Reference

High-viscosity microemulsions

High-viscosity microemulsions. Rosano, Henri L. (USA ). Eur. Pat. Appl. EP 118379 A2 12 Sep 1984,17 pp. DESIGNATED STATES: R: AT, BE, CH, DE, FR, GB, IT, LI, LU, NL, SE. (French). (European Patent Organization). CODEN: EPXXDW. CLASS: IC: B01F017-00. APPLICATION: EP 84-420036 2 Mar 1984. PRIORITY: US 83-473078 7 Mar 1983. DOCUMENT TYPE: Patent CA Section: 46 (Surface Active Agents and Detergents) The viscosity of an oil-in-water microemulsion contg. a surfactant having a charged hydrophilic group is increased by the addn. of a surfactant having a charged hydrophilic group which is electrostatically attracted to the charged group of the surfactant in the microemulsion. The microemulsions are useful as cleaning compns., etc. Thus, a microemulsion (viscosity 10 cP) prepd. from kerosine 20, 30% dimethylmyristylamine oxide [3332-27-2] soln. 40, 2.5% NaOCl soln. 100, and tert-amyl alc. [75-85-4] 19.8 mL was treated with 15 mL Genapol ZRO [34870-92-3] (alkyl ether sulfate soln.) to increase the viscosity of the microemulsion to 225 cP.

A direct determination of tertiary amyl alcohol in plasma

A direct determination of tertiary amyl alcohol in plasma. Langvardt, Patrick W.; Braun, Werner H. (Anal. Lab., Dow Chem. Co., Midland, Mich., USA). J. Anal. Toxicol., 2(3), 83-5 (English) 1978. CODEN: JATOD3. ISSN: 0146-4760. DOCUMENT TYPE: Journal CA Section: 4 (Toxicology) A method is described for the detn. of tert-amyl alc. [75-85-4] in plasma. The procedure employed direct injection of heparinized plasma, sepn. by gas-liq.-solid chromatog., and subsequent quantification via selective ion monitoring mass spectrometry. Tert-amyl alc. was detd. by monitoring fragment ions at m/e 59 and m/e 73. Recoveries averaged 99% with a quant. detection limit (2.5 ′ noise) of 0.1 mg/mL. The coeff. of variation for 5 replicate detns. at various plasma concns. of tert-amyl alc. varied from 3.8% at 160 mg/mL to 8.5% at 0.16 mg/mL. Analyses can be accomplished with as little as 50 mL of blood in approx. 15 min.