Knowledge Base
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Distinguishing Key Time Concepts in Chromatography Analysis
Learn about essential chromatography time concepts like retention, dead, adjusted retention, relative retention, and delay time for accurate analysis and method development. -
Recommended Products for Pre-treatment of Semi-Volatile Organic Compounds (SVOCs)
Volatile Organic Compounds (VOCs) Volatile Organic Compounds (VOCs) refer to organic compounds that have a high vapor pressure (greater than 13.33 Pa), low boiling point, and small molecular weight under... -
Understanding Pesticide Residue: A Scientific Perspective
As people continue to pursue a green and healthy lifestyle, pesticide residues are receiving increasing attention. Are pesticide residues really that terrifying? Are the fruits and vegetables we encounter daily... -
Intrinsic Dissolution Testing Is Here， Are You Ready?
For the new inherent dissolution testing, we find ourselves both familiar and unfamiliar. We are familiar with it because it falls within the realm of dissolution, yet unfamiliar due to... -
Introduction to High-Capacity Ion Exchange Chromatography Media
Ion exchange chromatography, as the most classic separation mode in the field of biomacromolecule separation and purification, currently occupies a considerable market share. The basic mechanism for separating proteins using... -
Final Step Before Analyzing the Sample(Filtration): Did You Choose the Right Method?
After a complex pre-treatment process, many lab technicians might feel uncertain before analysis: With so many filter membranes available, which one should be chosen for filtration before proceeding with the analysis? -
Investigating Case 6: Uncovering Overlooked Factors Behind a Poor Baseline
Let's talk about the issue of baselines -
How to Resolve the Separation Issues of 11 Synthetic Colorants in Food?
Colorants, also known as food dyes, are substances primarily used to color food and improve its appearance. Currently, there are more than 60 commonly used food colorants worldwide, which can... -
Why is the detection limit 3 times the signal-to-noise ratio
The detection limit and quantitation limit are important attributes of analytical methods. However, in actual scientific research, many colleagues only know that the detection limit is 3 times the signal-to-noise... -
One column one method vs one column multi-method, which one is more effiective?
One column one method vs one column multi-method, which one is more effective? Scenario 1: Ah, what on earth is this unknown peak? It's been interfering with my target peak... -
What's the Maximum Lifespan of a Welch HPLC Column?
Over the past two months, our China Marketing team has organized an event called the "Longest-serving Welch HPLC Column Collection Campaign" Which has now come to a close. These two... -
How to Achieve Optimal Mobile Phase Performance: 6 Key Points
Hello, everyone, Today, I'm sharing with you The filtration, storage, degassing, and replacement precautions of the mobile phase. Filtration of the mobile phase All solvents must be filtered through a...
