Analytical method for the determination of determination of glycol ethers and glycol esters
Translation of DGUV Information 213-576 (former BGI 505-76)
| Chemical name | Synonyms | CAS Number |
|---|---|---|
| Bis(2-methoxyethyl) ether | Diethylene glycol dimethyl ether, dimethyl diglycol, diglyme | 111-96-6 |
| 2-Butoxyethyl acetate | Butyl glycol acetate | 112-07-2 |
| Butyl glycol | 2-Butoxyethanol, diethylene glycol monobutyl ether, butyl cellosolve | 111-76-2 |
| Dipropylene glycol | Bis(2-hydroxypropyl) ether, 1,1'-oxy-bis(propanol-2) | 25265-71-8* / 110-98-5 |
| 2-Ethoxyethanol | Ethylglykol, ethylene glycol monoethyl ether, ethyl cellosolve | 110-80-5 |
| 2-Ethoxyethyl acetate | Ethyl glycol acetate, 1-acetoxy-2-ethoxyethane, ethyl glycol monoethyl ether acetate | 111-15-9 |
| Hexylglycol | 2-Hexoxy-1-ethanol, ethylene glycol mono-n-hexyl ether | 112-25-4 |
| 2-Methoxyethanol | Methyl glycol, ethylene glycol monomethyl ether, methyl cellosolve | 109-86-4 |
| 2-(2-Methoxyethoxy)ethanol | Methyl diglycol, diethylene glycol monomethyl ether, methyl carbitol | 111-77-3 |
| 2-Methoxyethyl acetate | Methyl glycol acetate, 1-acetoxy-2-methoxyethane | 110-49-6 |
| 2-Methoxy-1-propanol | 1589-47-5 | |
| Phenyl glycol | 2-Phenoxyethanol, monophenyl glycol | 122-99-6 |
* Commercial product comprising a mixture of 3 isomers
Method 01 – GC
Sampling is carried out with a pump with the particulate fraction being collected on a glass fiber filter and the gaseous fraction being adsorbed on a charcoal tube. Analysis is performed by gas chromatography after desorption.
This measuring method permits the determination of concentrations of glycol ethers and esters, such as bis-(2-methoxyethyl) ether, 2-butoxyethyl acetate, butyl glycol, dipropylene glycol, 2-ethoxyethanol, 2-ethoxyethyl acetate, hexyl glycol, 2-methoxyethanol, 2-(2-methoxyethoxy)ethanol, 2-methoxyethyl acetate, 2-methoxy-1-propanol and phenyl glycol – which are referred to as "glycol derivatives" in the following text – at workplaces averaged over the sampling time after personal or stationary sampling.
Principle
A pump draws a defined volume of air through a GGP system equipped with a glass fiber filter and a tube filled with charcoal. Then the collected glycol derivatives are desorbed with a mixture of dichloromethane and methanol and analysed by gas chromatography.
Limit of quantification (LOQ)
Absolute: 0.2 to 3.7 ng for each glycol derivative.
Relative: 0.02 to 0.31 mg/m3 for each glycol derivative based on an air sample of 120 L, a sample solution of 10 mL and an injection volume of 1 µL.
Issue
March 2009
The complete measuring method is available in the Wiley Online Library: Method for the determination of glycol ethers and glycol esters (Air Monitoring Methods, Volume 13, 2012).
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