Abstract
A whole headspace injection method was devised and evaluated. In the conventional static headspace method, only a part of headspace gas is introduced into the separation column. The amount of volatile organic compounds in a whole headspace calculated using Henry's constants was shown to be enough for the measurement using gas chromatography-mass spectrometry. Therefore, we have designed a device which allows the whole headspace gas to be sampled from a vial, and the volatile organic compounds in it are brought into a micro-trap, and then into a gas chromatographic-mass spectrometry system. Using this method, sensitive headspace analysis has been achieved.
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