Tips and Tricks for Handling High Purity Water in the LC-MS Laboratory
Ultrapure water is highly prone to contamination, e.g. it easily leaches contaminants out of container surfaces and absorbs contamination from the laboratory environment. As ultrapure water is the most frequently used solvent in any LC-MS laboratory, its purity plays a critical role in analyses. There are a number of high purity water handling pitfalls that result in degradation of its quality. To help analysts critically evaluate the potential risks involved in poor ultrapure water handling, we discuss here (I) the effect of laboratory environment and long high purity water storage, (II) the effect of the container material used to collect ultrapure water, (III) the effect of laboratory ware and equipment cleaning, and (IV) the effect of poor practices of water purification system usage.
Mitigating High Sample Volume Consumption in AAV Aggregate Analysis Using a Biozen™ dSEC-7 by SEC-FL
April 15th 2024This application note showcases a Biozen dSEC-7 SEC chemistry/fluorescence detector solution, offering reliable AAV aggregate analysis in under 10 minutes with as little as 0.5 µL of sample. Across four AAV serotypes, resolution between monomer and aggregates remains consistently high, emphasizing Biozen dSEC-7's efficiency and ability to maintain accurate detection at minimal injection volumes. Ideal for routine testing, this solution ensures precise measurement of a CQA with streamlined sample consumption.
Adeno-Associated Virus (AAV) Serotype Screen Using a Biozen™ dSEC-7 Size Exclusion Column
April 15th 2024With its 700 Å large pore silica particle and hydrophilic diol-type surface chemistry, Biozen dSEC-7 provides excellent resolution of monomer from dimer peaks in under 8 minutes across four different AAV serotypes. This capability is crucial for optimizing gene therapy biopharmaceuticals, ensuring thorough analytical scrutiny to select the most appropriate serotype(s) for enhanced therapeutic outcomes and immunogenic profiles.
