甲醇氨氧化合成氢氰酸产物气相色谱在线分析方法
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摘要
采用三阀四柱系统气相色谱对甲醇氨氧化合成氰化氢的产物进行在线一次分析。采用了标准物质对照法对产物中主要组分进行定性,然后采用外标法计算产物中的气体体积分数。经过标准气体样品的检测验证,所建立的定量分析方法可靠,最低含量物质的相对误差<3%,标准偏差在允许范围之内。
The products in hydrogen cyanide production by ammoxidation of methanol were analyzed on-line by gas chromatography equipped with three valves and four columns. The main components in the product were qualitatively determined by contrasting with standard samples. Then the volume fraction of the gas in the product was calculated by the external standard method. The test with standard gas showed that the relative error of the lowest content substance was less than 3%, and the standard deviation was within the allowable range.
The products in hydrogen cyanide production by ammoxidation of methanol were analyzed on-line by gas chromatography equipped with three valves and four columns. The main components in the product were qualitatively determined by contrasting with standard samples. Then the volume fraction of the gas in the product was calculated by the external standard method. The test with standard gas showed that the relative error of the lowest content substance was less than 3%, and the standard deviation was within the allowable range.
引文
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[7]李保同,曾鑫年,曾鑫年,等.吹扫捕集法测定粮食中熏蒸剂氰与氰化氢残留量[J].中国粮油学报, 2013, 28(3):113-116.
[8]陈伟华,鲍峰伟,苏国岁,等.顶空-气相色谱法测定卷烟主流烟气中的氰化氢[J].烟草化学, 2013, 7(2):51-54.
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[2]张艳燕,钟坚海,陈章捷,等.气相色谱法测定葡萄酒和饮料中二碳酸二甲酯[J].食品与发酵科技, 2017,53(1):105-107.
[3]王瑞玉,郑华艳,李忠,等.甲醇气相氧化羰基化产物在线气相色谱分析[J].太原理工大学学报, 2010, 41(2):123-126.
[4]闫铁奇.氰化氢的聚合与预防[J].内蒙古石油化工,2015, 11(3):85-86.
[5]俞晓晶,丁高松,金达莱,等.气相色谱FPD检测器在线分析磷化氢气体[J].浙江理工大学学报, 2009, 26(2):219-222.
[6]陈跃华,陈雄杰,周旭东,等.系统气相色谱分析煤气化工艺气方法的建立[J].内蒙古石油化工, 2010, 23(1):11-13.
[7]李保同,曾鑫年,曾鑫年,等.吹扫捕集法测定粮食中熏蒸剂氰与氰化氢残留量[J].中国粮油学报, 2013, 28(3):113-116.
[8]陈伟华,鲍峰伟,苏国岁,等.顶空-气相色谱法测定卷烟主流烟气中的氰化氢[J].烟草化学, 2013, 7(2):51-54.
[9]刘英杰.工作场所空气中氰化氢的气相色谱测定法[J].职业与健康, 2005, 21(3):375-376.
[10]徐鹏程.浅议氰化氢的聚合与预防[J].内蒙古石油化工,2016, 12(4):53-54.