High-Performance Liquid Chromatography (HPLC), also known as high-pressure, high-speed, or modern liquid chromatography, is commonly referred to as HPLC. It is a highly efficient and rapid method for separating compounds that was first developed in the mid-1960s. It wasn’t until the late 1970s that it came into widespread use for the separation and purification of proteins, and it has since become one of the most effective methods for this purpose.

Compared to classical atmospheric-pressure chromatography, it has the following characteristics:

1. HPLC separates and purifies proteins rapidly. A single run typically takes about half an hour, significantly reducing the time required for protein purification;

2. It offers high resolution. A 10-cm-long column can separate more than a dozen different substances;

3. It is highly versatile and flexible; virtually all proteins can be separated and purified using different HPLC methods based on their distinct properties (isoelectric point, hydrophobicity, molecular weight, charge distribution, etc.);

4. It offers high sensitivity. HPLC now widely employs various highly sensitive detectors, such as UV, fluorescence, and conductivity detectors. Fluorescence detection sensitivity can reach 10⁻⁹ g;

5. Good reproducibility; when conducting protein analysis experiments, the error generally does not exceed 5%.

    Therefore, HPLC plays an extremely important role in protein separation and purification. Of course, HPLC also has its drawbacks; for example, the equipment is expensive, and although preparative columns are available, the yield remains limited. In some methods, the use of organic solvents may have a certain impact on protein activity. A high-performance liquid chromatograph is a specialized instrument for high-performance liquid chromatography. There are many types; by category, they are divided into general-purpose HPLC systems and specialized instruments; by function, they are classified as analytical, preparative, or combined analytical and preparative systems. 

The main advantages of high-performance liquid chromatography (HPLC) are: 

1. Higher resolution than other chromatographic methods;

2. Fast analysis, taking anywhere from ten to several tens of minutes to complete;

3. High reproducibility;

4. High-performance chromatographic columns can be reused; 

5. Automated operation and high analytical accuracy. Based on the differences in the interactions between solute molecules and the stationary phase during the separation process, HPLC can be classified into four basic types: liquid–solid chromatography, liquid–liquid chromatography, ion-exchange chromatography, and size-exclusion chromatography.

    In the field of biology, HPLC is widely used for the separation and identification of the following compounds: (1) amino acids and their derivatives; (2) organic acids; (3) steroid compounds; (4) alkaloids; (5) antibiotics; (6) carbohydrates; (7) porphyrins; (8) nucleic acids and their degradation products; (9) proteins, enzymes, and peptides; (10) lipids, etc.

    KMD Bioscience utilizes advanced high-performance liquid chromatography (HPLC) technology to provide efficient and precise protein purification solutions tailored to the specific needs of the protein purification field. Through meticulous operational control and optimized separation conditions, HPLC technology enables the rapid separation and purification of high-purity proteins in a short time, significantly improving the efficiency and quality of protein preparation. Our HPLC protein purification services include, but are not limited to, the precise qualitative and quantitative analysis of target proteins, impurity analysis, and protein activity validation, ensuring that the protein products we provide meet the high standards of the research and biopharmaceutical industries. The KMD Bioscience team possesses extensive experimental experience and professional expertise, enabling us to provide customized protein purification solutions tailored to specific client needs, thereby contributing to the success of research projects and the development of biopharmaceutical products.