Pre-freezing your samples prior to lyophilization is a very important step.
Defines vacuum concentration and discusses bumping and factors affecting solutes and evaporation rates.
Abstract: A new Type of Class II BSC has emerged that will simplify the selection process and provide true flexibility in modern laboratories needing both chemical and biological protection. Along with 3rd party validation in biological challenges by NSF International®, the Purifier Axiom Class II BSC was put under ASHRAE 110 containment testing for chemical hazards to verify its ability to handle chemical hazards as well as a fume hood.
Describes the effect of temperature fluctuations on protein samples and using the Refrigerated CentriVap Centrifugal Concentrator to control these fluctuations during protein purification.
This application note discusses the factors affecting the life of a carbon filter and a formula for calculating the theoretical filter life.
This Labconco application note briefly discusses the various options for removing solvents including evaporation, vacuum concentration, lyophilization, reverse extraction, dialysis and precipitation.
Test procedures are suitable for detecting detergent residues resulting from improper rinsing and can be used to meet laboratory accreditation guidelines and questionnaires such as the College of American Pathologist program of state water lab accreditation programs.
Article discusses factors to consider when developing a vacuum concentration protocol including solute properties, salt concentration, solvent boiling and freezing points, vacuum pressure, temperature and surface area.
Approximate Freeze Drying Times, Procedure for Freeze Drying Fish Samples for Volatile Substances Using a 4.5 Liter Freeze Dry System, Extraction and Analytical Method for "Microcystin LR" in Cyanobacteria Samples, General Freeze Dry Application for Snake Venom and Other Small Volume Samples of 0.4 ml or Less, Freeze Drying Fungi, General Freeze Dry Application for Monitoring Soil Samples, Freeze Dry Applications for Monitoring Anti-Cancer Drugs and Freeze Drying Mango Powder.
Describes the method of using the RapidVap Vertex per US EPA Method 8270, US EPA Method 550.1 and US FDA LIB No.# 4438.
The Use of Centrifugal Concentrators with Formaldehyde.
he Use of Centrifugal Concentrators for HPLC Work with Isocyanates.
Describes the concentration of various organochlorine pesticides in extracts from solid and liquid matrices using the RapidVap N2 Evaporation System.
This application note shows results of testing conducted by Heritage Environmental Services using the RapidVap N2 Evaporation System.
Describes the concentrations of polychlorinated biphenyls (PCBs) as Aroclors or as individual PCB congeners in extracts from solid, tissue and aqueous matrices using the RapidVap N2 Evaporation System.