We provide one-stop quality testing and purification services for Targeting Peptide development, supporting full-process quality control from research-grade to pre-GMP stages. Our services cover high-resolution mass spectrometry, HPLC purity analysis, amino acid composition analysis, terminal modification verification, isotope labeling detection, and more, ensuring that every Targeting Peptide meets your downstream application requirements in terms of structure, purity, and functional modifications.
For purification, we offer multiple chromatography strategies (RP-HPLC, IEX, SEC, etc.) to achieve high-purity peptide products with ≥95% and even ≥99% purity, and we support customized purification solutions for special structures such as cyclic peptides, lipopeptides, and glycopeptides. All services come with standardized analytical reports, suitable for cutting-edge research in drug development, targeted delivery systems, bioimaging, immunodiagnostics, and more.
High-Resolution Mass Spectrometry (HR-MS / LC-MS)
Accurate molecular weight determination to verify the molecular structural integrity of Targeting Peptides.
Detection of modification sites (e.g., phosphorylation, PEGylation, fatty acid modifications).
High-Performance Liquid Chromatography (HPLC)
Purity analysis (typically ≥95%, with options for ≥98% or ≥99% purity upon request).
Chromatogram reports with quantification by peak area normalization.
UV-Visible Spectrophotometry (UV-Vis)
Detection of peptides containing aromatic amino acids or specific labels (e.g., FITC, Cy5).
Analysis of concentration and labeling efficiency.
Amino Acid Composition Analysis (AAA)
Verification of peptide composition consistency with design; commonly used to confirm sequence integrity.
Terminal Analysis (N-terminal / C-terminal)
Confirmation of modification sites such as acetylation, amidation, fluorescent labeling, etc.
Isotope-Labeled Targeting Peptide Detection
Detection of stable isotope labels like 13C, 15N.
Applicable to Targeting Peptides used in quantitative proteomics (e.g., SILAC, MRM).
Microbial and Endotoxin Testing (for cell or animal experiments)
Ensures safety and reproducibility of biological experiments.
Reversed-Phase High-Performance Liquid Chromatography (RP-HPLC)
Gradient elution purification of crude peptides using C18 columns.
Optimization of gradient conditions based on hydrophilicity/hydrophobicity properties.
Preparative HPLC Purification
Large-scale purification (from tens of milligrams to grams).
Multi-level purity separation achievable (≥90%, ≥95%, ≥98%, etc.).
Ion Exchange Chromatography (IEX)
Enhances purity and homogeneity for peptides with strong charge properties.
Size Exclusion Chromatography (SEC / GPC)
Removes aggregates or high molecular weight impurities to ensure monomeric state of peptides.
Customized Purification Solutions for Specially Modified Peptides
Tailored purification processes for complex structures such as cyclic peptides, branched peptides, lipopeptides, glycopeptides, etc.
HPLC Fraction Packaging Service
Provides sample packaging of different purity grades and batches according to customer requirements.
Lyophilization and Packaging: Offering mg to gram scale lyophilization with customizable packaging formats (e.g., 1 mg/vial, 10 mg/bottle).
Targeting Peptide Label Detection: Detection and verification of functional labels such as FITC, Cy5, Biotin, TAMRA, DOTA, NHS, etc.
Customized Analytical Reports: Includes HPLC chromatograms, mass spectrometry data, labeling efficiency, modification confirmation, and meets documentation requirements for submissions.
Years of experience and a professional technology platform provide high-quality assurance for Targeting Peptide research and applications.
From customized planning to report delivery, we provide standardized and traceable process management to ensure efficient and transparent service.
Clients provide Targeting Peptide information (sequence, modifications, purity requirements, testing items, etc.). We conduct technical evaluation and provide a quotation and delivery timeline.
We accept crude peptide samples or synthesized peptide materials according to client requirements, and perform preprocessing such as lyophilization reconstitution, filtration, or concentration.
Conduct tests as needed, including LC-MS, HPLC, AAA, UV, terminal modification detection, etc.
Provide chromatograms and raw data records.
Use RP-HPLC, IEX, SEC, and other techniques to prepare peptides meeting the set purity standards.
Optimize purification parameters for special structures.
Perform final purity testing, label verification, concentration measurement of purified Targeting Peptides, and deliver complete analytical reports.
Clients confirm delivery of samples and analysis reports.
Extended support available for scale-up preparation or customized modified peptide services.
Due to their specific binding ability and excellent biocompatibility, Targeting Peptides are widely applied in various cutting-edge biomedical fields.
Such as tumor targeting and peptide-drug conjugates (PDCs).
Carry fluorescent, radioactive, or other labels for in vivo imaging or in vitro detection.
Coupled with antigens or adjuvants to form targeted vaccines enhancing immune recognition.
Used in screening platforms for targets such as GPCRs and integrins.
Targeting Peptides for recognizing tumor cells, pathogens, or specific metabolites.
Coupled on surfaces of nanoparticles, liposomes, exosomes, and other carriers for targeted delivery.