紫外吸收光谱法海水硝酸盐传感器设计及应用  

Design and Application of Nitrate Sensor Based on Ultraviolet Absorption Spectrometry for Seawater

作　　者：杨鹏程[1] 程长阔[1] 王宁[1] 李燕[1] 皇甫咪咪 任永琴[1] YANG Peng-cheng;CHENG Chang-kuo;WANG Ning;LI Yan;HUANGFU Mi-mi;REN Yong-qin(National Ocean Technology Center,Tianjin 300112,China)

机构地区：[1]国家海洋技术中心,天津300112

出　　处：《仪表技术与传感器》2021年第10期32-36,共5页Instrument Technique and Sensor

基　　金：国家重点研发计划(2017YFC1403800);海洋经济创新发展示范项目(BHSF2017)。

摘　　要：从光路结构、防生物附着措施、电控软件架构和传感器整体结构等方面详细介绍了基于紫外吸收光谱法的海水硝酸盐传感器的设计。相比传统化学方法,光谱法测量海水硝酸盐,无需添加化学试剂,测量简便、快速,适用于在线监测。传感器分别在厦门、蓬莱等海域与国标法进行了比对试验。结果表明:对108个不同海域海水样品的测量,传感器与国标法测量趋势一致,相关性达到0.99以上。目前,传感器布放于渤海海底进行长期在线监测,仪器运行良好,获得了大量海底硝酸盐监测数据。The design of nitrate sensor based on ultraviolet absorption spectrometry was introduced from perspectives of opti⁃cal structure,anti⁃biofouling measures,electronic control software architecture and overall structure of sensor.Compared with the traditional chemical methods,nitrate in seawater was measured by spectrometric method,no chemical regents were added.The test is simple,convenient and fast,suitable for online monitoring.The sensor was tested in Xiamen and Penglai and other sea areas with national standard method.The results show that for 108 samples from different sea areas,the sensor is consistent with the measurement trend of national standard method,and the correlation is more than 0.99.The nitrate sensor has now been deployed in Bohai sea floor for long⁃term on⁃line monitoring,running stably and acquiring large quantities of nitrate data.

关 键 词：紫外吸收光谱法 硝酸盐传感器 在线监测 

分 类 号：P714[天文地球—海洋科学]