News
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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... -
6 Easy Steps to Pump Maintenance – No More Waiting for Engineers Online
Liquid Chromatography Instruments are commonly used in our labs, with the pump being a crucial component. Learn how to optimize your liquid chromatography usage and perform effective pump maintenance with... -
Pump Maintenance
Pump maintenance is an important part in the liquid chromatography system module. Actually, many problems in LC systems can be traced back to the pump. Normally, the pump of the... -
Preliminary Diagnosis of Malfunction in Liquid Chromatography Module
As is known to us all, the module malfunction of liquid chromatography instrument is very harmful, which not only wastes time, samples, energy and money, but also seriously interferes with... -
Tips for Column Storage Before the Holiday
LC Column Flush and store the column according to the instructions. It is recommended to detach the column for storage during holidays. ✦ Reversed-phase column For C18, C8, F-C8, C30,... -
Aging of Column
As is known to us all, in the process of gas phase analysis, column is the "heart" of gas chromatograph, and it plays a crucial role in the qualitative and... -
Autumn is coming, please put on clothes for your column
When many analysts operate liquid chromatogram, columns work at room temperature. If the temperature in the laboratory can be kept constant, problem barely occurs. However, most working places’ temperature constantly... -
Flushing and Regeneration of Column Based on Polymer
Introduction of Column Based on Polymer Polymer matrix columns (Sugar-H, Sugar-Ca) may be contaminated, resulting in decreased column efficiency. Thus, flushing and regeneration are required. However, when flushing these columns... -
Poor Peak Shape, and How to Improve It
When the injection volume of test substance within the range of the security, changing injection volume will affect the peak height and peak area accordingly. But the influence of retention... -
Methods for Prolonging the Column Lifetime
Your column may suffer from short working life, which not only causes rising costs, but also impacts the experimental results. Today, we invite Welch engineers to answer questions about how... -
Gradient Optimization of Liquid Chromatography
In liquid chromatography, for samples with complex components, it is often difficult to use a single chromatographic system to achieve ideal separation effect. Either the separation time is too long,... -
Flushing and Regeneration of Reversed-Phase Column
Do you know the maintenance methods of Welch columns? Some people may use the wrong way to flush columns unconsciously, so it is recommended to learn some practical methods for...
