Description

2,7/2,8-Dichlorodibenzo-p-Dioxin Isomer Pair (13C12, 99%) 50 Ug/Ml In Nonane is a high-purity, isotopically labeled analytical standard specifically prepared for quantitative analysis. This certified reference material is essential for achieving accurate and traceable measurements in complex matrices. It is primarily required by analytical laboratories, environmental testing facilities, and research institutions engaged in method development, calibration, and quality control for dioxin analysis.

Application

• Quantitative Analytical Standard for the calibration of GC-MS and HRGC-HRMS systems in environmental pollutant analysis.
• Internal Standard & Surrogate Spike for method validation and recovery studies in the analysis of polychlorinated dibenzo-p-dioxins (PCDDs).
• Certified Reference Material (CRM) for ensuring data accuracy, traceability, and compliance in accredited testing laboratories (ISO/IEC 17025).
• Environmental Monitoring of soil, water, air, and biota for regulatory compliance and risk assessment studies.
• Food & Feed Safety Analysis to monitor and control dioxin contamination levels as per EU and FDA regulations.
• Research & Method Development in environmental chemistry, toxicology, and fate/transport studies of persistent organic pollutants (POPs).

Basic Information

Product Name	2,7/2,8-Dichlorodibenzo-p-Dioxin Isomer Pair (13C12, 99%) 50 Ug/Ml In Nonane
CAS No.	116889-68-0
Molecular Formula	12C12H4Cl2O2 / 13C12H4Cl2O2
Molecular Weight	~288.06 (12C) / ~300.06 (13C12)
Synonyms	2,7/2,8-Dichlorodibenzo[b,e][1,4]dioxin (13C12); Carbon-13 Labeled 2,7/2,8-DCDD; 13C12-2,7/2,8-Dichlorodibenzo-p-dioxin; Isotopically Labeled Dioxin Isomer Pair; 13C12-2,7/2,8-DiCDD; PCDD Isotopic Internal Standard; 2,7/2,8-Dichlorodioxin-13C12; Certified Reference Material (CRM) for Dioxin Analysis
EINECS	Contact for details

Quality Control

This certified solution is manufactured and analyzed under strict quality control protocols to ensure identity, purity, and concentration accuracy. Each batch is supplied with a comprehensive Certificate of Analysis (COA) detailing the results from isotopic enrichment (13C12, 99%), chemical purity (HPLC), and concentration verification (GC-MS). Our quality system supports compliance with standards for reference materials, ensuring reliability for your critical analytical applications.

Storage

Preserve in a tightly closed container, protected from light. Store at 2-8°C (refrigerated). Due to the highly volatile nature of the nonane solvent and the light-sensitive properties of the analyte, the vial must be kept sealed and allowed to equilibrate to room temperature before opening to prevent condensation and ensure solution integrity.

Specification

Item	Specification
Product Form	Clear solution in nonane
Concentration	50 µg/mL (as total isomers)
Isotopic Purity (13C12)	≥ 99%
Chemical Purity (HPLC)	≥ 99%
Isomer Ratio (2,7- : 2,8-)	Approx. 1:1 (as certified on COA)
Identification (GC-MS / IR)	Conforms to reference spectrum
Solvent (Nonane) Purity	≥ 99%
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.