光谱学与光谱分析 |
|
|
|
|
|
Construction and Test of Long Pathlength Automated Analyzer of Trace Nutrients in Seawater |
SUN Zhao-hua1,2, CAO Wen-xi1, ZHAO Jun1,2, LI Cai1, ZHOU Wen1,2 |
1. LED Laboratory, South China Sea Institute of Oceanology, Chinese Academy of Sciences, Guangzhou 510301, China 2. Graduate School of the Chinese Academy of Sciences, Beijing 100039, China |
|
|
Abstract Nutrients are routine aspects for marine environment monitoring. With low concentration in oceans, nutrients are difficult to be measured with a routine spectrophotometer. Based on liquid core waveguides, a new high-sensitivity analyzer was constructed to measure trace nutrients in oceans. The analyzer can provide continuous measurement of spectral absorbance of water sample in the spectral range from 350 to 900 nm with a spectral resolution of 1.02 nm. The processes such as sample injection, data acquisition of absorbance and data analysis are automatically controlled by a built-in PC104 micro computer. The results of test proved that, with the reaction time of about three minutes, the analyzer could provide a detection limit of the order of nmol·L-1, which is about 1 000 times lower than that of routine spectrophotometer. The analyzer is amenable to trace nutrients monitoring in oceans.
|
Received: 2007-08-31
Accepted: 2007-12-02
|
|
Corresponding Authors:
SUN Zhao-hua
E-mail: sunhua6514@163.com
|
|
[1] FENG Shi-zuo, LI Feng-qi, LI Shao-jing(冯世笮,李凤岐,李少菁). An Introduction to Marine Science(海洋科学导论). Beijing:Higher Education Press(北京:高等教育出版社),2004. [2] ZHANG Zheng-bin, LIU Lian-sheng(张正斌,刘莲生). Marine Chemistry(海洋化学). Ji’nan:Shandong Education Press(济南:山东教育出版社),2004. [3] Robert J. Kieber,Pamela J. Seatont. Anal. Chem., 1995, 67: 3261. [4] WANG Yang, FAN Shi-hua(王 洋,范世华). Spectroscopy and Spectral Analysis(光谱学与光谱分析), 2005,25(2): 184. [5] YUAN Ya-li, DENG Jian, XU Jin-sheng(袁亚莉,邓 健,许金生). Spectroscopy and Spectral Analysis(光谱学与光谱分析), 2002,22(5):806. [6] ZHANG Li-yan, ZHAO Li, CHEN Xi(章丽燕,赵 丽,陈 曦). Spectroscopy and Spectral Analysis(光谱学与光谱分析), 2006,26(9):1631. [7] Fang Guozhen, Nie Liu. Analytica Chimica Acta, 2001, 445(2): 245. [8] Cui Xiaojun, Fang Guozhen, Jiang Liqin, et al. Analytica Chimica Acta, 2007, 590(2): 253. [9] Dallas Tim, Dasgupta Purnendu K. Trends in Analytical Chemistry, 2004, 23(5): 385. [10] Yao Wensheng, Byrne Robert H, Waterbury Robert D. Environ. Sci. Technol., 1998, 32(17): 2646. [11] Zhang Jiazhong. Deep-Sea Research I, 2000, 47: 1157. [12] SteimLe Eric T, Kaltenbacher Eric A, Byrne Robert H. Marine Chemistry, 2002, 77: 255. [13] Byrne Robert H, Kaltenbacher Eric A, Waterbury Robert. Sea Technology, 1999, 40(2): 71. [14] Waterbury Robert D, Yao Wensheng, Byrne Robert H. Analytica Chimica Acta, 1997, 357: 99. [15] Callahan Michael R, Rose Joan B, Byrne Robert H. Talanta, 2002, 58: 891. [16] Dress Peter, Belz Mathis, Klein Karl-F, et al. Sensors and Actuators, 1998, B51: 278. [17] Yao Wensheng, Byrne Robert H. Talanta, 1999, 48: 277. [18] Li Qian Perry Li, Zhang Jia-Zhong, Millero Frank J, et al. Marine Chemistry, 2005, 96: 73. [19] Larsson Henrik, Dasgupta Purnendu K. Aanlytica Chimica Acta, 2003, 485: 155. [20] XU Zhong-min, YU Bing-xi, JIN Xi-feng. ISIST’, 2004 Proceeding. Vol, 3, 759. |
