Description

2,2',3,3',5,5',6-Heptacb (Pcb-178) (13C12, 99%) 40+/-2 Ug/Ml In Nonane is a high-purity, isotopically labeled standard of a heptachlorinated biphenyl congener, essential for precise analytical quantification. This certified reference material, with a concentration of 40 ± 2 µg/mL in nonane, provides the critical traceability and accuracy required for compliance-driven environmental and food safety testing. It is primarily used by analytical laboratories, regulatory bodies, and research institutions engaged in the monitoring of persistent organic pollutants (POPs) to ensure data integrity and meet stringent international standards.

Application

This isotopically labeled PCB standard is indispensable in advanced analytical workflows where precision and reliability are paramount.

• Internal Standard for Mass Spectrometry: Used as a quantitative internal standard in GC-MS/MS and HRGC/HRMS analysis to correct for instrument variability and matrix effects.
• Environmental Monitoring: Calibration and quality control for the analysis of PCBs in soil, sediment, water, and air samples to comply with regulations like the Stockholm Convention.
• Food and Feed Safety Testing: Accurate quantification of PCB residues in fatty foods, fish, dairy products, and animal feed to ensure compliance with EU and FDA maximum residue limits (MRLs).
• Method Development and Validation: Serves as a key component in developing, optimizing, and validating analytical methods for congener-specific PCB analysis.
• Proficiency Testing & Laboratory Accreditation: Provides a traceable reference value for inter-laboratory comparison studies and supports ISO/IEC 17025 accreditation.
• Toxicological and Metabolic Studies: Enables precise tracking and quantification of PCB-178 and its metabolites in environmental fate and biological studies.

Basic Information

Item	Details
Product Name	2,2',3,3',5,5',6-Heptacb (Pcb-178) (13C12, 99%) 40+/-2 Ug/Ml In Nonane
CAS No.	232919-67-4
Molecular Formula	C12[13C]12Cl7
Molecular Weight	~395.32 (for 13C12 labeled form)
Synonyms	PCB 178 (13C12); 2,2',3,3',5,5',6-Heptachlorobiphenyl-13C12; Heptachlorobiphenyl-13C12 (IUPAC); 2,2',3,3',5,5',6-HeptaCB; [13C12]-PCB 178; Isotopically Labeled PCB Standard; Certified Reference Material (CRM) for PCBs; 13C-labeled Heptachlorinated Biphenyl
EINECS	Contact for details

Quality Control

Every batch of this certified reference material is produced and verified under a rigorous quality management system. The concentration and isotopic purity are confirmed using state-of-the-art analytical techniques, including High-Resolution Gas Chromatography/Mass Spectrometry (HRGC/HRMS). A comprehensive Certificate of Analysis (COA) is supplied with each unit, providing batch-specific data on concentration, uncertainty, method of analysis, and traceability to international standards. Our quality processes are designed to support compliance with ISO 17034 and ISO/IEC 17025.

Storage

Preserve in a tightly closed container, protected from light. Store at 2-8°C (refrigerated). The solution is provided in nonane, which is flammable; keep away from heat, sparks, and open flame. For long-term stability, storage in a freezer at or below -10°C is recommended. Allow the vial to equilibrate to room temperature before opening to prevent moisture condensation.

Specification

Item	Specification
Appearance	Clear, colorless to pale yellow solution
Concentration	40 ± 2 µg/mL
Solvent	Nonane
Isotopic Purity (13C12)	≥ 99%
Chemical Purity (PCB 178)	≥ 98% (by GC-MS)
Identification	Conforms (GC-MS, Isotopic Pattern)
Expiry Date	Typically 24 months from date of manufacture when stored as directed

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