CD BioSciences is a leading provider of cutting-edge mass spectrometry services for biological species identification and environmental monitoring. We utilize advanced mass spectrometry techniques to deliver accurate, rapid, and comprehensive analyses for a wide range of applications, helping researchers, conservationists, and industries gain valuable insights into biodiversity, ecological health, and environmental impact.
Fig 1. Identification of bacteria using mass spectrometry techniques (Lukas K.,
et al., 2013)
Introduction to Mass Spectrometry for Species Identification
Mass spectrometry is a powerful analytical technique that measures the mass-to-charge ratio of ions. In the context of biological species identification, this involves analyzing the unique protein and peptide profiles of organisms. Each species possesses a distinct proteome, a "fingerprint" of proteins, which can be accurately identified through mass spectrometry. This method offers significant advantages over traditional identification methods, such as morphological observation or DNA sequencing, particularly for complex samples, degraded material, or when rapid identification is crucial.
Technical Principles
The process of mass spectrometry for species identification involves several key steps:
- Sample Preparation: Biological samples, such as tissue, blood, or environmental samples, are processed to extract proteins. These proteins are then digested into smaller peptides, which are more readily analyzed by mass spectrometry.
- Ionization: The extracted peptides are ionized, typically using techniques like Electrospray Ionization (ESI) or Matrix-Assisted Laser Desorption/Ionization (MALDI). This process converts the peptides into charged ions in the gas phase.
- Mass Analysis: The ions are separated based on their mass-to-charge ratio within a mass analyzer. Different types of mass analyzers, including Time-of-Flight (TOF), Quadrupole, and Orbitrap, are employed depending on the specific application and desired resolution.
- Detection and Data Analysis: The separated ions are detected, and their abundance is measured. This data is then processed to generate a mass spectrum, which represents the unique peptide profile of the sample. This profile is compared against extensive databases of known species to achieve accurate identification.
Technical Features
- High Accuracy: Mass spectrometry provides highly accurate and reliable species identification, even for closely related species or complex samples.
- Rapid Analysis: Compared to traditional methods, mass spectrometry offers significantly faster turnaround times, enabling timely decision-making and intervention.
- Sensitivity: Mass spectrometry can detect and identify species even from minute sample quantities, making it suitable for analyzing trace evidence or limited samples.
- Versatility: This technique can be applied to a broad range of sample types, including microorganisms, plants, animals, and environmental samples, offering a comprehensive solution for biodiversity assessment.
Technical Classification
- MALDI-TOF MS: This technique is widely used for rapid and accurate identification of microorganisms, particularly bacteria and fungi. It is highly suitable for applications in clinical diagnostics, food safety, and environmental monitoring.
- LC-MS/MS: Liquid Chromatography coupled with tandem mass spectrometry (LC-MS/MS) is a powerful technique for analyzing complex protein mixtures. It offers high sensitivity and resolution, enabling the identification of a wider range of species and the study of protein modifications.
- Proteomics: We provide comprehensive proteomic analysis services, which involve the identification and quantification of the entire protein complement of a sample. This approach is valuable for understanding biological processes, identifying biomarkers, and studying the impact of environmental factors on organisms.
Application Filds
Mass spectrometry services cater to a diverse range of applications:
- Microbial Diversity Studies: Analyzing microbial communities in various environments, such as soil, water, and air, to understand their roles in ecosystem functioning and identify potential pathogens.
- Biomonitoring and Ecological Assessment: Assessing the impact of pollution, climate change, and other environmental stressors on biodiversity by analyzing the species composition and protein profiles of indicator organisms.
- Conservation Biology: Identifying endangered or invasive species, tracking wildlife populations, and monitoring the effectiveness of conservation efforts.
- Bioremediation: Monitoring the effectiveness of bioremediation strategies by identifying the microorganisms involved in the degradation of pollutants.
- Environmental Forensics: Tracing the source of pollution or identifying the origin of biological materials in environmental samples..
Environmental Benefits
- By providing accurate and timely species identification and environmental monitoring data, our mass spectrometry services contribute to:
- Informed Conservation Efforts: Enabling evidence-based decision-making for the protection and management of endangered species and ecosystems.
- Effective Pollution Control: Facilitating the identification of pollution sources and the assessment of remediation strategies.
- Sustainable Resource Management: Supporting the sustainable use of natural resources by monitoring biodiversity and ecosystem health.
Our Services
We pride ourselves on offering a comprehensive suite of mass spectrometry services tailored to meet the diverse needs of the scientific community. Our state-of-the-art facilities are equipped with the latest mass spectrometry technology, enabling us to provide accurate, sensitive, and reliable analytical services across a broad spectrum of applications:
- Metabolomics Analysis: Utilizing high-resolution mass spectrometry, we can identify and quantify small molecules in biological samples, providing insights into metabolic pathways and the overall metabolic profile of organisms.
- Microbial Identification: Our MALDI-TOF MS technology is adept at classifying and identifying bacteria through protein profiling, offering a rapid and efficient method for microbial identification.
- Protein Analysis and Proteomics: We specialize in the analysis of proteins and protein complexes, including post-translational modifications, to support research in molecular and cellular biology.
- Environmental Contaminant Analysis: Our services extend to the detection and quantification of contaminants in environmental samples, contribute to ecotoxicology research and environmental monitoring.
- Food Safety and Toxicology: We provide mass spectrometry databases for the testing of pesticides, contaminants, veterinary drugs, mycotoxins, and perfluorinated chemicals (PFCs), ensuring the safety and quality of food products.
- Clinical Research and Forensic Toxicology: Our toxicology spectral library contains over 900 compounds of interest for testing prescription drugs, drugs of abuse, and toxins, supporting clinical research and forensic analyses.
Distinctive Service Features
- Advanced Technology: We invest in the latest mass spectrometry instruments, such as the Thermo Scientific Orbitrap Astral Mass Spectrometer, offering enhanced capabilities in throughput, coverage, sensitivity, and precision.
- Expertise and Experience: Our team consists of seasoned scientists with extensive experience in mass spectrometry, providing invaluable support at every stage of your scientific journey.
- Comprehensive Support: From method development to data interpretation, we offer a full range of services to ensure the success of your project .
- Rapid Turnaround Time: We are committed to delivering prompt results, accommodating the tight schedules often associated with research and development.
Contact Us
By leveraging our mass spectrometry services, you can expect unparalleled precision, expert consultation, and a commitment to environmental responsibility. Contact us today to learn more about how our services can empower your research and contribute to the advancement of bioenvironmental science.
How to Place an Order
Reference
- Lukas K., Radovan H., et al "Identification of bacteria using mass spectrometry techniques" International Journal of Mass Spectrometry 2013, 353(1):67-79.
Our products and services are for research use only and cannot be used for any clinical purposes.