Welchrom® Immunoaffinity Column is used to separate and purify mycotoxins from samples based on specific reactions between antigens and antibodies. Antibodies in the immunoaffinity column suspend in the gel by covalent bonding and specifically adsorb the mycotoxin in the sample. If the sample being tested contains the mycotoxin, the toxin Read more…
Core-shell column shows high column efficiency, low back pressure, high sensitivity, but majority of people may not know the reasons. In order to understand the characteristics of the core and shell column, Van Deemter equation is recommended to know first. When we study chromatographic theory, rate theory is required to explain the broadening of peak. Read more…
In the process of doing experiments, it is inevitable to use some instruments to accelerate experiments and accomplish tasks that can not be accomplished by hand. So some useful experimental instruments can be recommended as follows. Visual Termovap Sample Concentrator The termovap sample concentrator is mainly used for the concentration Read more…
P/N：00836-00003 Features ● 20% higher derivative effect than the previous generation ● Extended 450% lifetime compared to previous generation ● Additional leakage warning ● With light status warning and working status indicator ● Additional light change warning and other practical functions ● The working state can be monitored in the distance through the screen Improved Read more…
Outline Welch Materials have concentrated on GC R&D and production for many years, and each column would be tested strictly before selling with attached column report. Welch columns are characterized by stable properties, high column efficiency and good reproducibility. Welch Gas column can be divided into two types: WM Series Read more…
Do you still feel tired about complicated and time-consuming autosampler selection? In pursuit of more efficient and faster sample injection, Welch provides preparative autosampler below. Preparative Autosampler Features 277×280×335 mm Switch valve + electric valve + plunger pump mode Electric six-way valve Software can be controlled by program Weight：10.5 kg Parameters Read more…
Ulisil ODS-3 column is packed with high water-resistance octadecyl reversed-phase packing material. This packingmaterial is strictly endcapped with hydrophilic groups, which brings perfect peaks and low adsorption for both alkalineand acid compounds. The 100% water-resistance packing material avoids the collapse of stationary phase and applies to the separation and determination of Read more…
Sail 1000 contains Constant Flow Pump,uV-Vis Detector and Fraction Collector etc., using front panel or EasyChrom Workstation to operate. It has features like linear amplification, high sample loading, short preparation time and solvent saving, ensuring stable results. lt applies to the separation of natural products, purification and separation of organic compounds, screening of new drug compounds Read more…
Disinfectant, as common protective products at home, is difficult to find a good product in the existing market. To solve the problem of the limited disinfecting scope and the short effective time, Dr. Wang, who has been working with Welch for more than 20 years in biomedical industry, has jointly Read more…
Do you still feel tired about complicated and time-consuming sample preparation? In pursuit of more efficient and faster sample pretreatment, Welch launched a new generation of product- SinCHERS pretreatment purification column. Compared with traditional SPE technology, SinCHERS column greatly improved detection efficiency. Compared with the QuEChERS, its purification process does not require centrifugation again and Read more…