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Tangential Flow Filtration in Downstream Bioprocessing

There are many options for tangential flow filtration (TFF) in downstream bioprocessing from multi-use to single-use TFF or batch TFF and single-pass TFF.

Single-Pass Tangential Flow Filtration Implementation and Scaling

Get practical guidance on using single-pass tangential flow filtration in your downstream process and scaling between capsules and cassettes.

Viscosity Reduction in High Concentration TFF

This overview describes how use of viscosity-reducing excipients can address viscosity challenges in high concentration tangential flow filtration (TFF) and improve process economics.

Bioburden Control in Bioprocessing

Bioburden control in bioprocessing requires assessing the risks, mitigating the risks, and monitoring bioburden levels.

Quantification and Quality Control via CCM Fingerprinting

Learn about rapid and cost-effective identification of more than 100 media formulation components using LC-MS cell culture media fingerprinting.

Sterilizing Grade Filtration Unit Operations for Plasmid DNA Processes

We discuss the final filtration step of plasmid DNA manufacturing and its key considerations and challenges. Download our free pDNA downstream purification eBook or ask our experts.

Membrane Prefilters Improve Sterilizing Filter Capacity and Process Economics in Bioprocessing

Prefilters can be used throughout bioprocessing to remove to remove particulates, improve quality and protect sterilizing filters and downstream unit operations.

An Introduction to Horseradish Peroxidase (HRP) and Its Applications

Horseradish peroxidase (HRP) is an enzyme used for detecting molecules, degrading toxins, cross-linking proteins, and in diagnostics like lateral flow assays.

Ultrafiltration/Diafiltration (UF/DF) in Plasmid DNA Manufacturing

How are ultrafiltration and diafiltration used in plasmid DNA manufacturing and how should you optimize this process? Learn more in our technical article and download our free eBook.

Viral Safety in Bioprocessing

Viral safety in bioprocessing relies on a framework of (1) preventing contamination, (2) detecting contamination, and (3) removing or inactivating viral contaminants.

Cell Counting Using a Hemocytometer

Cell counting protocol using a hemocytometer for monitoring cell viability. Discover other cell counting tools such as the Scepter™ 3.0 Cell Counter.

Tangential Flow Filtration in the Antibody Drug Conjugate (ADC) Manufacturing Process

Find best practices for using Pellicon® Capsules in ADC processing as well as data from two studies using Pellicon® Capsules and Pellicon® cassettes in the ADC manufacturing process.

Water Determination in Liquefied Petroleum Gas using GC BID and Ionic Liquid Column Watercol™

Using Watercol™ GC columns in conjunction with GC-BID can provide a reliable and practical option for Water determination in petrochemical feedstocks.

FAME Standard for Optimizing GC System Performance

AOCS and AOAC methods for determining the trans fatty acid composition of foods by gas chromatography require the use of a highly polar cyanosilicone capillary column to provide the best peak resolution attainable of the numerous geometric (cis & trans)

Fast and Reliable Environmental Analysis of Aldehyde and Ketone Air Pollutants

Aldehydes and ketones are ubiquitous air pollutants. Along with esters and ethers, they are major components of indoor air pollution and are therefore important for industrial hygiene applications.

Neonicotinoids

Learn more about Neonicotinoids - active substances used in plant protection products to control harmful insects.

Capillary GC Columns for GC x GC

GCxGC excels in compound resolution, making it indispensable in analytical chemistry for complex samples.

GC Analysis of C5-C12 n-Alkanes and BTEX on SUPELCOWAX® 10

Separation of null

Ionic Liquid GC Columns

Ionic liquid capillary GC columns enhance polar analyte inertness, addressing challenges in chromatography with improved stationary phases.

OSHA Method 52: GC Analysis of Formaldehyde on SUPELCOWAX 10 After Collection/Desorption Using ORBO-24

Separation of Formaldehyde solution

Analytical Method: Analytical Quality Assurance, Standard for Chlorine dioxide

Preparation of a standard solution for Chlorine dioxide acc. to DIN EN ISO 7393

Analytical Method: Analytical Quality Assurance, Standard for COD/Chloride

Preparation of a standard solution for COD/chloride

Analytical Method: Analytical Quality Assurance, Standard for Hydrogen peroxide

Preparation of a standard solution for Hydrogen peroxide

Analytical Method: Analytical Quality Assurance, Standard for Sulfide

Preparation of a standard solution for Sulfide

Analytical Method: Analytical Quality Assurance, Standard for Sulfite

Preparation of a standard solution for Sulfite

Analytical Method: Analytical Quality Assurance, Standard for Total Chlorine

Preparation of a standard solution for total chlorine.

Cell Density measurement by OD600 Method

Optical density measurement of bacterial cells at 600 nm using pre-programmed method in Spectroquant® Prove spectrophotometers.

Analytical Method: COD Measurement in Waste Water (Rapid-Digestion Method)

Analytical Method COD measurement in wastewater - Photometric determination of chromate consumption subsequent to digestion in 20 min.

Determination of Ammonium in Mineral Fertilizer

Photometric determination of ammonium ions in mineral fertilizer samples by indophenol blue method using Spectroquant® test kits and spectrophotometer.

Determination of the deterioration of Bleachability Index (DOBI) of Raw Palm Oil acc. to DIN EN ISO 17932:2011

Method: UV/VIS spectrophotometry; Method No. 2524

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