[1] |
LI Zhen-gang1, 2, SI Gan-shang1, 2, NING Zhi-qiang1, 2, LIU Jia-xiang1, FANG Yong-hua1, 2*, CHENG Zhen1, 2, SI Bei-bei1, 2, YANG Chang-ping1, 2. Research on Long Optical Path and Resonant Carbon Dioxide Gas
Photoacoustic Sensor[J]. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2023, 43(01): 43-49. |
[2] |
WANG Run-yu1, DONG Da-ming1,2, YE Song1*, JIAO Lei-zi1,2. Measurement of Volatile Compounds Released From Plastic Using[J]. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2021, 41(10): 3039-3044. |
[3] |
JIN Hua-wei1, 2, 3, XIE Pin-hua1, 2, HU Ren-zhi1, 2*, LIU Wen-qing1, 2, LI Zhi-yan1, 2, CHEN Hao1, 2, HUANG Chong-chong1, 2. Study on Photo-Acoustic Spectrum Detection Technology of Respiratory Dust Absorption Coefficient[J]. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2019, 39(07): 1993-1998. |
[4] |
WANG Jie-sheng, XU Ming-chan, LI Chun, YUAN Guang*. Influence of Infrared Adsorption Properties of Sodium Nitrate with Silver/Diamond Powder (Ag/DP) Composites[J]. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2017, 37(09): 2737-2742. |
[5] |
LÜ Mo1, WANG Yi-ding1*, CHEN Chen2*. Development of Mid-Infrared Trace-CO Detector with Long-Path Differential Optical Absorption Spectroscopy (LP-DOAS)[J]. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2017, 37(07): 2278-2282. |
[6] |
GUO Jin-jia, YANG De-wang, LIU Chun-hao . Raman Signal Enhancement for Gas Detection Using a Hollow Core Optical Fiber[J]. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2016, 36(01): 96-98. |
[7] |
YANG Shi-ling, YUE Li, JIA Zhi-jun* . Influence of Silver/Silicon Dioxide on Infrared Absorption Spectroscopy of Sodium Nitrate [J]. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2014, 34(09): 2407-2412. |
[8] |
DU Bin-bin1,2, ZHANG Peng1,2, GAO Wen-hong1,2, SHI Yun-bo1,2, ZHU Lin-quan1,2 . Long Optical Path Gas Detection Based on MEMS Infrared Light Source [J]. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2014, 34(04): 977-981. |
[9] |
FAN Jie, CHEN Xiao*, HUANG Qi-feng, ZHOU Yu, CHEN Gang . Study on High Accuracy Detection of Multi-Component Gas in Oil-Immerse Power Transformer[J]. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2013, 33(12): 3326-3329. |
[10] |
LIN Jun-fang1, 2, SUN Zhao-hua1*, CAO Wen-xi1, HU Shui-bo1, 2, XU Zhan-tang1 . Construction and Application of an Onboard Absorption Analyzer Device for CDOM [J]. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2013, 33(04): 1141-1145. |
[11] |
SUN Zhao-hua1, 2, ZHOU Wen1, XU Zhan-tang1, 2, YE Hai-bin1, 2, YANG Chao-yu1, 2, LIN Jun-fang1, 2, HU Shui-bo1, 2, YANG Yue-zhong1,LI Cai1,CAO Wen-xi1 . Progress in Teflon AF LWCC/LCW Applications[J]. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2011, 31(11): 2881-2885. |
[12] |
XU Liang,LIU Jian-guo,GAO Min-guang,LU Yi-huai,WEI Xiu-li,ZHANG Tian-shu,ZHU Jun,CHEN Jun . Application of Long Open Path FTIR System in Ambient Air Monitoring[J]. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2007, 27(03): 448-451. |
[13] |
LIU Zhao-rong,HU Di . Study on the Gas-Phase Reaction of α-Pinene with Ozone by LP-FTIR [J]. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2004, 24(07): 813-816. |
|
|
|
|