Application Notes: Polymers
Ultratrace Quantitative Analysis of Catalyst Poisoners using a Dedicated GC–MS Analyser
April 1st 2012A GC–MS analyser is described that is reported to substantially expand the workable application range of a classic catalyst contaminants analyser. The use of FS/SIM mode permits identification of unknown contaminants in combination with reliable quantification at trace and ultratrace amounts.
The Potential of Polymer Monolithic Capillary Columns for the LC–MS Analysis of Intact Proteins
Describes the preparation of a reversed-phase monolithic column with an optimized porous structure to separate intact proteins using LC–MS.
Analysis of Over 15 Million Dalton Polymers by Aqueous SEC Method
February 1st 2012Size exclusion chromatography (SEC) is a simple HPLC technique used for the molecular weight (MW) distribution analysis of polymers. Several manufacturers provide SEC columns with different base materials and various pore sizes to cover a wide range of polymer analysis.
Resistive Glass Inlet Tubes Increase Ion Throughput
February 1st 2012Resistive glass tubes and plates are designed to guide ions by generating a uniform electric field. PHOTONIS resistive glass products are composed of a proprietary lead silicate glass that has been specially processed to create a resistive layer at the surface. The resistivity can be varied over several orders of magnitude to suit the specific application.
The Potential of Polymeric Monolithic Capillary Columns for the LC–MS Analysis of Intact Proteins
Describes the preparation of a reversed-phase monolithic column with an optimized porous structure to separate intact proteins using LC–MS.