- Primary Structure Analysis
- High-resolution mass spectrometry molecular weight
- MALDI TOF mass spectrometry analysis
- N-terminal sequence analysis
- C-terminal sequence analysis
- N/C terminal sequence analysis
- Analysis of the K deletion ratio at the C-terminus of antibodies
- LC-MS/MS protein full sequence validation
- Peptide coverage / Peptide spectrum analysis
- Protein peptide profile determination
- Amino Acid Composition Analysis
- Extinction coefficient analysis
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- Advanced Structural Analysis
- Charge Heterogeneity Analysis
- Impurity Analysis
- Native Mass Spectrometry
- SDS-PAGE protein purity analysis
- Protein purity analysis (size exclusion/reverse phase chromatography)
- Host Cell Protein Residue (HCP) Analysis Service
- Antibody-Drug Conjugates (ADCs) Analysis
- Protein content analysis
- Product-related impurity analysis
- Analysis of other process-related impurities
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- Special Analysis
- Primary Structure Analysis
What are the reasons for HPLC peak tailing or the appearance of double peaks?
1. Sieve plate blockage or column failure - Backflush the column, replace the sieve plate, or change the column; 2. Presence of interference peaks - Change the mobile phase or switch to a column with better selectivity; 3. Column overload - Reduce the sample injection volume.
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