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KMID : 1039220230330040455
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Journal of Korean Society of Occupational and Environmental Hygiene
2023 Volume.33 No. 4 p.455 ~ p.463
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Sampling and Analytical Method for Linear Carbonates using GC/FID
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Jang Mi-Yeon
Yi Gwang-Yong
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Abstract
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Objectives: The aim of this study was to develop an air sampling and analytical method for estimating worker exposure to linear carbonate solvents and to evaluate the method.
Methods: The target substances were three linear carbonates: DMC, DEC, EMC. GC/FID was used for sample analysis. Laboratory experiments were conducted to determine desorption solvents and sample capacity, and to evaluate storage stability, accuracy, and precision.
Results: Coconut Shell Charcoal (CSC, 100/50 ㎎) was used as the air sampling media, and a desorption solvent of 5% methanol/95% dichloromethane was selected. Recommended sampling capacities were 1~11 ℓ for DMC, 1~18 ℓ for DEC, and 1~24 ℓ for EMC. The stability of three linear carbonates was demonstrated over 30 days in a refrigerator (4℃). Detection limits were determined as follows: DMC 0.26 ㎍/sample, DEC 0.24 ㎍/sample, and EMC 0.25 ㎍/sample. The total coefficient of variation was calculated as DMC 0.064, DEC 0.079, and EMC 0.07.
Conclusions: This sampling and analysis method is suitable for estimating personal exposure to linear carbonates in the workplace.
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KEYWORD
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linear carbonates, DMC, DEC, EMC, air sampling method
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