| 摘要: |
| 建立了一种适用于海洋远程快速检测氰化物的检测方法，设计了一体化检测装置，未来可搭载到无人艇上实现自动快速检测。针对最佳检测条件进行了一系列优化，得到最佳检测条件：对于100 mL的待测样品，加入酒石酸固体1.5 g；用1~2滴浓度为150 g/L的碳酸钠溶液浸润苦味酸试纸；加热温度80℃，加热时间10 min。在最佳检测条件下，检测检出限达0.3 mg/L。该方法实现了适用于海水氰化钠的远程检测，大大提高了检测效率，无需人员进入污染现场，安全性高。可广泛用于海洋危化品泄漏、湖泊污染、现场应急筛选等场合的水体样品快速检测。 |
| 关键词: 海水 氰化物 快速检测 试纸 |
| DOI：10.11759/hykx20180709001 |
| 分类号:X834 |
| 基金项目:国家重点研发计划（2016YFC1402403） |
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| A method for rapid and remote detection of cyanides in seawater |
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YAO Jing-fang, YUAN Tao, AO Jun-jie, GU Jia-yuan, LI Jia-fan
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School of Environment Science and Engineering, Shanghai Jiaotong University, Shanghai 200240, China
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| Abstract: |
| This study aims to establish a method for rapid detection of cyanides in the ocean using picric acid test paper and to design an integrated detection device. In the future, this device can be mounted on an unmanned boat to realize automatic rapid detection. Optimizations were conducted to obtain the optimal detection conditions for the seawater sample of 100 mL, the weight of tartaric acid solid was 1.5 g, 1~2 drops of 150 g/L sodium carbonate were used to soak the picric acid test paper, the heating temperature was set at 80℃, and the heating time was 10 min. Under the optimal conditions, the test result was satisfactory and the detection limit was 0.3 mg/L. This method realizes the remote and rapid detection of cyanides in seawater, which greatly improves the detection efficiency and does not require personnel to enter the contaminated site. It can be widely used for rapid detection scenarios, such as leakage accident of sea transportation, meeting emergency of lake pollution, and on-site screening. |
| Key words: seawater cyanides rapid detection test paper |
