Reference

Synthetic resinous polymer containing biologically active organic material

Synthetic resinous polymer containing biologically active organic material. Derby, Robert L.; Hall, Richard H.; Young, Howard L. (Dow Chemical Co., USA). U.S. US 4460572 A 17 Jul 1984, 7 pp. Cont.-in-part of U.S. Ser. No. 392,119, abandoned. (English). (United States of America). CODEN: USXXAM. CLASS: IC: A61K031-74; A01N031-02; A01N031-035. NCL: 424078000. APPLICATION: US 83-494197 13 May 1983. PRIORITY: US 80-150376 15 May 1980; US 81-259864 4 May 1981; US 82-392119 25 Jun 1982. DOCUMENT TYPE: Patent CA Section: 5 (Agrochemical Bioregulators) Section cross-reference(s): 19 Slow-release fumigants and fertilizers were prepd. contg. a crosslinked polymer. Thus, a slow-release fumigant compn. was prepd. comprising 90 parts of 1,3-dichloropropene [542-75-6] imbibed in 5 parts divinylbenzene (0.5%)-crosslinked polystyrene [9003-53-6] and 5 parts ethylene glycol. These particles were disposed in the ground at a depth of 10 in. to provide 5 gal/acre of 1,3-dichloropropane and to control living pests in the ground for a full growing season of soybeans and corn. Other org. compds. embedded in the polymer matrix were: O,O-diethyl-O-3,5,6-trichloro-2-pyridylphosphorothioate [2921-88-2], 2-(chloro-6-(trichloromethyl)pyridine [1929-82-4], urea (fertilizer), O,O-diethyl-O-(2-isopropyl-6-methyl-4-pyrimidinyl)phosphorothioate [333-41-5], and o-phenylphenol [90-43-7]; other polymers used were: poly(2-ethylhexyl acrylate) [9003-77-4] and butadiene-styrene copolymer [9003-55-8].

Development and validation of an air monitoring method for 1,3-dichloropropene, trans-1,2,3-trichloropropene, cis-1,2,3-trichloropropene, 1,1,2,3-tetrachloropropene, 2,3,3-trichloro-2-propen-1-ol, and 1,1,2,2,3-pentachloropropane

Development and validation of an air monitoring method for 1,3-dichloropropene, trans-1,2,3-trichloropropene, cis-1,2,3-trichloropropene, 1,1,2,3-tetrachloropropene, 2,3,3-trichloro-2-propen-1-ol, and 1,1,2,2,3-pentachloropropane. Leiber, Mark A.; Berk, Howard C. (Res. Dep., Monsanto Agric. Prod. Co., St. Louis, MO 63167, USA). Anal. Chem., 56(12), 2134-7 (English) 1984. CODEN: ANCHAM. ISSN: 0003-2700. DOCUMENT TYPE: Journal CA Section: 59 (Air Pollution and Industrial Hygiene) Section cross-reference(s): 5, 80 A procedure for the sensitive and specific detn. of 1,3-dichloropropene (I) [542-75-6] cis-1,2,3-trichloropropene [13116-57-9], trans-1,2,3-trichloropropene [13116-58-0], 1,1,2,3-tetrachloropropene [10436-39-2], 2,3,3-trichloro-2-propen-1-ol [3266-39-5], and 1,1,2,2,3-pentachloropropane [16714-68-4] in air was developed and evaluated. Tenax-GC [24938-68-9] sampling tubes were used for sample collection, followed by solvent desorption and sample anal. by capillary gas chromatog./electron capture detection. The method was lab.-validated for the range 1 ppb to 6 ppm and overall av. recoveries were 98% at the parts-per-million level and 106% at the parts-per-billion level for all analytes except I. For I the range was 0.4-4.0 ppm with a mean recovery of 100%. The pooled coeffs. of variation ranged from 0.03 to 0.09. Field tests were conducted at a prodn. plant.