二氯甲烷中萘标准物质研制  

Development of reference material of naphthalene in dichloromethane

作　　者：刘晓茹[1] 朱国建[2] 阿布都沙拉木·托尔逊[2] 马立平 赵晓辉[1] 常嘉欣 梁铠 LIU Xiaoru;ZHU Guojian;ABUDUSHALAMU Tuoerxun;MA Liping;ZHAO Xiaohui;CHANG Jiaxin;LIANG Kai(China Institute of Water Resources and Hydropower Research,Beijing 100038,China;Xinjiang Ertix River Basin Development Engineering Construction Administration,Urumqi 830000,China)

机构地区：[1]中国水利水电科学研究院,北京100038 [2]新疆额尔齐斯河流域开发工程建设管理局,乌鲁木齐830000

出　　处：《化学分析计量》2022年第6期1-5,共5页Chemical Analysis And Meterage

基　　金：500水库水生态系统、水环境安全调查监测项目(JWYX38/2020)。

摘　　要：介绍二氯甲烷中萘标准物质研制技术。重点讨论了溶液标准物质灌封和量值核验问题。建立了低温灌装、高温火焰熔封的工艺流程,确定了最佳冷冻温度和冷冻时间,降低了破损率,均匀性良好。阐述了不同溶剂标准物质量值核验方法,相对标准偏差为0.33%~0.57%(n=7),相对误差为0.18%~0.89%。该标准物质可用于水中萘的监测,为预防水质安全隐患提供科学依据。The technical of development of naphthalene reference material in dichloromethane was introduced.Embedment and quantity verification of the reference material was discussed.The technological process of low-temperature filling and high-temperature flame sealing was established,the optimal freezing temperature and freezing time were determined,the damage rate was reduced and the the uniformity was good.The verification method of the quantity value between the reference materials in different solvents was described.The relative standard deviation was between 0.33%–0.57%(n=7),and the relative error was between 0.18%–0.89%.The reference material can be used to the monitoring of naphthalene in the water,and provide a scientific basis for preventing potential safety hazards of reservoir water quality.

关 键 词：萘 二氯甲烷 标准物质 灌封技术 量值核验 水质监测 

分 类 号：O657.3[理学—分析化学]