Simple procedures for enrichment of chlorinated aromatic pollutants from fat, water and milk for subsequent analysis by high-resolution methods

Journal Article · Fri Jan 01 00:00:00 EST 1982 · Anal. Lett.; (United States)

DOI:https://doi.org/10.1080/00032718208064383· OSTI ID:5456042

Egestad, B; Curstedt, T; Sjoevall, J

Procedures for enrichment of non-volatile chlorinated aromatic pollutants from fat, water and milk are described. /sup 14/C-DDT was used as a model compound in recovery experiments. A several thousand-fold enrichment of DDT added to butter was achieved by two consecutive straight-phase chromatographies on Lipidex 5000. Trace amounts of DDT in liter volumes of water could be quantitatively extracted by rapid filtration through 2 ml beds of Lipidex 1000. A batch extraction procedure permitted enrichment of DDT from milk after addition of n-pentylamine, methanol and water. DDT could then be eluted from the gel with retention of more than 90% of the lipids. A reversed-phase system with Lipidex 5000 could be used for separation of TCDD from DDT and PCBs. The liquid-gel chromatographic procedures are simple and suitable for clean-up of samples prior to application of high-resolution methods. 5 tables.

• Research Organization: Karolinska Institutet, Stockholm, Sweden
• OSTI ID: 5456042
• Journal Information: Anal. Lett.; (United States), Vol. 15:A3
• Country of Publication: United States
• Language: English

Related Subjects

37 INORGANIC
ORGANIC
PHYSICAL AND ANALYTICAL CHEMISTRY
54 ENVIRONMENTAL SCIENCES
CHLORINATED AROMATIC HYDROCARBONS
LIQUID COLUMN CHROMATOGRAPHY
BUTTER
DDT
FATS
MILK
SEPARATION PROCESSES
WATER
AROMATICS
BIOLOGICAL MATERIALS
BODY FLUIDS
CHROMATOGRAPHY
FOOD
HALOGENATED AROMATIC HYDROCARBONS
HYDROGEN COMPOUNDS
INSECTICIDES
MATERIALS
MILK PRODUCTS
ORGANIC CHLORINE COMPOUNDS
ORGANIC COMPOUNDS
ORGANIC HALOGEN COMPOUNDS
OXYGEN COMPOUNDS
PESTICIDES
400105* - Separation Procedures
520200 - Environment
Aquatic- Chemicals Monitoring & Transport- (-1989)