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由于许多工业部门使用苯及其衍生物——甲苯,所以测定作业工人血内甲苯是一个重要问题。本文用气相色谱法测定血内甲苯。苏制《-5》气相色谱仪,配有火焰电离检定器。用经肝素处理的10 μl玻璃注射器取10μl指血(不作予处理),注入色谱仪。甲苯经由填充玻璃棉的气化器加温便从血样中蒸出。装填玻璃棉可定期清净气化器。适宜的气化温度为160℃[注]。每次进样后及时用过氧化氢清洗,然后用水清洗。为保证分析结果的重现性,每进样4～5次后必须更新气化器内填充的玻璃棉。
As many industries use benzene and its derivatives, toluene, determination of blood toluene in workers is an important issue. In this paper, blood gas chromatographic determination of toluene. Soviet-made “-5” gas chromatograph with flame ionization detector. Take 10 μl of finger blood (without treatment) on a heparin-treated 10 μl glass syringe and inject into the chromatograph. Toluene is evaporated from the blood sample by warming the glass wool-filled vaporizer. Glass wool can be regularly cleaned gasifier. The suitable gasification temperature is 160 ℃ [Note]. Hydrogen peroxide was used to clean the sample immediately after each injection, then rinsed with water. In order to ensure the reproducibility of the analysis results, the glass wool filled in the gasifier must be updated after every 4 to 5 injections.