Method of quantitatively detecting chloromethyl methyl ether and

Details Method of quantitatively detecting chloromethyl methyl ether and Method of quantitatively detecting chloromethyl methyl ether and

1975-09-10

1977-08-16

Yudkoff, Norman

Chemistry: physical processes

Physical processes

Crystallization

23230M, 23232C, 23253R, 23254E, 23255E, 73 231, 73 611C, 260613D, 260615R, G01N 3108

Patent

active

040423263

ABSTRACT:
Method of quantitatively determining chloromethyl methyl ether and/or bis-chloromethyl ether at greater sensitivity comprising utilizing an alkali metal salt of a lower alcohol and a readily detectable organic hydroxy compound in lower alcohol medium in a salt-to-hydroxy compound molar ratio of from about 0.2:1 to about 5:1 to react, when warmed, with either or both of said ethers, to form derivatives thereof; adding water to the reaction mixture and an immiscible hydrocarbon solvent; agitating and partitioning the mixture and directing at least a portion of the immiscible organic solvent extract onto a suitable gas chromatograph, preferably packed with glass beads with a stationary liquid phase thereon and more preferably with the beads coated with OV275 as the liquid phase; and eluting the reaction product or products off the column and through a detector therefor with an inert gas.

REFERENCES:
patent: 3807217 (1974-04-01), Wilkens et al.
patent: 3934981 (1976-01-01), Ault et al.
Shadoff et al., "Determination of Bis(chloromethyl)Ether in Air by Gas Chromatography-Mass Spectrometry," Anal. Chem. vol. 45, No. 14, Dec. 1973, pp. 2341-2344.
Ton et al., "Kinetic Study of the Stabilities of Chloromethyl Methyl Ether and Bis(chloromethyl)Ether in Humid Air," Anal. Chem. vol. 46, No. 12, Oct. 1974, pp. 1866-1869.

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