| 小体积直接进样气相色谱法应急监测水中甲醇 |
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| 引用本文： | 周丕全,张红雨,张杰,杨孟凌.小体积直接进样气相色谱法应急监测水中甲醇[J].中国给水排水,2008,24(6):86-87. |
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| 作者姓名： | 周丕全 张红雨 张杰 杨孟凌 |
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| 作者单位： | 国家城市供水水质监测网武汉监测站,湖北,武汉,430034 |
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| 摘 要： | 建立了水中甲醇的应急监测新方法，采用小体积直接进样、大口径毛细管柱分离、氢火焰离子化检测器气相色谱法，在几分钟内完成了对水中甲醇的快速测定。该方法的线性测定浓度范围为5～500mtg／L，相对标准偏差为l.6％～4.3％，平均加标回收率为88％～93％，标准曲线的相关系数为0．9992，最低检测浓度为0．3mtg／L。测定结果不受其他干扰物质的影响，可用于水中甲醇的应急监测。
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| 关 键 词： | 应急监测 气相色谱 直接进样 甲醇 小体积 直接进样 气相色谱法 测水 甲醇 Direct Injection Volume Small Water Methanol Monitoring 影响 干扰物质 测定结果 最低检测浓度 相关系数 标准曲线 加标回收率 差为 相对标准 |
Emergency Monitoring of Methanol in Water by GC with Small Volume Direct Injection |
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| ZHOU Pi-quan,ZHANG Hong-yu,ZHANG Jie,YANG Meng-ling.Emergency Monitoring of Methanol in Water by GC with Small Volume Direct Injection[J].China Water & Wastewater,2008,24(6):86-87. |
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| Authors: | ZHOU Pi-quan ZHANG Hong-yu ZHANG Jie YANG Meng-ling |
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| Affiliation: | ZHOU Pi-quan,ZHANG Hong-yu,ZHANG Jie,YANG Meng-ling (Wuhan Station,National City Water Supply Quality Monitoring Net,Wuhan 430034,China) |
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| Abstract: | A new method for emergency monitoring of methanol in water was developed.The methanol was quickly determined within several minutes using gas chromatography(GC) with small volume direct injection,a wide-bore capillary column and hydrogen FID.The linear range of the method is 5 to 500 mg/L,the relative standard deviation is 1.6% to 4.3%,the average recovery rate with standard addition is 88% to 93%,the correlation coefficient of the standard curve is 0.999 2,and the lowest limit of detection is 0.3 mg/L.The ... |
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| Keywords: | emergency monitoring gas chromatography(GC) direct injection methanol |
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