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? -
Comprehensive Guide to Guard Columns and Pre-Columns
Guard Columns and Pre-columns (Online Filters) These are items commonly used in daily laboratory experiments. However, many people have doubts, They look so similar, Aren't they the same thing? What... -
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... -
HPLC Content Determination Method Validation: A Comprehensive Guide
Often there are some analysts who make some basic mistakes and feel at a loss when problems arise. Today, let's focus on the key points of the operational process for... -
Unraveling the Case: The Reason Behind Poor LC RSD!
Hello everyone, liquid chromatography(LC) is one of the most commonly used large-scale analytical instruments for us, serving as a great companion in our work. However, due to improper usage or...