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首页> 外文期刊>Journal of chromatography, A: Including electrophoresis and other separation methods >Direct determination of hydrogen cyanide in cigarette mainstream smoke by ion chromatography with pulsed amperometric detection
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Direct determination of hydrogen cyanide in cigarette mainstream smoke by ion chromatography with pulsed amperometric detection

机译：脉冲安培检测-离子色谱法直接测定卷烟主流烟气中的氰化氢

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摘要

The determination of hydrogen cyanide in cigarette mainstream smoke has been achieved by ion chromatography (IC) with pulsed amperometric detection (PAD). The proposed method of totally trapping whole cigarette mainstream smoke by Cambridge filters, which are treated with sodium hydroxide/ethanol solution, possesses the advantage of fast analysis time over the widespread used solution absorption method. The possible co-existing interferents are evaluated under the optimized detection conditions and excellent recoveries of cyanide are obtained. The cyanide content of absorption solution can be directly determined by the optimized IC-PAD method without any pretreatments. The linear range is 0.0147-2.45μg/mL with R2 value of 0.9997. The limit of the detection is 3μg/L for a 25μL injection loop. The overall relative standard deviation of the method is less than 5.20% and the recovery range from 94.3% to 101.0%. The results obtained from the developed method are in good agreement with that of continuous flow analyzer (CFA) method.
机译：卷烟主流烟气中氰化氢的测定已通过带有脉冲安培检测器（PAD）的离子色谱法（IC）实现。所提出的用氢氧化钠/乙醇溶液处理的剑桥过滤嘴完全捕获卷烟主流烟的方法，与广泛使用的溶液吸收方法相比，具有分析时间快的优点。在优化的检测条件下评估可能存在的干扰物，并获得极佳的氰化物回收率。吸收溶液中氰化物的含量可以通过优化的IC-PAD方法直接测定，无需任何预处理。线性范围为0.0147-2.45μg/ mL，R2值为0.9997。 25μL进样环的检测极限为3μg/ L。该方法的总体相对标准偏差小于5.20％，回收率从94.3％至101.0％。从开发的方法获得的结果与连续流分析仪（CFA）的方法非常吻合。

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