Description

2,2',3,3',4,5,5',6,6'-Nonacb (Pcb-208) (13C12, 99%) 40+/-2 Ug/Ml In Nonane is a high-purity, isotopically labeled standard solution, essential for precise analytical quantification. This product is critical for ensuring accuracy and reliability in environmental and food safety testing, where trace-level detection of polychlorinated biphenyls (PCBs) is mandated. It is primarily used by analytical laboratories, regulatory bodies, and research institutions engaged in method development, calibration, and quality control for GC-MS or LC-MS analysis.

Application

• Internal Standard for Mass Spectrometry: Used as a quantitative reference in isotope dilution methods for the analysis of PCBs in complex matrices.
• Environmental Monitoring: Calibration and quality assurance for testing soil, sediment, water, and air samples for PCB contamination.
• Food and Feed Safety Analysis: Accurate quantification of PCB residues to ensure compliance with global food safety regulations (e.g., EU, FDA).
• Method Development and Validation: Serves as a key component in establishing and verifying analytical procedures in accredited laboratories.
• Clinical and Biomonitoring Research: Used in studies measuring PCB levels in human tissue or serum for exposure assessment.
• Proficiency Testing: Provides a known-value component in inter-laboratory comparison programs to benchmark analytical performance.

Basic Information

Product Name	2,2',3,3',4,5,5',6,6'-Nonacb (Pcb-208) (13C12, 99%) 40+/-2 Ug/Ml In Nonane
CAS No.	234432-92-9
Molecular Formula	C21H0Cl913C12
Molecular Weight	~517.66 (for unlabeled congener; labeled form is higher)
Synonyms	PCB 208-13C12; 2,2',3,3',4,5,5',6,6'-Nonachlorobiphenyl-13C12; Nonachlorobiphenyl-13C12 (PCB 208); 13C-labeled PCB 208; Isotopically Labeled PCB Congener 208; EC 922-896-8 (for unlabeled); Aroclor component standard.
EINECS	Contact for details

Quality Control

Every batch of this isotopically labeled standard is manufactured and verified under strict quality protocols to ensure traceability and metrological reliability. The concentration and isotopic purity are confirmed against certified reference materials using high-resolution mass spectrometry. A comprehensive Certificate of Analysis (COA) is provided with each unit, detailing the exact concentration, uncertainty, analytical methods, and batch-specific data to support ISO/IEC 17025 accreditation requirements.

Storage

Preserve in a tightly closed container, protected from light. Store at 2-8°C (refrigerated). Due to its high volatility and preparation in nonane, ensure containers are kept upright in a well-ventilated area to minimize solvent loss and prevent pressure build-up. For long-term stability, storage at -20°C is recommended.

Specification

Item	Specification
Appearance	Clear, colorless to pale yellow solution
Identification (MS)	Conforms to structure
Concentration	40 ± 2 µg/mL in Nonane
Isotopic Purity (13C12)	≥ 99%
Chemical Purity (HPLC)	≥ 98%
Solvent (GC)	Nonane
Homogeneity	Homogeneous solution

Note: Specifications can be tailored. Please contact us for the detailed technical data sheet of a specific grade.