News
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New Product Release: Agarose-Based High-Performance Protein A Affinity Chromatography Resin Packing Materials
Monoclonal antibodies have uniform chemical properties and strong specificity, making them a widely used biopharmaceutical. Protein A affinity chromatography resin packing materials, due to its specific binding properties and powerful... -
Tirzepatide Purification by Xtimate C8
This article summaries two applications for process optimization for purifying tirzepatide API with different purity levels. -
Determination of mannitol content with Ultisil HILIC-Amide
Test Report Sample Information Sample Name Mannitol Project Number 20230908-854-01 Sample Batch No. / Sample Characteristics White powder Sample Receipt Date 09/12/2023 Testing Period 09/18/2023 ~ 09/20/2023 Standard Sample Information Name... -
SEC (Size Exclusion Chromatography)
Overview SEC (Size Exclusion Chromatography) is a technique that separates molecules of interest by their molecular size. There are 2 types of SEC separation known as Gel Filtration Chromatography... -
His-tagged protein purification with Ni column, so simple!
Introduction In 1975, Porath et al. proposed a new purification method - immobilized metal chelate chromatography. This method uses coordination-chelation interaction of metal ions (Ni2+, Cu2+, etc.) with residues... -
Separation Method of Protein
Proteins exist in tissues or cells as complex mixtures and each type of cell contains thousands of different proteins. However, there is no single method can remove any type... -
Oxidative damage in GC column
Oxygen is a hazardous substance for most of the capillary columns. At room temperature, the column will not be damaged. But as the column temperature increases, the column will be... -
Introducing Xtimate DLC C18 and Ultisil DLC LP-C18 to Welch Diamond DLC Column Series
The two newly launched diamond-coated chromatography columns by Welch Materials, Inc. in 2023 are likely still fresh in the memories of many enthusiasts! They made a dazzling entrance into the... -
New Series Alert! Welchrom 96-Well Plates Make a Grand Entrance!
Welch Materials, prioritizing product stability, has developed a new series of products, Welchrom® 96-Well Plates, through over a year of technical research and process testing. This series of products is... -
New Product Launch | Liquid Chromatography for the Detection of Benzo(a)pyrene in Food and Feed—Specialized Sample Preprocessing Kit (BAP-04 Model)
According to the new version of the “National Food Safety Standard for Contaminants in Food” (GB2762-2022) implemented in China on June 30, 2023: There are mandatory limits for Benzo(a)pyrene in... -
Maintenance and Care of Liquid Chromatography Systems — Other Aspects
We previously shared ‘6 Steps to Easily Solve Pump Maintenance, No More Urgent Waiting for Engineers Online.’ Now, we continue to share maintenance knowledge about other modules of the liquid... -
Practical Examples in the Chromatographic Purification of Semaglutide
In this article, we share two examples in the purification of fully synthetic semaglutide, using our Ultisil XB-C8 and Xtimate C8 packing materials.
