中文摘要：

研究了空气中的乙醚蒸气在纳米材料表面的催化化学发光现象，发现ZnO纳米棒对乙醚的检测具有较高的灵敏度和选择性，据此设计了检测乙醚蒸气的传感器．该传感器在波长460nm，温度264℃和载气流速280mL·min-1的最佳条件下，化学发光强度与乙醚蒸气浓度在10～2000mL·m13内呈良好的线性关系（R=0．9996），检出限为4．8mL·m-3，响应时间为2s．在可能共存的10种干扰物中，只有乙醛、乙酸和丙酮分别引起1．38％、1．06％和1．31％的干扰，苯、甲醛、氨水、甲醇、七氟醚、乙醇和三氯甲烷等7种蒸气则没有引起干扰．应用该传感器可方便、快速地测定空气中的低浓度乙醚蒸气．

英文摘要：

A sensor for detecting ethyl ether in air was designed based on the cataluminescence phenomenon when ethyl ether vapor was passing through the surface of the ZnO nano-rods. The proposed sensor showed high sensitiv- ity and selectivity to ethyl ether at optimal temperature of 264 ℃, a wavelength of 460 nm and a flow rate of 280 mL · min -l. The linear range of CTL intensity versus concentrations of ethyl ether vapor was 10 mL · m -3 · 2 000 mL· m-3 （R = 0. 999 6）, with detection limits of 4.8 mL · m-3 and the response time was within 2 s. There was no response to common foreign substances, such as benzene, formaldehyde, ammonia, methanol, sevoflurane, ethanol and chloroform,while only acetaldehyde, acetic acid and acetone could cause 1.38%, 1.06%, 1.31% of interference respectively. Ethyl ether vapor could be measured conveniently and quickly by this gas sensor.