for large Molecules

24-11-2010

As demonstrated here, there are a broad range of HPLC applications used in development, production, validation and release of protein therapeutics for human use. Some of the applications mentioned above are mandatory when submitting a new biopharmaceutical to approval at the regulatory agencies. ...

more

image description
Analysis of water soluble polymers using linear size exclusion HPLC columns and a semi-micro SEC system

16-11-2010

One of the most widely used water-soluble polymers is Polyvinylpyrrolidone (PVP). For more than 70 years it is applied in a variety of applications in medicine, pharmacy, cosmetics and industrial production. PVP binds to polar molecules exceptionally well. It supports the solubility of tablets in ...

more

image description
Field-Flow Fractionation - The Universal Separation Principle for Particle and Macromolecule Characterization

22-09-2010

High molecular weight polymers, bio molecules or particles in a range of a few nanometers up to several microns are more and more important in science and technology. Many applications are based on the specific properties of these materials. For this reason, an exact knowledge of the molar mass ...

more

image description
Size and element specific determination of Ag nanoparticles in consumer spray products using asymmetric flow field flow fractionation (AF4) coupled to ICPMS

10-09-2010

The use of nanoparticles in consumer products shows a tremendous increase over the past years. A study of the Woodrow Wilson International Centre for Scholars reported that between 2005 and today the number of products based on nanoparticles increased almost twentyfold from 54 to 1015. As active ...

more

image description
Absolute Molar Mass Characterisation

27-11-2009

Multi-angle light scattering coupled to SEC or other fractionation methods can provide an absolute means for measuring the molar mass, size and distribution of proteins, polymers and particles of all sorts. Wyatt Technology's MALS also enables the elucidation of additional data such as branching, ...

more

image description
Automated Dynamic Light Scattering

09-11-2009

DLS analysis is a widely applied, non-invasive method for measuring the effective size of molecules in solution. This technique yields valuable information for the characterization of molecules and particles. It facilitates formerly laborious and time consuming measurements, e.g. screening for ...

more

image description
Accurate Mass and TIPTM: Two Dimensions for Elemental Composition Determination: microTOFTM Featuring Unique TIPTM

10-03-2005

The ESI-TOF mass spectrometers micrOTOF and micrOTOF focus do not only provide accurate mass measurements but additionally describe the True Isotopic Pattern TIPTM. For molecular formula generation this unique combination significantly reduces the number of possible formula candidates and the ...

more

image description
A Platform System for Microwave Sample Preparation

Multiwave 3000

27-01-2005

Today's technology enables the near-perfect determination of trace elements in all concentrations down to the ultra trace range. Modern AAS, ICP-OES, ICP-MS or electrochemical procedures such as voltammetry are reliable and accurate measuring methods for almost every type of task. However, in ...

more

image description
Half a Century of Chromatography with Agilent and Predecessors

One Century of Chromatography with Twsett (1903)

01-10-2004

Twsett originated the chromatography with his work about the separation of chlorophyll in 1903. For some time it was relatively quite around this new technology. Exceptions were the workings of Kuhn and Lederer (1931) as well as of Hesse (1936 and 1942). A break through succeeded to E. Cremer ...

more

Page 1 From 1
Subscribe to e-mail updates relating to your search

You will receive via e-mail the latest search results matching your search criteria. This service is free of charge and can be cancelled at any time.

Your browser is not current. Microsoft Internet Explorer 6.0 does not support some functions on Chemie.DE