气相色谱法测定水质内吸磷定量方法的研究  

Study on Quantitative Determination of Demeton in Water by Gas Chromatography

作　　者：朱小梅 张宗祥 韩军文 Zhu Xiaomei;Zhang Zongxiang;Han Junwen(Jiangsu Taizhou Environmental Monitoring Center,Taizhou 225300,China)

机构地区：[1]江苏省泰州环境监测中心,江苏泰州225300

出　　处：《广东化工》2021年第5期188-190,共3页Guangdong Chemical Industry

基　　金：2007年国家环境保护标准制修订项目(917)。

摘　　要：采用气相色谱法测定水质中内吸磷,优化了进样口温度和检测器温度等参数。当进样口温度为200℃,检测器温度为220℃时,内吸磷的总峰面积值最大。对比不同定量方法测定内吸磷的相对误差,用内吸磷混合标准溶液的标准曲线定量时,定量结果的相对误差小于±15%,用内吸磷-O和内吸磷-S单标标准曲线定量,结果的相对误差小于±5%。Demeton in water was determined by gas chromatography, the injection temperature and detector temperature were optimized. when the injection temperature was 200 ℃ and the detector temperature was 220 ℃, the total peak area of demeton was the largest. Comparing the relative error of different quantitative methods, the relative error of quantitative results is less than ± 15 % when using the standard curve of demeton mixed standard solution, and less than ± 5 % when using the single standard curve of demeton-O and demeton-S.

关 键 词：气相色谱法 内吸磷 内吸磷-O 内吸磷-S 转化 定量 

分 类 号：O65[理学—分析化学]