Description

Pcb 28-13C12 is a stable isotope-labeled analog of PCB congener 28, where 12 carbon atoms are replaced with the Carbon-13 isotope. This compound is an essential internal standard and reference material for high-precision analytical chemistry, enabling accurate quantification and method validation. It is primarily required by environmental testing laboratories, regulatory agencies, and research institutions conducting trace-level analysis of polychlorinated biphenyls (PCBs) in complex matrices.

Application

• Internal Standard for GC-MS/MS Analysis: Used for the precise quantification of native PCB-28 in environmental, food, and biological samples via isotope dilution mass spectrometry.
• Method Development and Validation: Critical for establishing and verifying the accuracy, precision, and recovery of analytical methods for PCB detection.
• Quality Assurance/Quality Control (QA/QC): Serves as a spike for laboratory control samples, matrix spikes, and ongoing performance checks to ensure data integrity.
• Certified Reference Material (CRM) Production: Acts as a key component in the formulation of certified calibration solutions and matrix-matched reference materials.
• Environmental Monitoring and Forensics: Supports studies tracking PCB contamination sources, fate, and transport in ecosystems.
• Metabolite and Degradation Studies: Utilized in research to trace the metabolic pathways and environmental breakdown products of PCBs.

Basic Information

Product Name	Pcb 28-13C12
CAS No.	208263-76-7
Molecular Formula	¹³C₁₂H₈Cl₄
Molecular Weight	~280.9 (based on ¹³C substitution)
Synonyms	2,4,4'-Trichlorobiphenyl-13C12; PCB 28-13C12; [13C12]-PCB 28; 2,4,4'-Trichloro[13C12]biphenyl; 13C12-Labelled PCB Congener 28; Isotopically Labeled PCB-28; 2,4,4'-Trichloro-1,1'-biphenyl-13C12; Aroclor 1242/1248/1254 Congener 28-13C12
EINECS	Contact for details

Quality Control

Every batch of Pcb 28-13C12 is manufactured and analyzed to meet the stringent requirements for isotopic purity and chemical purity demanded by advanced analytical laboratories. Our rigorous quality testing ensures compliance with relevant standards for certified reference materials. A comprehensive Certificate of Analysis (COA) is provided with each shipment, detailing isotopic enrichment, chemical purity, concentration, and solvent verification.

Storage

Preserve in a tightly closed container, protected from light. Store at controlled room temperature (15-25°C) in a dry, well-ventilated area. For long-term stability, solutions may be stored at lower temperatures (e.g., -20°C).

Specification

Item	Specification
Appearance	Clear, colorless to pale yellow solution
Chemical Purity (by GC)	≥ 98%
Isotopic Purity (¹³C)	≥ 99 atom %
Isotopic Enrichment	≥ 99% on each labeled position
Concentration	10 µg/mL ± 5% in nonane (or as specified)
Identification (IR/NMR)	Conforms to structure
Assay (HPLC/GC-MS)	98 - 102% of stated concentration
Solvent Verification (GC)	Confirmed

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