A new design of gas chromatographic detector, based upon hyperthermal negative surface ionization, was used in capillary gas chromatography to sensitively and selectively detect alcohols and phenols. The unique properties of this design allowed detection of these oxygen-containing compounds to which conventional nitrogen-phosphorus detectors are reported to have little response. The sensitivity to l-pentanol and phenol was 8.5 × 10↑(-1) and 2.6× 10↑(0) C/g, respectively, with a linear range of operation greater than 1×105 for both these compounds. The minimum detectable level was in the range of 10↑(-13) g/s. Compared with a flame ionization detector, the new detector was～100 times more sensitive to alcohols and phenols, depending on the particular species.
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