Determination of Ethylene Oxide, Ethylene Chlorohydrin, and Ethylene Glycol by Gas Chromatography

1971 ◽  
Vol 60 (2) ◽  
pp. 271-274 ◽  
Author(s):  
Harvey D. Spitz ◽  
Joseph Weinberger
Keyword(s):  
Gas Chromatography ◽  
Ethylene Oxide ◽  
Ethylene Glycol ◽  
Ethylene Chlorohydrin

Rapid Gas Chromatographic Determination of Ethylene Oxide, Ethylene Chlorohydrin, and Ethylene Glycol Residues in Rubber Catheters

1985 ◽  
Vol 68 (3) ◽  
pp. 506-508 ◽  
Author(s):  
Richard J Muzeni
Keyword(s):  
Ethylene Oxide ◽  
Ethylene Glycol ◽  
Linear Response ◽  
Chromatographic Determination ◽  
Flame Ionization Detection ◽  
Ethylene Chlorohydrin ◽  
Flame Ionization ◽  
Coefficients Of Variation ◽  
Isothermal Gas

Abstract Isothermal gas chromatography with flame ionization detection was used to determine residual ethylene oxide (EtO), ethylene chlorohydrin, and ethylene glycol in soft rubber catheters that had been sterilized with EtO. Catheter samples were extracted by shaking with carbon disulflde, and the extract was analyzed on a 3% Carbowax 20M on 80- 100 mesh Chromosorb 101 column, using nitrogen as the carrier gas. Ten replicate injections of a mixed standards solution gave coefficients of variation of 1.91, 1.23, and 4.74% for EtO, ethylene chlorohydrin, and ethylene glycol, respectively. A linear response was obtained with concentrations ranging from 1.0 to 7.9 μg EtO, 14.0 to 88.0 μg ethylene chlorohydrin, and 31.0 to 98.5 μg ethylene glycol. The proposed method detected as little as 0.5, 5.0, and 16.5 ng EtO, ethylene chlorohydrin, and ethylene glycol, respectively.

Determination of purity and impurities of ethylene glycol for industrial use by gas chromatography

2019 ◽  
Vol 37 (1) ◽  
pp. 116
Author(s):  
Chenliang FAN ◽  
Yuhong ZHANG ◽  
Chuan WANG ◽  
Zhenlei PENG ◽  
Zhirong GAO
Keyword(s):  
Gas Chromatography ◽  
Ethylene Glycol ◽  
Industrial Use

Determination of 2-Chloroethanol in Honey, Beeswax, and Pollen

1983 ◽  
Vol 66 (3) ◽  
pp. 659-662
Author(s):  
Gary W Bruns ◽  
Robert A Currie
Keyword(s):  
Ethylene Oxide ◽  
Maximum Amount ◽  
Ethylene Chlorohydrin ◽  
Liquid Chromatograph ◽  
Naturally Occurring ◽  
Specific Detector

Abstract Procedures were developed and tested for the determination of residues of 2-chloroethanol (ethylene chlorohydrin, ECH) in honey, beeswax, and pollen. Recoveries of ECH from fortified samples averaged 91,87, and 89%, respectively, for each substrate. The maximum amount of ECH found in substrate fumigated with ethylene oxide was 36 μg/g in honey, 124 μg/g in beeswax, and 132 μg/g in pollen. A tendency was noted for darker waxes, which contain larger amounts of naturally occurring chlorides than light-colored waxes, to contain the greater amounts of ECH. A gas-liquid chromatograph equipped with a Dohrmann halogen-specific detector was used for identification and quantitation.

Specific Determination of Ethylene Oxide and Ethylene Chlorohydrin in Cosmetics and Polyoxyethylated Surfactants by Gas Chromatography with Electron Capture Detection

1993 ◽  
Vol 76 (2) ◽  
pp. 292-296 ◽  
Author(s):  
Kumiko Sasaki ◽  
Keiji Kijima ◽  
Mitsuharu Takeda ◽  
Shigeo Kojima
Keyword(s):  
Gas Chromatography ◽  
Ethylene Oxide ◽  
Electron Capture ◽  
Potassium Iodide ◽  
Electron Capture Detection ◽  
Potassium Iodide Solution ◽  
Ethylene Chlorohydrin ◽  
Specific Determination ◽  
Iodide Solution ◽  
Nitrogen Stream

Abstract A simple specific determination method was developed for ethylene oxide (EO) and ethylene chlorohydrin (ECH) in cosmetics and surfactants. EO is desorbed from samples by using a nitrogen stream and absorbed into acidic potassium iodide solution, where it is converted to ethylene iodohydrin (EIH). Any remaining ECH in the samples is converted to EO by the addition of sodium hydroxide, and the desorption procedure is repeated with a fresh acidic potassium iodide absorbing solution. EIH is extracted with benzene and determined by gas chromatography with electron capture detection. EO and ECH contents in the samples are calculated from EIH results. Recoveries from water and shampoo samples were 70.3 ± 5.4 and 58.9 ± 1.2%, respectively, for EO and 66.3 ± 4.0 and 64.5 ± 4.6%, respectively, for ECH. Detection limits in 0.2-2.0 g samples were in the 0.005-0.03 μg/g range for EO and 0.01-0.07 μg/g for ECH. High levels of EO (30-394 μg/g as ECH) were found in 5 of 18 polyoxyethylated surfactant samples, but only small amounts (0.07-4.0 μg/g) of ECH were detected in the samples. EO was not detected in cosmetic samples tested, but ECH was present in small quantities (≤1.11 μg/g).

Simple and Accurate Method for Determination of Ethylene Chlorohydrin in Dried Spices and Condiments

1988 ◽  
Vol 71 (4) ◽  
pp. 729-731
Author(s):  
Paul Aitkenhead ◽  
Arne Vidnes
Keyword(s):  
Gas Chromatography ◽  
Related Compound ◽  
Coefficient Of Variation ◽  
Standard Addition ◽  
Accurate Method ◽  
Flame Ionization Detection ◽  
Ethylene Chlorohydrin ◽  
Extraction Solvent ◽  
Flame Ionization

Abstract A simple and accurate method is described for the determination of ethylene chlorohydrin (ECH) by using capillary gas chromatography (GC) and flame ionization detection. Acetonitrile-methanol was chosen as the extraction solvent in preference to other solvents because its use reduced the number of compounds detected by the GC system, thus enabling easier identification and quantitation of ECH. The coefficient of variation for the method is 2.7% at 5 ppm, and recovery is good, even for the standard addition of 1 ppm. Fifteen different spices and condiments were analyzed using this method; 20% were identified as positive for ECH. The method also identifies the related compound ethylene bromohydrin (EBH).

Determination of ethylene glycol in lubricants by derivatization static headspace gas chromatography

2015 ◽  
Vol 7 (13) ◽  
pp. 5545-5550 ◽  
Author(s):  
Kaelyn Gras ◽  
Jim Luong ◽  
Monica Lin ◽  
Ronda Gras ◽  
Robert A. Shellie
Keyword(s):  
Gas Chromatography ◽  
Ethylene Glycol ◽  
Reliable Method ◽  
Headspace Gas Chromatography ◽  
Static Headspace ◽  
Static Headspace Gas Chromatography ◽  
Headspace Gas ◽  
Synthetic Lubricants

A practical and reliable method for the analysis of ethylene glycol in either hydrocarbon based or synthetic lubricants has been successfully developed and implemented.

Sign in / Sign up

Export Citation Format

Share Document