Collaborative Study of Certain Chlorinated Organic Pesticides in Dairy Products

Mills, Paul A

doi:10.1093/jaoac/44.2.171

Cited by 12 publications

(7 citation statements)

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“…[14C]Lindane and Metabolites developing system: 1% acetone in hexane6 visualization: AgN03 reagent0 1,2,4,5-TCB 1,2,3,4-TCB 1,3,5-TCB 1,2,4-TCB 1,2,3 phorate Rf 0.92 products were purified using charcoal as described by Lichtenstein et al (1973). Benzene extracts containing residues of [14C]DDT or [14C]lindane were purified using Florisil as described by Mills (1961).…”

Section: Methodsmentioning

confidence: 99%

A comparative study of the persistence, movement, and metabolism of six carbon-14 insecticides in soils and plants

Fuhremann¹,

Lichtenstein²

1980

J. Agric. Food Chem.

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Section: Methodsmentioning

confidence: 99%

A comparative study of the persistence, movement, and metabolism of six carbon-14 insecticides in soils and plants

Fuhremann¹,

Lichtenstein²

1980

J. Agric. Food Chem.

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“…of subcutaneous fat surgically removed near the base of the tail. Extraction and clean-up of samples as outlined by Mills (1961) preceded analysis by gas-liquid chromatography. The chromatographic column was 3.2 mm.…”

mentioning

confidence: 99%

DDT Residues in Beef Cows Fed Apple Pomace

Rumsey

Bovard

Shepherd

et al. 1969

Journal of Animal Science

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It has replaced all of the roughage normally used for wintering beef cows (Burris and Priode, 1957). However, in the past, apple pomace has contained up to 40 parts per million (ppm) residues of DDT [1, 1, 1-trichloro-2, 2-bis (p-chlorophenyl) ethane] which accumulated (75.7 ppm) in omental fat of beef steers (Bovard et al., 1961). Currently the U. S. Food and Drug Administration tolerance of DDT residues is 7.0 ppm in animal fat and, therefore, apple pomace is not being used as a feed source. Recently, many apple producers have been using little or no DDT in their pest control programs. Pomace, from the same processors who supplied Bovard et al. (1961) in 1959, contained 1.2 ppm in 1965 and 0.6 ppm in 1966 as analyzed for this present study. If this trend continues, increased use of apple pomace as a practical cattle feed could result. This study was conducted to determine if the current level of DDT residues in apple pomace is low enough to alleviate the residue problem in cattle and, if not, at what levels apple pomace may be fed to wintering pregnant beef cows without causing a build-up of tissue residues above the legal tolerance level in either the cows or their calves.

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“…for six months ± three days. Extraction and clean up procedures for subsequent gas chromatographic assays were modifications of methods of Mills (1961) and Mills et al (1963). The procedure was modified as follows: Fifty grams of diced broccoli was used and reagents were reduced accordingly.…”

Section: Methodsmentioning

confidence: 99%