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。
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 determination results are not influenced by other interference materials. The method can be used for emergency monitoring of methanol in water,
出处
《中国给水排水》
CAS
CSCD
北大核心
2008年第6期86-87,共2页
China Water & Wastewater
关键词
应急监测
气相色谱
直接进样
甲醇
emergency monitoring
gas chromatography （GC）
direct injection
methanol
