Polychlorinated Dibenzo-p-dioxin/

Polychlorinated Dibenzofuran (PCDD/PCDF)

• USEPA Method 1613B
• USEPA Method 8290A
• USEPA Method 8280B
• USEPA Method 613
• NCASI

Polychlorinated Biphenyls (PCB)

• USEPA Method 1668A and 1668C

Polybrominated Diphenyl Ethers (PBDE)

• USEPA Method 1614

Polychlorinated Naphthalenes (PCN)

• Modified USEPA Method 1668A

Air Analysis

• USEPA Method 23
• USEPA Method 0023A
• USEPA Method TO-9A
• Modified Method TO-13A
• CARB Method 428
• CARB Method 429

Hexachlorobenzene/Hexachlorocyclopentadiene (HCB/HCP)

• Modified USEPA Method 1625

Introducing New Methods!

• USEPA Method 1694 - Pharmaceutical and Personal Care products by LC/MS/MS
• USEPA Method 1698 - Steroids and Hormones by HRGC/HRMS
• USEPA Method 1699 - Pesticides by HRGC/HRMS
• Melamine and Related Contaminants (MARC) by LC/MS/MS
• Nitrofuran Metabolites in Animal Products by LC/MS/MS

  

Nitrofuran Metabolites in Animal Products by LC/MS/MS

Nitrofurans are analyzed as their respective metabolites: AOZ, AMOZ, AHD,and SEM in a range of food matrices. These metabolites are obtained by acid hydrolysis, derivatization using 2-nitrobenzaldehyde, and cleanup. The extract is then analyzed using liquid chromatography-tandem mass spectrometry (LC/MS/MS) at practical quantitation limits well below the European Union MRPL of 1 µg/kg.  

Analyte	CAS #
3-amino-2-oxazolidinone (AOZ)	80-65-9
3-amino-5-morpholinomethyl-2-oxazolidinone (AMOZ)	43056-63-9
1-aminohydantoin (AHD)	6301-02-6
Semicarbazide (SEM)	563-41-7